//
// Created by 王东梁 on 2023/9/17.
//
#include<stdio.h>
#include <string.h>
int mycmp(const char* s1,const char* s2){
// int idx=0;
// while(s1[idx]==s2[idx]&&s1[idx]!='\0'){
// idx++;
// }
// return s1[idx]-s2[idx];
while (*s1==*s2&&*s1!='\0'){
s1++;
s2++;
}
return *s1-*s2;
}
int main() {
char s1[]="abc";
char s2[]="abc1111";
printf("%d\n",mycmp(s1,s2));
return 0;
}