Class Solution

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    public final class Solution
    
                        

    973 - K Closest Points to Origin\.

    Medium

    Given an array of points where <code>pointsi = x<sub>i</sub>, y<sub>i</sub></code> represents a point on the X-Y plane and an integer k, return the k closest points to the origin (0, 0).

    The distance between two points on the X-Y plane is the Euclidean distance (i.e., <code>√(x<sub>1</sub> - x<sub>2</sub>)<sup>2</sup> + (y<sub>1</sub> - y<sub>2</sub>)<sup>2</sup></code>).

    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]

    Explanation: The answer [-2,4,3,3] would also be accepted.

    Constraints:

    • <code>1 <= k <= points.length <= 10<sup>4</sup></code>

    • <code>-10<sup>4</sup>< x<sub>i</sub>, y<sub>i</sub>< 10<sup>4</sup></code>

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
    • Field Summary

      Fields 
      Modifier and Type Field Description
    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()
    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
    • Method Summary

      Modifier and Type Method Description
      final Array<IntArray> kClosest(Array<IntArray> points, Integer k)
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait