Concatenation of two strings using pointer in c programming language
#include<stdio.h>
int main(){
int i=0,j=0;
char *str1,*str2,*str3;
puts("Enter first string");
gets(str1);
puts("Enter second string");
gets(str2);
printf("Before concatenation the strings are\n");
puts(str1);
puts(str2);
while(*str1){
str3[i++]=*str1++;
}
while(*str2){
str3[i++]=*str2++;
}
str3[i]='\0';
printf("After concatenation the strings are\n");
puts(str3);
return 0;
}
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