print following while X is entered by user | CTechnotips

Question : Print Following while X is entered by user .

Here X=4

0001000
0011100
0111110
1111111

Ans :

#include<stdio.h>
#include<conio.h>
void main()
{
    int i,j,no;

    clrscr();

    printf("\n Please Enter No : - ");
    scanf("%d",&no);

    printf("\n\n ");
    for(i=0;i<no;i++)
    {
        for(j=0;j<no;j++)
        {
            if(j>=no-1-i)
                printf("1");
            else
                printf("0");
        }
        for(j=1;j<no;j++)
        {
            if(j<=i)
                printf("1");
            else
                printf("0");
        }
        printf("\n ");
    }

    getch();
}

 

friends Help me i want to print this type of pattern | CTechnotips

Problem : friends Help Me i want to print this type of pattern:

*
..*
....*
......*
........*
..........*
............*
..............*
.................* 

where dot showing the space

Solution :

#include<stdio.h>
#include<conio.h>
void main()
{
    int i=0,no=0,j=0;
    clrscr();
    printf("\nPlease Enter The Number : - ");
    scanf("%d",&no);
    for(i=0;i<no;i++)
    {
        printf("\n");
        for(j=0;j<no;j++)
        {
            if(i==j)
            printf("*");
            else
            printf(" ");
        }
    }
    getch();
}

can any one help me for this program | CTechnotips

Problem :

Can any one help me for this program.

1 1
1 2 2 1
1 2 3 3 2 1
1 2 3 4 4 3 2 1 

plz help me soon..

Solution :


#include<stdio.h>
#include<conio.h>
void main()
{
    int i=0,j=0,no=0;
    clrscr();
    printf("\n Please Enter The Number : - ");
    scanf("%d",&no);
    for(i=1;i<=no;i++)
    {
        printf("\n");
        for(j=1;j<=i;j++)
        {
            printf("%d",j);
        }
        for(j=no;j>0;j--)
        {
            if(j<=i)
            printf("%d",j);
        }
    }
    getch();
}

plz give me the solution of the following matrix in c language | CTechnotips

Problem :

plz give me the solution of the following matrix in c

1 1 1 1 0
1 1 1 0 -1
1 1 0 -1 -1
1 0 -1 -1 -1
0 -1 -1 -1 -1 

plzz help.......

Solution :

#include<stdio.h>
#include<conio.h>
void main()
{
    int i=0,j=0,no=0;
    clrscr();
    printf("\nPlease Enter The number : - ");
    scanf("%d",&no);
    for(i=0;i<no;i++)
    {
        printf("\n");
        for(j=0;j<no;j++)
        {
            if(i==(no-j-1))
            printf("0");
            else if(i<(no-j-1))
            printf("1");
            else
            printf("-1");
        }
    }
    getch();
}

calculator project in c language | CTechnotips

#include<stdio.h>
#include<conio.h>
#include<process.h>
#include<dos.h>
#include<stdlib.h>
#include<iostream.h>
#include<graphics.h>
#include<math.h>
#include<string.h>

float *mem;
int X=0, Y=0;
int row=17,col=5;
char dummy;
char flag='d',flagp='0';
char bflag='u',bflagp='u';
int mflag=0;
char ch,ch1,ch2;
int sflag=0;
int midx,midy;

# define UNCLICKED 0
# define CLICKED 1
# define PI 3.14159


char str1[]={"Welcome to My Calculator ..."};

void typeit (int x,int y,int spacing,char string[])
{
char temp[2];
for (int i=0;i<strlen(string);i++)
        {
             delay(100);
             temp[0]=string[i];
             temp[1]='\0';
             outtextxy(x+(i+1)*spacing,y,temp);
        }//endfor

}
void front()
{
 int x,y,h;
 for(x=0;x<=100;x++)
 {
  settextjustify(CENTER_TEXT,CENTER_TEXT);
  setcolor(1);
  settextstyle(1,0,4);
  setusercharsize(x,6,x,3);
  setcolor(14);
  moveto(310,135);
  outtext("..");
  setcolor(6);
  moveto(310,130);
  outtext("I I");
  if(x<50)
  delay(30);
  else
  delay(20);
 }
 for(y=0;y<=100;y++)
 {
  setcolor(0);
  settextstyle(1,0,4);
  setusercharsize(y,6,y,3);
  moveto(310,135);
  outtext("..");
  moveto(310,130);
  outtext("I I");
 if(y>20)
 {
  settextstyle(7,0,3);
  setusercharsize(y-20,35,y-20,30);
  setcolor(9);
  outtext("CALCULATER");
  setcolor(2);
  outtext("___________");
  delay(15);
  if(y<100)
  {
   settextstyle(7,0,3);
   setusercharsize(y-20,35,y-20,30);
   setcolor(0);
   outtext("CALCULATER");
  }
 }
}
//delay(1000);
settextstyle(3,0,2);
delay(50);
outtextxy(midx-200,midy,"Welcome Page:-");
//x=10,y=10;
setcolor(6);
settextstyle(4,0,4);
typeit(midx-200,midy+50,15,str1);
getch();
//closegraph();
}

char input();
double add(double,double,char);
double angle_conv(double);
void basecng(double,double);
/************************************************************/
/*                                       */
/*   THIS FUNCTION DRAWS THE BUTTONS OF THE CALCULATER      */
/*                                                          */
/************************************************************/
 void button_3d(int x1,int y1,int x2,int y2,int check,char* text,int color)
{
int up,low;
setfillstyle(1,7);
bar(x1,y1,x2,y2);
if(check==0)    //Unclicked
up=15,low=8;
else
up=8,low=15;     //Clicked
setcolor(low);
line(x2,y1,x2,y2);
line(x2-1,y1,x2-1,y2);
line(x1,y2,x2,y2);
line(x1+1,y2-1,x2,y2-1);

setcolor(up);
line(x1,y1,x2,y1);
line(x1+1,y1+1,x2-1,y1+1);
line(x1,y1,x1,y2);
line(x1+1,y1+1,x1+1,y2-1);
setcolor(color);

settextjustify(CENTER_TEXT,CENTER_TEXT);
outtextxy(x1+(x2 - x1)/2,(y1+(y2 - y1)/2)-2, text);

}
/*********************************************************************/
/*                                                                   */
/*               This function makes the opening screen              */
/*                                                                   */
/*********************************************************************/

void frontpage(void)
{
int mx, my;

mx = (getmaxx() / 2);
my = (getmaxy() / 2);

//SET baqckground color
setfillstyle(9, 1);
bar(0,0,getmaxx(),getmaxy());

//DRAW a bar, and make it look like a 3d bar
setfillstyle(1,7);
bar(50,20,600,400);

//DRAW lines for the top and left side
setcolor(15);
line(50,20,600,20);
line(51,21,599,21);
line(50,20,50,400);
line(51,21,51,399);

//DRAW lines for the bottom and right side
setcolor(8);
line(600,20,600,400);
line(599,21,599,400);
line(50,400,600,400);
line(51,399,600,399);

//DRAW two 3D bars for the left and right side

setfillstyle(9,8);
bar(70,40,100,380);
//getch();
bar(545,40,575,380);
setcolor(8);
rectangle(70,40,100,380);
rectangle(545,40,575,380);
setcolor(15);
line(100,40,100,380);
line(70,380,100,380);
line(575,40,575,380);
line(545,380,575,380);

//DRAW two 3D divider lines on both sides
setcolor(8);
line(110, 40, 110, 380);
line(535, 40, 535, 380);
setcolor(15);
line(111, 40, 111, 380);
line(536, 40, 536, 380);

//PRINT 3D text CALENDAR 2002
settextstyle(1, 0, 4);
settextjustify(1,1);
setcolor(15);
outtextxy(mx+2, my - 46, "MY CALCULATER");
setcolor(7);
outtextxy(mx + 1, my - 45, "MY CALCULATER");
setcolor(8);
outtextxy(mx + 2, my - 44, "MY CALCULATER");

//PRINT 3D text 2002
setcolor(15);
outtextxy(mx, my + 10, "2002");
setcolor(7);
outtextxy(mx + 1, my + 11, "2002");
setcolor(8);
outtextxy(mx + 2, my + 12, "2002");

//PRINT copyright notice
settextstyle(2, 0, 5);
setcolor(1);
outtextxy(mx + 1, my + 85, "Copyright 2002 by KP Creations");

getch(); //PAUSE for a while
}

/*********************************************************************/
/*                                                                   */
/*               This function makes the claculating screen          */
/*                                                                   */
/*********************************************************************/

 void screen(int x1, int y1, int x2, int y2)
 {
   setlinestyle(0,0,1);
   setfillstyle(SOLID_FILL, 8);
   bar(x1, y1, x2, y2);
   setfillstyle(SOLID_FILL, BLACK);
   bar(x1+1, y1+1, x2-1, y2-1);



   settextjustify(CENTER_TEXT, CENTER_TEXT);
  setcolor(15);
       line(x1+1, y1+1, x1+1, y2-1);
       line(x1+1, y1+1, x2-1, y1+1);
       line(x1+2, y1+2, x1+2, y2-2);
       line(x1+2, y1+2, x2-2, y1+2);
       setcolor(8);
       line(x1+1, y2-1, x2-1, y2-1);
       line(x2-1, y1+1, x2-1, y2-1);
       line(x1+2, y2-2, x2-2, y2-2);
       line(x2-2, y1+2, x2-2, y2-2);

   }


 /************************************************************************/
 /*                                                                      */
 /*                       Mouse Related Functions                     */
 /*                                                                      */
 /************************************************************************/

void init_mouse()
{
    union REGS iregs, oregs;

    iregs.x.ax = 0;
    int86 (0x33, &iregs, &oregs);

    if (oregs.x.ax == 0)
    {
        cleardevice();
        printf("mouse not installed\n");
        getch();
        exit(1);
    }
       iregs.x.ax = 1;
       int86 (0x33, &iregs ,&oregs);
}
/*************************************************************/

void mouse()
{
    int button,x1,y1;
    union REGS iregs, oregs;

    iregs.x.ax = 3;
    int86 (0x33, &iregs ,&oregs);

    button = oregs.x.bx & 3;
    x1 = oregs.x.cx;
    y1 = oregs.x.dx;

    if(oregs.x.bx & 1)
    {
        X = x1 ; Y = y1;
    }

    if(button == 3)
        exit(0);
}



/*************************************************************/

void hide_mouse()
{
    union REGS ioRegs;
    ioRegs.x.ax=2;
    int86(0x33,&ioRegs,&ioRegs);
}



/*************************************************************/
void show_mouse()
{
    union REGS ioRegs;
    ioRegs.x.ax=1;
    int86(0x33,&ioRegs,&ioRegs);
}

/*************************************************************/
void remove_mouse()
{
    union REGS ioRegs;
    ioRegs.x.ax=0;
    int86(0x33,&ioRegs,&ioRegs);
}


/*************************************************************************/
/*                                                                       */
/*    THIS FUNCTION DRAWS THE CALCULATER ON THE SCREEN                 */
/*                                                                       */
/*************************************************************************/
void    structure()
    {
    init_mouse();
    setbkcolor(0);
    cleardevice();
    hide_mouse();
//**********************************************************
 //   Buttons Making

    front();
    frontpage();
    settextstyle(2,0,4);
    button_3d(50,20,600,400,UNCLICKED,"",1);     // main box
    screen(100,50,545,120);      // screen


    setfillstyle(1,8);
    bar(52,22,598,42);
    button_3d(575,23,595,40,UNCLICKED,"x",0);
    setcolor(0);
    outtextxy(120,30,"Calculater v1.0");
    button_3d(108,140,208,160,UNCLICKED,"DEC",15); // box of decimal
    button_3d(218,140,318,160,UNCLICKED,"OCT",0); // box of octal
    button_3d(328,140,428,160,UNCLICKED,"HEX",0); // box of hexal
    button_3d(438,140,538,160,UNCLICKED,"BIN",0); // box of binary

    button_3d(350,205,380,225,UNCLICKED,"7",0);  // Box Of 7
    button_3d(390,205,420,225,UNCLICKED,"8",0);  // Box Of 8
    button_3d(430,205,460,225,UNCLICKED,"9",0);  // Box Of 9

    button_3d(350,230,380,250,UNCLICKED,"4",0);   // Box Of 4
    button_3d(390,230,420,250,UNCLICKED,"5",0);   // Box Of 5
    button_3d(430,230,460,250,UNCLICKED,"6",0);   // Box Of 6

    button_3d(480,230,510,250,UNCLICKED,"*",0);   // Box Of *
    button_3d(515,230,545,250,UNCLICKED,"/",0);   // Box Of \
    button_3d(480,205,510,225,UNCLICKED,"AC",4);    //Box Of AllClear (AC)
    button_3d(515,205,545,225,UNCLICKED,"CE",4);    //Box Of Clear (C)

    button_3d(350,255,380,275,UNCLICKED,"1",0);   // Box Of 1
    button_3d(390,255,420,275,UNCLICKED,"2",0);   // Box Of 2
    button_3d(430,255,460,275,UNCLICKED,"3",0);   // Box Of 3

    button_3d(350,280,380,300,UNCLICKED,"0",0);   // Box Of Zero (0)
    button_3d(390,280,420,300,UNCLICKED,".",0);   // Box Of Period (.)
    button_3d(430,280,460,300,UNCLICKED,"pi",0); // Box Of PhiFunction

    button_3d(480,255,510,275,UNCLICKED,"-",0);   //  Box Of -
    button_3d(515,255,545,275,UNCLICKED,"+",0);   //  Box Of +
    button_3d(350,305,460,325,UNCLICKED,"=",0);   // Box Of Equality
    button_3d(480,305,545,325,UNCLICKED,"shift",BLUE);   // Box Of shift

    button_3d(480,280,510,300,UNCLICKED,"sqrt",0);     //Box of x^n
    button_3d(515,280,545,300,UNCLICKED,"inv",0);      //box of 1/x

    button_3d(100,205,150,230,UNCLICKED,"Sin",0);      // Box OfSin Function
    button_3d(160,205,210,230,UNCLICKED,"Cos",0);     // Box Of CosFunction
    button_3d(220,205,270,230,UNCLICKED,"Tan",0);      // Box Of Tan Function


    button_3d(100,250,150,275,UNCLICKED,"sin^-1",0);    // Box Of sin^-1
    button_3d(160,250,210,275,UNCLICKED,"cos^-1",0);    // Box Of cos^-1
    button_3d(220,250,270,275,UNCLICKED,"tan^-1",0);    // Box Of tan^-1

    button_3d(100,300,150,325,UNCLICKED,"ln",0);    // Box Of ln
    settextjustify(CENTER_TEXT,CENTER_TEXT);
    setcolor(BLUE);
    settextstyle(2,0,4);
    outtextxy(125,290,"e");
    outtextxy(185,290,"10^x");
    outtextxy(245,290,"x^3");
    button_3d(160,300,210,325,UNCLICKED,"log",0);    // Box Of log
    button_3d(220,300,270,325,UNCLICKED,"x^2",0);    // Box Of x^2

    button_3d(100,350,150,370,UNCLICKED,"deg",15);
    button_3d(160,350,210,370,UNCLICKED,"rad",0);
    button_3d(220,350,270,370,UNCLICKED,"gra",0);
    button_3d(480,350,545,370,UNCLICKED,"Off",4);


    button_3d(350,350,380,370,UNCLICKED,"M+",0);
    button_3d(390,350,420,370,UNCLICKED,"M-",0);
    button_3d(430,350,460,370,UNCLICKED,"MR",0);


}

/*********************************************************/
/*                                                       */
/*            Main starts             */
/*                                                       */
/*********************************************************/
void main()
{

 clrscr();
 double y=0,z=0,pnt,pnt1=0,x=0,r=0;

 int gdriver = DETECT, gmode, errorcode;
 int i;
 initgraph(&gdriver, &gmode, "c:\\tc\\bgi");
 midx=getmaxx()/2;midy=getmaxy()/2;
 structure();
 gotoxy(row,col);
 printf("\t\t\t\t\t");
 gotoxy(row,col);
 printf("0");
 mem=(float*)malloc(y*sizeof(float));
 while( ch!=27&&ch1!=27)   //While Escape is not pressed
 {                                      //and if base is not 10
  pnt1=0;//no doubleing point entered Yet
  ch2='0';
//  for(int a=0;ch!=27;a++)//a indicates whether a no. has been entered or not
  while(ch2!=27)
  //a=0 means that no no. has been entered yet
  {
  if(bflagp!='u')
       {
     //gotoxy(row,col);
     dummy=input();
     if(dummy!='o')
     {
     gotoxy(row,col);
     printf("The trail version does not support this feature");
     input();
     gotoxy(row,col);
     printf("\t\t\t\t\t\t");
    // ch='0';
     }
      y=0;z=0;ch='0';
     gotoxy(row,col);
     printf("\t\t\t\t\t\t");
     gotoxy(row,col);
     printf("0");

    // bflagp='u';
       }


   ch=input();
   if(ch=='>'||ch=='<'||ch=='?')
   { sflag=0;
    if(ch=='>')   //M+
    *mem+=y;
    if(ch=='<')   //M-
    *mem-=y;
    if(ch=='?')    //MR
    {
    y=*mem;
    gotoxy(row,col);
    printf("\t\t\t\t\t\t");
    gotoxy(row,col);
    printf("%g",y);
    }
    if(*mem==0)
    mflag=0;
    if(*mem!=0)
    mflag=1;
   }
   if(mflag==0)
   {
   gotoxy(row,7);

   printf(" ");

   }
   if(mflag!=0)
   {
   gotoxy(row,7);

   printf("M");
   }
   gotoxy(row,col);

   if(ch=='a')
   {     sflag=0;
     y=0;
     gotoxy(row,col);
     printf("\t\t\t\t\t");
     gotoxy(row,col);
     printf("0");
   }

   if(ch=='o')
    //for clearing the screen of the calculater
       {
       sflag=0;
       y=0;z=0;
       gotoxy(row,col);
       printf("\t\t\t\t    ");
       gotoxy(row,col);
       printf("0");
       gotoxy(row,col);
       break;
       }

   if(ch=='q')
     {
       sflag=0;
       y=sqrt(y);
       gotoxy(row,col);
       printf("\t\t\t\t    ");
       gotoxy(row,col);
       printf("%g",y);
     }
   if(ch=='m')
   {
    sflag=0;
    y=1/y;
    gotoxy(row,col);
       printf("\t\t\t\t    ");
       gotoxy(row,col);
       printf("%g",y);
     }
   if(ch=='+'||ch=='-'||ch=='/'||ch=='\\'||ch=='='||ch=='*')
       {
       sflag=0;
       break;
       }
   if(ch=='.') //case for a decimal point
       {
       sflag=0;
       if(pnt1==0) //ie no decimal has been entered yet
    {
     gotoxy(row,col);
     printf("\t\t\t\t    ");//         double
     gotoxy(row,col);
     printf("%g.",y);
     pnt1=.1;   //ie one decimal point no has been entered
     continue;  //go back to the begining and get the next number
    }
       else     //decimal point has alredy been entered and thus no change in the screen
    {
     sflag=0;
     continue; //go back to the begining
    }
       }//out of the '.' condition

 if(pnt1!=0)  //ie we have a doubleing point
  {  sflag=0;
   if(ch<='9'&&ch>='0') //input integer
   {
//   printf("%c",ch);
   x=(double)ch;//type cast the character into double to perforn further operations
   x-=48;      //since character digit indoubleing -48 gives the corresponding ASCII
   x=x*pnt1;   //make it a decimal
   y=x+y;      //add it in result
   pnt1*=.1;   //shift to the second doubleing point
   gotoxy(row,col);
   printf("%g",y);
   gotoxy(row,col);
   continue;   //back to the top
   }
  }
   //if no decimal point number then proceed

  if(ch<='9'&&ch>='0')
  { sflag=0;
   x=(double)ch;     //typecast to double
   x-=48;           //get corresponding ASCII
   y=(y*10)+x;      //add to right of result
   gotoxy(row,col);  //go back to start of the calc screen
   printf("\t\t\t\t    ");  //clear the screen
   gotoxy(row,col);
   printf("%g",y);  //print the number
  }
 if(ch=='u'||ch=='v'||ch=='w'||ch=='x')
  { sflag=0;
  if(bflagp==bflag&&bflag=='u')
  continue;
  else
  basecng(y,pnt1);
  }
if(ch=='d'||ch=='r'||ch=='g')
   {sflag=0;
    y=angle_conv(y);
    gotoxy(row,col);
    printf("\t\t\t\t    ");
    gotoxy(row,col);
    printf("%g",y);
  //  gotoxy(row,col);
 //   printf("%g",y);
  //  continue;
   }
 

if(ch=='s'||ch=='c'||ch=='t'||ch=='i'||ch=='j'||ch=='k'||ch=='n'||ch=='l'||ch=='p'||ch=='h')
  //ie the user opted for a function
  {
    if(ch=='s'||ch=='c'||ch=='t')  //sin  /cos/tan
   { sflag=0;
    if(flag!='r')
    {
    flagp=flag;
    flag='r';
    y=angle_conv(y);
    flag=flagp;
    }
  //  gotoxy(row,col);
  //  printf("%g",y);getch();
    switch(ch)
    {

    case 's':    y=sin(y);  break;
    case 'c':   y=cos(y);  break;
    case 't':      y=tan(y);  break;
    }
   }
   if(ch=='i'||ch=='j'||ch=='k')
    {sflag=0;
    if(flag!='r')
     {
     // flagp=flag;
      flagp='r';
      //y=angle_conv(y);
     }
    switch(ch)
    {
    case 'i':   y=asin(y);  break;
    case 'j':    y=acos(y);  break;
    case 'k':    y=atan(y);  break;
    }
    if(flag!='r')
    y=angle_conv(y);
   }
   else if(ch=='n')
    {
    if(sflag==1)
    {
    y=exp(y);
    sflag=0;
    }
    else
    y=log(y);     //ln
    }
   else if(ch=='l')
    {
    if(sflag==1)
    {
     y=pow(10,y);
     sflag=0;
    }
    else
    y=log10(y);    //log
    }
   else if(ch=='p')
    {
    if(sflag==1)
    {
     y=pow(y,3);
     sflag=0;
    }
    else
    y=pow(y,2);    //square
    }
   else if(ch=='h')
    {
    sflag=0;
    y=PI;          //pi
    }

   gotoxy(row,col);
   printf("\t\t\t\t    ");//Clear the screen
   gotoxy(row,col);
   printf("%g",y);
  }//else condition

}//out of second condition  ie we now have the first no. or function or operater

 for(;ch!=27&&ch1!='='&&ch!='=';)//ie the characters input are not ESCAPE or Equal to

    {
    pnt1=0;z=0;
    if(ch=='o'||ch1=='o')     // For Clear The Screen
    {

    sflag=0;
    y=0;z=0;
    gotoxy(row,col);
    printf("\t\t\t\t    ");
       //    gotoxy(col,row);
    gotoxy(row,col);
    printf("0");
    gotoxy(row,col);
    break;
    }
    for(;ch1!=27;)
    {
    gotoxy(row,col);
      //     printf("%g",z);
       //    z=0;
    ch1=input();

    if(ch1=='>'||ch1=='<'||ch1=='?')
     {
     if(ch1=='>')   //M+
     *mem+=z;
     if(ch1=='<')   //M-
    *mem-=z;
    if(ch1=='?')    //MR
    {
    z=*mem;
    gotoxy(row,col);
    printf("\t\t\t\t    ");
    gotoxy(row,col);
    printf("%g",z);
    }
    if(*mem==0)
    mflag=0;
    if(*mem!=0)
    mflag=1;
   }
   if(mflag==0)
   {
   gotoxy(row,7);
   printf(" ");
   }
   if(mflag!=0)
   {
   gotoxy(row,7);
   printf("M");
   }
   gotoxy(row,col);


    if(ch1=='a')
    {
    z=0;
     gotoxy(row,col);
     printf("\t\t\t\t  ");
     gotoxy(row,col);
     printf("0");
   }

    if(ch=='o'||ch1=='o')     // For Clear The Screen
    {
    y=0;z=0;
    gotoxy(row,col);
    //cout<<"                ";
    printf("\t\t\t\t    ");
    gotoxy(row,col);
    printf("0");
    gotoxy(row,col);
    break;
    }
    if(ch1=='q')
     {
       z=sqrt(z);
       gotoxy(row,col);
       printf("\t\t\t\t    ");
       gotoxy(row,col);
       printf("%g",z);
     }
   if(ch1=='m')
   {
    z=1/z;
    gotoxy(row,col);
       printf("\t\t\t\t    ");
       gotoxy(row,col);
       printf("%g",z);
     }

    if(ch1=='.')
    {
    if(pnt1==0)
    {
    gotoxy(row,col);
    printf("\t\t\t\t    ");
    gotoxy(row,col);
    //cout<<z<<".";
    printf("%g.",z);
    pnt1=.1;
    continue;
    }
    else
    {
    continue;
    }
    }
    if(pnt1!=0)
    {
    if(ch1<='9'&&ch1>='0')
    {
//    printf("%c",ch1);
    x=(double)ch1;
    x-=48;
    x=x*pnt1;
    z=x+z;
    pnt1=pnt1*.1;
    gotoxy(row,col);
    printf("\t\t\t\t    ");
    gotoxy(row,col);
    printf("%g",z);
    continue;
    }
    }

if(ch1=='+'||ch1=='-'||ch1=='*'||ch1=='/'||ch1=='=')
break;
if(ch1>='0'&&ch1<='9')
{
x=(double)ch1;
x=x-48;
gotoxy(row,col);
printf("\t\t\t\t    ");
gotoxy(row,col);
z=(z*10)+x;
printf("%g",z);
}
if(ch=='u')
if(ch=='d'||ch=='r'||ch=='g')
{
 z=angle_conv(z);
 gotoxy(row,col);
 printf("\t\t\t\t    ");
 gotoxy(row,col);
 printf("%g",z);
// continue;
}
if(ch1=='s'||ch1=='c'||ch1=='t'||ch1=='i'||ch1=='j'||ch1=='k'||ch1=='n'||ch1=='l'||ch1=='p'|

|ch1=='h')
  //ie the user opted for a function
  {
   if(ch1=='s'||ch1=='c'||ch1=='t')  //sin
    {
    if(flag!='r')
     {
      flagp=flag;
      flag='r';
      angle_conv(z);
      flag=flagp;
     }
    switch(ch1)
    {
    case 's':   z=sin(z);  break;
    case 'c':    z=cos(z);  break;
    case 't':    z=tan(z);  break;
    }
   }
if(ch1=='i'||ch1=='j'||ch1=='k')
   {
   if(flag!='r')
     {
      flagp='r';
     }
    switch(ch1)
    {
    case 'i':   z=asin(z);  break;
    case 'j':    z=acos(z);  break;
    case 'k':    z=atan(z);  break;
    }
   z=angle_conv(z);
   }
  else if(ch1=='l')
    {
    z=log10(z);    //log
    }
   else if(ch1=='p')
    {
    z=pow(z,2);    //square
    }
   else if(ch1=='h')
    {
    z=PI;          //pi
    }

   gotoxy(row,col);
   printf("\t\t\t\t    ");
   gotoxy(row,col);
   printf("%g",z);
   gotoxy(row,col);
}
}

if(ch1=='+'||ch1=='-'||ch1=='=')
{
y=add(y,z,ch);
if(ch2!='0')
{
y=add(r,y,ch2);
ch2='0';
}
}
else
{
if(ch=='*'||ch=='/')
y=add(y,z,ch);
else
{
ch2=ch;
r=y;
y=z;
}
}
gotoxy(row,col);
printf("\t\t\t\t    ");
gotoxy(row,col);
printf("%g",y);
ch=ch1;
ch1='0';
if(ch=='='||ch1=='=')
break;
}
    if(ch=='o'||ch1=='o')     // For Clear The Screen
    { y=0;z=0;
    gotoxy(row,col);
    printf("\t\t\t\t    ");
    gotoxy(row,col);
    printf("0");
    gotoxy(row,col);
    continue;
    }
    gotoxy(row,col);
    printf("\t\t\t\t    ");
    gotoxy(row,col);
    printf("%g",y);
    z=0;
    }

     //    getch();
    closegraph();
      remove_mouse();
      exit(0);

 }





/*************************************************************/
/*                                 */
/*          This function gets the user's Input             */
/*                                 */
/*************************************************************/

char input()
      {
      X=0;Y=0;
      char ch;
      show_mouse();
      if(bflag!='u')
      {
     button_3d(108,140,208,160,UNCLICKED,"DEC",15);
     button_3d(218,140,318,160,UNCLICKED,"OCT",0);
     button_3d(328,140,428,160,UNCLICKED,"HEX",0);
     button_3d(438,140,538,160,UNCLICKED,"BIN",0);
      bflag='u';
      }
      do
      {
      mouse();
      if (X>=350 && X<=380 && Y>=205 && Y<=225) // Condition For 7
      {
      hide_mouse();
      button_3d(350,205,380,225,CLICKED,"7",0);
      show_mouse();
      delay(250);
      hide_mouse();
      button_3d(350,205,380,225,UNCLICKED,"7",0);
      show_mouse();
      ch='7';
      return ch;
      }


    //**********************************************

     if (X>=390 && X<=420 && Y>=205 && Y<=225) // Condition For 8
     {

     hide_mouse();
     button_3d(390,205,420,225,CLICKED,"8",0);
     show_mouse();
     delay(250);
     hide_mouse();
     button_3d(390,205,420,225,UNCLICKED,"8",0);
     show_mouse();
     ch='8';
     return ch;
     }


    //*****************************************

     if (X>=430 && X<=460 && Y>=205 && Y<=225) // Condition For 9
     {
     hide_mouse();
     button_3d(430,205,460,225,CLICKED,"9",0);
     show_mouse();
     delay(250);
     hide_mouse();
     button_3d(430,205,460,225,UNCLICKED,"9",0);
     show_mouse();
     ch='9';
     return ch;
     }


    //***********************************

     if (X>=350 && X<=380 && Y>=230 && Y<=250) // Condition For 4
     {
     hide_mouse();
     button_3d(350,230,380,250,CLICKED,"4",0);
     show_mouse();
     delay(250);
     hide_mouse();
     button_3d(350,230,380,250,UNCLICKED,"4",0);
     show_mouse();
     ch='4';
     return ch;
     }


    //***********************************

    if (X>=390 && X<=420 && Y>=230 && Y<=250) // Condition For 5
    {
    hide_mouse();
    button_3d(390,230,420,250,CLICKED,"5",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(390,230,420,250,UNCLICKED,"5",0);
    show_mouse();
    ch='5';
    return ch;
    }


    //***********************************

    if (X>=430 && X<=460 && Y>=230 && Y<=250) // Condition For 6
    {
    hide_mouse();
    button_3d(430,230,460,250,CLICKED,"6",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(430,230,460,250,UNCLICKED,"6",0);
    show_mouse();
    ch='6';
    return ch;
    }


    //***********************************

    if (X>=480 && X<=510 && Y>=230 && Y<=250) // Condition For *
    {
    hide_mouse();
    button_3d(480,230,510,250,CLICKED,"*",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(480,230,510,250,UNCLICKED,"*",0);
    show_mouse();
    ch='*';
    return ch;
    }
       //***********************************

    if (X>=515 && X<=545 && Y>=230 && Y<=250) // Condition For /
    {
    hide_mouse();
    button_3d(515,230,545,250,CLICKED,"/",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(515,230,545,250,UNCLICKED,"/",0);
    show_mouse();
    ch='/';
    return ch;
    }

    //***********************************
    int  a,b;
    if (X>=350 && X<=380 && Y>=255 && Y<=275) // Condition For 1
    {
    hide_mouse();
    button_3d(350,255,380,275,CLICKED,"1",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(350,255,380,275,UNCLICKED,"1",0);
    show_mouse();
    ch='1';
    return ch;
    }

       // *************************************

    if (X>=390 && X<=420 && Y>=255 && Y<=275) // Condition For 2
    {
    hide_mouse();
    button_3d(390,255,420,275,CLICKED,"2",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(390,255,420,275,UNCLICKED,"2",0);
    show_mouse();
    ch='2';
    return ch;
    }

       // *************************************

    if (X>=430 && X<=460 && Y>=255 && Y<=275) // Condition For 3
    {
    hide_mouse();
    button_3d(430,255,460,275,CLICKED,"3",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(430,255,460,275,UNCLICKED,"3",0);
    show_mouse();
    ch='3';
    return ch;
    }

       // *************************************

    if (X>=350 && X<=380 && Y>=280 && Y<=300) // Condition For 0
    {
    hide_mouse();
    button_3d(350,280,380,300,CLICKED,"0",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(350,280,380,300,UNCLICKED,"0",0);
    show_mouse();
    ch='0';
    return ch;
    }

       // *************************************

    if (X>=390 && X<=420 && Y>=280 && Y<=300) // Condition For .
    {
    hide_mouse();
    button_3d(390,280,420,300,CLICKED,".",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(390,280,420,300,UNCLICKED,".",0);
    show_mouse();
    ch='.';
    return ch;
    }

    //**********************************************

    if (X>=430 && X<=460 && Y>=280 && Y<=300) // Condition For pi
    {
    hide_mouse();
    button_3d(430,280,460,300,CLICKED,"pi",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(430,280,460,300,UNCLICKED,"pi",0);
    show_mouse();
    ch='h';
    return ch;
    }

     //***********************************************

    if (X>=480 && X<=510 && Y>=255 && Y<=275) // Condition For -
    {
    hide_mouse();
    button_3d(480,255,510,275,CLICKED,"-",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(480,255,510,275,UNCLICKED,"-",0);
    show_mouse();
    ch='-';
    return ch;
    }

    //**************************************************

    if (X>=515 && X<=545 && Y>=255 && Y<=275) // Condition For +
    {
    hide_mouse();
    button_3d(515,255,545,275,CLICKED,"+",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(515,255,545,275,UNCLICKED,"+",0);
    show_mouse();
    ch='+';
    return ch;
    }

    //*****************************************************

    if (X>=350 && X<=460 && Y>=305 && Y<=325) // Condition For =
    {
    hide_mouse();
    button_3d(350,305,460,325,CLICKED,"=",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(350,305,460,325,UNCLICKED,"=",0);
    show_mouse();
    ch='=';
    return ch;
    }

    //*****************************************************

    if (X>=480 && X<=545 && Y>=305 && Y<=325) // Condition For shift
    {
    hide_mouse();
    button_3d(480,305,545,325,CLICKED,"shift",BLUE);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(480,305,545,325,UNCLICKED,"shift",BLUE);
    show_mouse();
    ch='~';
    sflag=1;
    return ch;
    }


    //*************************************

    if (X>=480 && X<=510 && Y>=205 && Y<=225) // Condition For AC
    {
    hide_mouse();
    button_3d(480,205,510,225,CLICKED,"AC",4);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(480,205,510,225,UNCLICKED,"AC",4);
    show_mouse();
    ch='o';
    return ch;
    }
    /********************C*/
    if (X>=515 && X<=545 && Y>=205 && Y<=225) // Condition For C
    {
    hide_mouse();
    button_3d(515,205,545,225,CLICKED,"CE",4);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(515,205,545,225,UNCLICKED,"CE",4);
    show_mouse();
    ch='a';
    return ch;
    }

      // ****************************************

    if (X>=100 && X<=150 && Y>=205 && Y<=230) // Condition For Sin
    {
    hide_mouse();
    button_3d(100,205,150,230,CLICKED,"Sin",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(100,205,150,230,UNCLICKED,"Sin",0);
    show_mouse();
    ch='s';
    return ch;
    }

    //***********************************

    if (X>=160 && X<=210 && Y>=205 && Y<=230) // Condition For Cos
    {
    hide_mouse();
    button_3d(160,205,210,230,CLICKED,"Cos",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(160,205,210,230,UNCLICKED,"Cos",0);
    show_mouse();
    ch='c';
    return ch;
    }

     //***********************************

    if(X>=515&&X<=545&&Y>=280&&Y<=300)     //inverse
     {
    hide_mouse();
    button_3d(515,280,545,300,CLICKED,"inv",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(515,280,545,300,UNCLICKED,"inv",0);
    show_mouse();
    ch='m';
    return ch;
    }


    if (X>=220 && X<=270 && Y>=205 && Y<=230) // Condition For Tan
    {
    hide_mouse();
    button_3d(220,205,270,230,CLICKED,"Tan",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(220,205,270,230,UNCLICKED,"Tan",0);
    show_mouse();
    ch='t';
    return ch;
    }

    //***********************************  */


    if (X>=100 && X<=150 && Y>=250 && Y<=275) // Condition For sin^-1
    {
    hide_mouse();
    button_3d(100,250,150,275,CLICKED,"sin^-1",0);
    show_mouse();
    delay(150);
    hide_mouse();
    button_3d(100,250,150,275,UNCLICKED,"sin^-1",0);
    show_mouse();
    ch='i';
    return ch;
    }
            //**************************

    if (X>=160 && X<=210 && Y>=250 && Y<=275) // Condition For cos^-1
    {
    hide_mouse();
    button_3d(160,250,210,275,CLICKED,"cos^-1",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(160,250,210,275,UNCLICKED,"cos^-1",0);
    show_mouse();
    ch='j';
    return ch;
    }
            //**************************

    if (X>=430 && X<=460 && Y>=350 && Y<=370) // Condition For MR
    {
    hide_mouse();
    button_3d(430,350,460,370,CLICKED,"MR",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(430,350,460,370,UNCLICKED,"MR",0);
    show_mouse();
    ch='?';
    return ch;
    }
    if (X>=390 && X<=420 && Y>=350 && Y<=370) // Condition For M-
    {
    hide_mouse();
    button_3d(390,350,420,370,CLICKED,"M-",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(390,350,420,370,UNCLICKED,"M-",0);
    show_mouse();
    ch='<';
    return ch;
    }
    if (X>=350 && X<=380 && Y>=350 && Y<=370) // Condition For M+
    {
    hide_mouse();
    button_3d(350,350,380,370,CLICKED,"M+",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(350,350,380,370,UNCLICKED,"M+",0);
    show_mouse();
    ch='>';
    return ch;
    }

    if (X>=220 && X<=270 && Y>=250 && Y<=275) // Condition For tan^-1
    {
    hide_mouse();
    button_3d(220,250,270,275,CLICKED,"tan^-1",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(220,250,270,275,UNCLICKED,"tan^-1",0);
    show_mouse();
    ch='k';
    return ch;
    }
            //**************************


    if (X>=100 && X<=150 && Y>=300 && Y<=325) // Condition For ln
    {
    hide_mouse();
    button_3d(100,300,150,325,CLICKED,"ln",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(100,300,150,325,UNCLICKED,"ln",0);
    show_mouse();
    ch='n';
    return ch;
    }
            //**************************

    if (X>=160 && X<=210 && Y>=300 && Y<=325) // Condition For log
    {
    hide_mouse();
    button_3d(160,300,210,325,CLICKED,"log",0);
    show_mouse();
    delay(150);
    hide_mouse();
    button_3d(160,300,210,325,UNCLICKED,"log",0);
    show_mouse();
    ch='l';
    return ch;
    }
            //**************************

    if (X>=220 && X<=270 && Y>=300 && Y<=325) // Condition For X^2
    {
    hide_mouse();
    button_3d(220,300,270,325,CLICKED,"x^2",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(220,300,270,325,UNCLICKED,"x^2",0);
    show_mouse();
    ch='p';
    return ch;
    }
    if (X>=100 && X<=150 && Y>=350 && Y<=370) // Condition For deg
    {
    hide_mouse();
    button_3d(100,350,150,370,CLICKED,"deg",15);
    button_3d(160,350,210,370,UNCLICKED,"rad",0);
    button_3d(220,350,270,370,UNCLICKED,"gra",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(100,350,150,370,UNCLICKED,"deg",15);
    show_mouse();
    ch='d';
    flagp=flag;
    flag=ch;
    return ch;
    }        //**************************
    if (X>=160 && X<=210 && Y>=350 && Y<=370) // Condition For rad
        {
    hide_mouse();
    button_3d(100,350,150,370,UNCLICKED,"deg",0);
    button_3d(160,350,210,370,CLICKED,"rad",15);
    button_3d(220,350,270,370,UNCLICKED,"gra",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(160,350,210,370,UNCLICKED,"rad",15);
    show_mouse();
    ch='r';
    flagp=flag;
    flag=ch;

    return ch;
    }
    if (X>=220 && X<=270 && Y>=350 && Y<=370) // Condition For gra
    {
    hide_mouse();
    button_3d(100,350,150,370,UNCLICKED,"deg",0);
    button_3d(160,350,210,370,UNCLICKED,"rad",0);
    button_3d(220,350,270,370,CLICKED,"gra",15);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(220,350,270,370,UNCLICKED,"gra",15);
    show_mouse();
    ch='g';
    flagp=flag;
    flag=ch;
    return ch;

    }
    if ((X>=480 && X<=545 &&Y>=350 &&Y <=370)||(X>=575&&X<=595&&Y>=23&&Y<=40))   //OFF
    {
    free(mem);
    exit(0);
    }
    if (X>=108 && X<=208 && Y>=140 && Y<=160) // Condition For dec
    {
    hide_mouse();
    button_3d(108,140,208,160,CLICKED,"DEC",15);
    button_3d(218,140,318,160,UNCLICKED,"OCT",0);
    button_3d(328,140,428,160,UNCLICKED,"HEX",0);
    button_3d(438,140,538,160,UNCLICKED,"BIN",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(108,140,208,160,UNCLICKED,"DEC",15);
    show_mouse();
    ch='u';
    bflagp=bflag;
    bflag=ch;
    return ch;
    }
    if (X>=218 && X<=318 && Y>=140 && Y<=160) // Condition For oct
    {
    hide_mouse();
    button_3d(108,140,208,160,UNCLICKED,"DEC",0);
    button_3d(218,140,318,160,CLICKED,"OCT",15);
    button_3d(328,140,428,160,UNCLICKED,"HEX",0);
    button_3d(438,140,538,160,UNCLICKED,"BIN",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(218,140,318,160,UNCLICKED,"OCT",15);
    show_mouse();
    ch='v';
    bflagp=bflag;
    bflag=ch;
    return ch;
    }
    if (X>=328 && X<=428 && Y>=140 && Y<=160) // Condition For hex
    {
    hide_mouse();
    button_3d(108,140,208,160,UNCLICKED,"DEC",0);
    button_3d(218,140,318,160,UNCLICKED,"OCT",0);
    button_3d(328,140,428,160,CLICKED,"HEX",15);
    button_3d(438,140,538,160,UNCLICKED,"BIN",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(328,140,428,160,UNCLICKED,"HEX",15);
    show_mouse();
    ch='w';
    bflagp=bflag;
    bflag=ch;
    return ch;
       }
       if (X>=438 && X<=538 && Y>=140 && Y<=160) // Condition For dec
    {
    hide_mouse();
    button_3d(108,140,208,160,UNCLICKED,"DEC",0);
    button_3d(218,140,318,160,UNCLICKED,"OCT",0);
    button_3d(328,140,428,160,UNCLICKED,"HEX",0);
    button_3d(438,140,538,160,CLICKED,"BIN",15);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(438,140,538,160,UNCLICKED,"BIN",15);
    show_mouse();
    ch='x';
    bflagp=bflag;
    bflag=ch;
    return ch;
    }
    if(X>=480&&X<=510&&Y>=280&&Y<=300)
    {
    hide_mouse();
    button_3d(480,280,510,300,CLICKED,"sqrt",0);
    show_mouse();
    delay(250);
    hide_mouse();
    button_3d(480,280,510,300,UNCLICKED,"sqrt",0);
    show_mouse();
    ch='q';
    return ch;
    }

    }while(kbhit() == 0);
    ch=getch();
    return ch;
    }

/*************************************************************************/
/*                                     */
/*        This function performs the Calculations             */
/*                                     */
/*************************************************************************/
 double add(double x,double y,char ch)
{
    switch(ch)
    {
    case '+':
    y=x+y;
    break;
    case '-':
    y=x-y;
    break;
    case '*':
    y=x*y;
    break;
    case '/':
    y=x/y;
    }
    return y;
}

double  angle_conv(double no)
{
 if(flagp=='d')
 {
  if(flag=='r')
  {
   no=no*PI/180;
  }
  if(flag=='g')
  {
  no=no*1.1111111;
  }
 }
else if(flagp=='r')
 {
  if(flag=='d')
  {
  no=no*180/PI;
  }
  if(flag=='g')
  {
  no=no*180/PI*1.1111111;
  }
 }
else if(flagp=='g')
 {
  if(flag=='r')
  {
  no=no/(180*1.1111111)*PI;
  }
  if(flag=='d')
  {
  no=no/1.1111111;
  }
 }
 return(no);
}


 void basecng(double y,double pnt1)
{
 char str[17];
 if(pnt1!=0)
 {
  gotoxy(row,col);
  printf("The trial version does not support this feature");
  getch();
  bflag='u';
  bflagp='0';
   main();
 }
 if(bflagp!='u')
 {
  gotoxy(row,col);
  printf("The trial version does not support this feature ");
  getch();
 bflagp='0';
 bflag='u';
  main();
 }
 switch(bflag)
 {
 case 'v':
 itoa(y,str,8);
 gotoxy(row,col);
 printf("\t\t\t\t    ");
 gotoxy(row,col);
 printf("%s",str);
 bflagp='0';
 break;

 case 'w':
 itoa(y,str,16);
 gotoxy(row,col);
 printf("\t\t\t\t    ");
 gotoxy(row,col);
 printf("%s",str);
 bflagp='0';
// getch();
 break;

 case 'x':
 itoa(y,str,2);
 gotoxy(row,col);
 printf("\t\t\t\t    ");
 gotoxy(row,col);
 printf("%s",str);
// getch();
 bflagp='0';
 break;
 }
bflag='u';
}

how to convert string to ASCII in c language | CTechnotips

Program to convert string into ASCII values in c programming language:

#include<stdio.h>

void main(){

    char str[100];
    int i=0;

    printf("Enter any string: ");
    scanf("%s",str);

    printf("ASCII values of each characters of given string: ");

    while(str[i])
    {
        printf("%d ",str[i++]);
    }
       
    getch();
}

Output:

Enter any string: ctechnotips.blogspot.com
ASCII values of each characters of given string: 99 116 101 99 104 110 111 116 105 112 115 46 98 108 111 103 115 112 111 116 46 99 111 109

how to copy string without using strcpy in c language | CTechnotips

Copy String without using strcpy in c programming language.

#include<stdio.h>

void stringCopy(char[],char[]);

void main(){

    char str1[100],str2[100];

    printf("Enter any string: ");
    scanf("%s",str1);

    stringCopy(str1,str2);

    printf("After copying: %s",str2);

    getch();
}

void stringCopy(char str1[],char str2[]){

    int i=0;

    while(str1[i]!='\0')
    {
        str2[i] = str1[i];
        i++;
    }

    str2[i]='\0';
}

Output:

Enter any string: ctechnotips.blogspot.com
After copying: ctechnotips.blogspot.com

how to compare two strings in c language without using strcmp | CTechnotips

C program to compare two strings without using string functions.

#include<stdio.h>

int stringCompare(char[],char[]);

void main(){

        char str1[100],str2[100];
        int compare;

        printf("Enter first string: ");
        scanf("%s",str1);

        printf("Enter second string: ");
        scanf("%s",str2);

        compare = stringCompare(str1,str2);

        if(compare == 1)
        {
         printf("Both strings are equal.");
        }
        else
        {
            printf("Both strings are not equal");
        }
        getch();
}

int stringCompare(char str1[],char str2[]){

        int i=0,flag=0;

        while(str1[i]!='\0' && str2[i]!='\0')
       {

            if(str1[i]!=str2[i])
            {
                     flag=1;
                     break;
             }
             i++;
        }

        if (flag==0 && str1[i]=='\0' && str2[i]=='\0')
       {
             return 1;
       }
        else
       {
             return 0;
       }
}

Output:

Enter first string: ctechnotips.blogspot.com
Enter second string: ctechnotips.blogspot.com
Both strings are equal.

string concatenation in c language without using strcat | CTechnotips

String concatenation in c without using string functions

#include<stdio.h>

void stringConcat(char[],char[]);

int main(){

    char str1[100],str2[100];

    int compare;

    printf("Enter first string: ");

    scanf("%s",str1);

    printf("Enter second string: ");

    scanf("%s",str2);

    stringConcat(str1,str2);

    printf("String after concatenation: %s",str1);

    return 0;

}

void stringConcat(char str1[],char str2[]){

    int i=0,j=0;

   

   

    while(str1[i]!='\0'){

         i++;

    }

    while(str2[j]!='\0'){

         str1[i] = str2[j];   

         i++;

         j++;

    }

    str1[i] = '\0';

}

Sample output:

Enter first string: ctechnotips

Enter second string: @blogspot.com

String after concatenation: ctechnotips@blogspot.com