咦？每人发题解？那我来发一个🙂

#include <iostream>  
#include <string>  
#include <algorithm>  
  
using namespace std;  
  
int main() {  
    int n;  
    cin >> n;  
  
    string maxPinyin;  
    int maxLength = 0;  
  
    for (int i = 0; i < n; i++) {  
        string pinyin;  
        cin >> pinyin;  
  
        int length = pinyin.length();  
        if (length > maxLength) {  
            maxLength = length;  
            maxPinyin = pinyin;  
        } else if (length == maxLength && pinyin > maxPinyin) {  
            maxPinyin = pinyin;  
        }  
    }  
  
    cout << maxPinyin << endl;  
  
    return 0;  
}

已AC，放心食用！食用完了后记得点赞哦~