LeetCode題目Kth Largest Element in an Array

題目原址：點擊打開鏈接

題目描述：

Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element.

For example,
Given [3,2,1,5,6,4] and k = 2, return 5.

Note:
You may assume k is always valid, 1 ≤ k ≤ array's length.

做法比較簡單，直接利用sort函數，輸出第size-k個元素。

我的代碼：

class Solution {
public:
    int findKthLargest(vector<int>& nums, int k) {
        int a[nums.size()];
        for(int i=0;i<nums.size();i++){
            a[i]=nums[i];
        }
        sort(a,a+nums.size());
        return a[nums.size()-k];
    }
};