Program to implement insertion sort

#include<stdio.h>

#include<conio.h>

void main()

{

      int i,j,s,temp,a[20];

      printf("enter total element:");

      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]);

            getch();

            }