#include <stdio.h>

int strrcmp(char *str, char *sub){
    while(*str!='\0'){
        if(*str==*sub){
            *str++;
            *sub++;
        }
        else{
            return 1;
        }
    }
    return 0;
}

int main() {
    char str[10] = "adarsh";
    char sub[10] = "adarsh";
    
    int res = strrcmp(str,sub);
    if(res==0){
        printf("strings are equal");
    }
    else{
        printf("strings are diff");
    }
}

#if 0
int strcmp(const char *s1, const char *s2) {
    while (*s1 == *s2) {
        if (*s1 == '\0')
            return 0;
        s1++;
        s2++;
    }
    return (*s1 > *s2) ? 1 : -1;
}

int main() {
    char a[10]="adarsh";
    char b[10]="adarsh";
    
    strcmp(b,a);
    printf("%d",strcmp(b,a));
}
#endif