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Problem406.java

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class Problem406 {

public static void main(String[] args) {

}

public int[][] reconstructQueue(int[][] people) {

int[][] out = new int[people.length][2];

ArrayList<Pair> inp = new ArrayList<>();

ArrayList<Pair> res = new ArrayList<>();

int j = 0;

Arrays.sort(people, (o1, o2) -> {

if (o1[0] == o2[0]) {

return o1[1] - o2[1];

}

return o2[0] - o1[0];

});

for (int[] p : people) {

inp.add(new Pair(p[0], p[1]));

}

for (Pair e : inp) {

res.add(e.pos, e);

}

for (Pair e : res) {

out[j][0] = e.height;

out[j++][1] = e.pos;

}

return out;

}

}

class Pair {

int height;

int pos;

public Pair(int height, int pos) {

this.height = height;

this.pos = pos;

}

}