[프로그래머스]Lv.2 H-Index C#

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

프로그래머스

소스코드

using System;
using System.Linq;
public class Solution
{
    public int solution(int[] citations)
    {
        int answer = 0;

        citations = citations.OrderByDescending(o => o).ToArray();

        for (int i = 0; i < citations.Length; i++)
        {
            if (i + 1 <= citations[i])
                answer++;
        }
        return answer;
    }
}