/
11651.js
49 lines (41 loc) · 1.21 KB
/
11651.js
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const input = require("fs").readFileSync("/dev/stdin").toString().trim().split("\n");
const [, ...nums] = input;
const arr = [];
const mergeSort = (arr) => {
if (arr.length < 2) {
return arr;
}
const mid = Math.floor(arr.length / 2);
const left = arr.slice(0, mid);
const right = arr.slice(mid);
return merge(mergeSort(left), mergeSort(right));
};
const merge = (left, right) => {
let leftIndex = 0;
let rightIndex = 0;
let result = [];
while (leftIndex < left.length && rightIndex < right.length) {
if (left[leftIndex][1] < right[rightIndex][1]) {
result.push(left[leftIndex]);
leftIndex++;
} else if (left[leftIndex][1] === right[rightIndex][1]) {
if (left[leftIndex][0] < right[rightIndex][0]) {
result.push(left[leftIndex]);
leftIndex++;
} else {
result.push(right[rightIndex]);
rightIndex++;
}
} else {
result.push(right[rightIndex]);
rightIndex++;
}
}
return result.concat(left.slice(leftIndex), right.slice(rightIndex));
};
for (let i in nums) {
const [x, y] = nums[i].split(" ").map((v) => Number(v));
arr.push([x, y]);
}
const answer = mergeSort(arr);
console.log(answer.join("\n").replace(/,/g, " "));