题解 | 删除字符串中出现次数最少的字符

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

int main() 
{
    string input;
    while(cin >> input){
        vector<int> vec(26);
        for(char c : input){
            vec[c - 'a']++;
        }

        int min_index = INT_MAX;
        int min = INT_MAX;
        for(size_t i = 0; i < vec.size(); i++){
            if(vec[i] <=  min && vec[i] > 0){
                min = vec[i];
                min_index = i;
            }
        }
        
        for(char c : input){
            if(vec[c - 'a'] == min){
                
                continue;
            }else{
                cout << c;
            }
        }
        cout << endl;
    };
}
// 64 位输出请用 printf("%lld")