[数据结构与算法]贪心之二维数组排序

每日一题ing，今天是个medium题406. 根据身高重建队列

class Solution {
public:
    static bool cmp(const vector<int> a, const vector<int> b) {
        if (a[0] == b[0]) return a[1] < b[1];
        return a[0] > b[0];
    }
    vector<vector<int>> reconstructQueue(vector<vector<int>>& people) {
        sort (people.begin(), people.end(), cmp);
        vector<vector<int>> que;
        for (int i = 0; i < people.size(); i++) {
            int position = people[i][1];
            que.insert(que.begin() + position, people[i]);
        }
        return que;
    }
};