leetcode 274H-index
public int hIndex(int[] citations) { /* 嘮嘮叨叨說了很多 其實找到一個數h，使得數組中至少有h個數大於等於這個數， 其他N-h個數小於這個數，h可能有多個，求最大的那個 */ if (citations.length==0) return 0; //sort方法是將原數組排序，會改變原數組 Arrays.sort(citations); int res = 0; for (int i = citations.length-1; i >=0 ; i--) {if (citations[i]>=citations.length-i) { res++; } else break; } return res; }
leetcode 274H-index
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