import java.util.*;class Solution { public int solution(int[] nums) { int answer = 0; int length = nums.length; int []newNums = Arrays.stream(nums).distinct().toArray(); if(newNums.length >= length/2) { answer = length/2; } else { answer = newNums.length; } return answer; }}

import java.util.*;class Solution { public String solution(String[] participant, String[] completion) { String answer = ""; Map map = new HashMap(); for(int i=0; i

import java.util.*;class Solution { static int pM, pS; public String solution(String video_len, String pos, String op_start, String op_end, String[] commands) { String answer = ""; int vM, vS, osM, osS, oeM, oeS; String []tmp = video_len.split(":"); vM = Integer.parseInt(tmp[0]); vS = Integer.parseInt(tmp[1]); tmp = pos.split(":"); p..