A. Petya and Strings

#include <iostream>
using namespace std;
int main(){
    string s1,s2;
    cin >> s1 >> s2;
    int cnt1=0,cnt2= 0;
    int l1 = s1.size(),l2 = s2.size();
    for(int i = s1.size() -1;i >= 0;i--){
        if(s1[i] >= 'a' && s1[i] <= 'z') s1[i] -= 'a' - 'A';
    }//没看长度
    for(int i = s2.size()-1;i >= 0;i--){
        if(s2[i] >= 'a' && s2[i] <= 'z') s2[i] -= 'a' - 'A';
    }
    if(s1 > s2) cout << 1 << endl;
    else if(s1 < s2) cout << -1 << endl;//字符串可以直接按照字典序比较，前提是长度相同
    else cout << 0 << endl;
    return 0;
}