题解 | #删除字符串中出现次数最少的字符#

#include <iostream>
#include <bits/stdc++.h>
using namespace std;

int main() {
    string str;
    map<char, int> map_cnt;
    while (cin >> str) {
        int minNum = str.size();
        for (auto c : str) {
            map_cnt[c]++;
        }
        for (auto cnt : map_cnt) {
            minNum = min(minNum, cnt.second);
        }
        for (auto c : str) {
            if(map_cnt[c] == minNum) continue;
            cout << c;
        }
    }
}
// 64 位输出请用 printf("%lld")