华为笔试题解 | 删除字符串中出现次数最少的字符

#include<iostream>
#include<string>
#include<algorithm>
#include<climits>
using namespace std;

int main(){
    string s;
    while (cin>>s) {
      int min = s.length();
      for(char c:s){
        int cnt = count(s.begin(), s.end(), c);
        if  (cnt <min) 
        min = cnt;
      }
        for (char c:s) {
        if(count(s.begin(), s.end(), c) > min)
       cout<<c;
        }
        cout<<endl;
        }
        return 0;
      }