406. Queue Reconstruction by Hei

Description

Suppose you have a random list of people standing in a queue. Each person is described by a pair of integers (h, k), where h is the height of the person and k is the number of people in front of this person who have a height greater than or equal to h. Write an algorithm to reconstruct the queue.

Note:

The number of people is less than 1,100.

Example

Input:
[[7,0], [4,4], [7,1], [5,0], [6,1], [5,2]]
Output:
[[5,0], [7,0], [5,2], [6,1], [4,4], [7,1]]

思路
参考 http://blog.csdn.net/myfwjy/article/details/52748518?locati

Code

class Solution {
    public int[][] reconstructQueue(int[][] people) {
        Arrays.sort(people, (new Comparator<int[]>() {
            @Override
            public int compare(int[] o1, int[] o2) {
                if (o1[0] == o2[0]) {
                    return o1[1] - o2[1];
                } else {
                    return o2[0] - o1[0];
                }
            }
        }));
            
        List<int[]> array = new LinkedList<>();
        for (int[] cur : people) {
            // ??
            array.add(cur[1], cur);
        }
        
        return array.toArray(new int[people.length][]);
    }
}