231223 H-Index

public int solution(int[] citations) {
	Arrays.sort(citations);
	int n = citations.length;
	
	for (int i = 0; i < n; i++) {
		int h = n - i;
		int minCitations = Math.min(citations[i], h);
		
		if (minCitations >= h) {
			return h;
		}
	}

	return 0;
}

출처:https://school.programmers.co.kr/learn/courses/30/lessons/42747