[프로그래머스] H-Index

import java.util.*;

class Solution {
    public int solution(int[] citations) {
        int answer = 0;
        
        Arrays.sort(citations);
        
        for(int i=citations.length-1; i>=0; i--){
            int minnum = (int)Math.min(citations[i],citations.length-i);
            if(answer<minnum){
                answer =minnum;
            }
        }
        return answer;
    }
}

문제 해석이 헷갈렸다.