1646: 蓝桥杯算法训练VIP-比较字符串（ｃ++）

参考代码:

#include<bits/stdc++.h>

using namespace std;

int main() {

    string a,b;

    cin>>a>>b;

    if(a==b)cout<<0;

    else

            for(int i=0; i<min(a.size(),b.size()); i++) {

                if(a[i]==b[i])continue;

                 else {

                 cout<<a[i]-b[i];

                 break;

                        }

                }        

return 0;

}