two strings is given through the keyboard and fid which one is greater , smaller, or equal and also find their difference 2nd method. ( string )

 

#include<stdio.h>

#include<conio.h>

#include<string.h>

main()

{

    char str1[20],str2[20];

    int i=0,flag=0, x=0;

    printf("enter the first string :");

    gets(str1);

    printf("enter the second string :");

    gets(str2);

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

    {

        x = str1[i]-str2[i];

        if(str1[i] != str2[i])

       { 

           flag=1;

           break;

       }

    

     

       else

       i++;

       

    }

    if (flag==0 && str1[i]=='\0' && str2[i]=='\0')

    printf("\n two string are equal and their difference is %d ",x);

    else 

    printf("\n two strings are not aqual and their difference is %d",x);

}   

output :

enter the first string :R enter the second string :r two strings are not aqual and their difference is -32