/** * 문제링크 : https://programmers.co.kr/learn/courses/30/lessons/42747?language=java * * 입력예시 * [3, 0, 6, 1, 5] * * 결과예시 * 3 */ import java.util.Arrays; class HIndex { public int solution(int[] citations) { Arrays.sort(citations); int arrayLength = citations.length; for (int i = 0; i < arrayLength; i++) { if (citations[arrayLength - (i+1)] <= i) { return i; } } return arrayLength; } }