폰켓몬

Java

import java.util.*;
class Solution {
    public int solution(int[] nums) {
        int answer = nums.length / 2;
        
        Set<Integer> set = new HashSet<Integer>();
        
        for(int i : nums)
            set.add(i);
        
        if(set.size() < answer) answer = set.size();
        
        
        
        return answer;
    }
}

Python

import math
def solution(nums):
    answer = math.floor(len(nums)/2)
    s = set(nums);
    if answer > len(s): 
        answer = len(s)
    return answer