c program for insertion sort | CTechnotips

Source code of simple insertion sort implementation using array in ascending order in c programming language

#include<stdio.h>

int main(){

  int i,j,s,temp,a[20];

  printf("Enter total elements: ");

  scanf("%d",&s);

  printf("Enter %d elements: ",s);

  for(i=0;i<s;i++)

      scanf("%d",&a[i]);

  for(i=1;i<s;i++){

      temp=a[i];

      j=i-1;

      while((temp<a[j])&&(j>=0)){

      a[j+1]=a[j];

          j=j-1;

      }

      a[j+1]=temp;

  }

  printf("After sorting: ");

  for(i=0;i<s;i++)

      printf(" %d",a[i]);

  return 0;

}

Output:

Enter total elements: 5

Enter 5 elements: 3 7 9 0 2

After sorting:  0 2 3 7 9