two strings is given through the keyboard and fid which one is greater , smaller, or equal and also find their difference . ( string )

 

#include<stdio.h>

#include<conio.h>

#include<string.h>

main()

{

     char a[20],b[20];

     int i,n;

     printf("enter two string  :\n");

     gets(a);

     gets(b);

    i=0;

    while(a[i]==b[i]&& a[i]!='\0')

  {

     i++;

     n = a[i]-b[i];

  } 

    if(a[i]>b[i])

    printf("a[i] is gerater than b[i] and the difference is %d ",n);

    else if (a[i]<b[i])

    printf("a[i] is smaller than b[i]  and the difference is %d",n);

 

    else if (a[i]-b[i]==0)

    printf("a[i]=b[i]  and the difference is %d",n);

}

output :

enter two string : hello hllo a[i] is smaller than b[i] and the difference is -7