[C++] 프로그래머스 의상

https://school.programmers.co.kr/learn/courses/30/lessons/42578

프로그래머스

#include <string>
#include <vector>
#include <iostream>
#include <unordered_map>

using namespace std;

int solution(vector<vector<string>> clothes) {
    int answer = 1;
    unordered_map<string, int> type;
    for(int i = 0; i < clothes.size(); i++){
        type[clothes[i][1]]++;
    }
    for(auto a : type){
        answer *= a.second+1;
    }
    return --answer;
}