Source URL: https://leetcode.com/problems/k-closest-points-to-origin/

We have a list of `points`

on the plane. Find the `K`

closest points to the origin `(0, 0)`

.

(Here, the distance between two points on a plane is the Euclidean distance.)

You may return the answer in any order. The answer is guaranteed to be unique (except for the order that it is in.)

**Example 1:**

**Input: **points = [[1,3],[-2,2]], K = 1
**Output: **[[-2,2]]
**Explanation: **
The distance between (1, 3) and the origin is sqrt(10).
The distance between (-2, 2) and the origin is sqrt(8).
Since sqrt(8) < sqrt(10), (-2, 2) is closer to the origin.
We only want the closest K = 1 points from the origin, so the answer is just [[-2,2]].

**Example 2:**

**Input: **points = [[3,3],[5,-1],[-2,4]], K = 2
**Output: **[[3,3],[-2,4]]
(The answer [[-2,4],[3,3]] would also be accepted.)

**Note:**

`1 <= K <= points.length <= 10000`

`-10000 < points[i][0] < 10000`

`-10000 < points[i][1] < 10000`

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