274. H-Index

public class Solution {
    public int hIndex(int[] citations) {
        
        int size=citations.length;
        int answer=0;
        int[] res=new int[size+1];
        //对于res数组进行初始化 
        for(int i=0;i<=size;i++)
            res[i]=0;
        //进行遍历 填充数组
        for(int i=0;i<=size;i++)
        {
            for(int j=0;j<size;j++)
            {
                if(citations[j]>=i)
                    res[i]++;
            }
            if(res[i]>=i)
                answer=i;
        }
        return answer;
        
    }
}