[C++] 프로그래머스 폰켓몬

https://school.programmers.co.kr/learn/courses/30/lessons/1845

프로그래머스

#include <vector>
#include <unordered_map>
#include <iostream>
using namespace std;

int solution(vector<int> nums)
{
    int answer = 0;
    unordered_map<int, int> pokemon;
    for (int index : nums){
        pokemon[index]++;
    }
    if (pokemon.size() < nums.size()/2) answer = pokemon.size();
    else answer = nums.size()/2;
    return answer;
}