java.lang.Object
g1401_1500.s1453_maximum_number_of_darts_inside_of_a_circular_dartboard.Solution

public class Solution extends Object
1453 - Maximum Number of Darts Inside of a Circular Dartboard\. Hard Alice is throwing `n` darts on a very large wall. You are given an array `darts` where darts[i] = [xi, yi] is the position of the ith dart that Alice threw on the wall. Bob knows the positions of the `n` darts on the wall. He wants to place a dartboard of radius `r` on the wall so that the maximum number of darts that Alice throws lies on the dartboard. Given the integer `r`, return _the maximum number of darts that can lie on the dartboard_. **Example 1:** ![](https://assets.leetcode.com/uploads/2020/04/29/sample_1_1806.png) **Input:** darts = \[\[-2,0],[2,0],[0,2],[0,-2]], r = 2 **Output:** 4 **Explanation:** Circle dartboard with center in (0,0) and radius = 2 contain all points. **Example 2:** ![](https://assets.leetcode.com/uploads/2020/04/29/sample_2_1806.png) **Input:** darts = \[\[-3,0],[3,0],[2,6],[5,4],[0,9],[7,8]], r = 5 **Output:** 5 **Explanation:** Circle dartboard with center in (0,4) and radius = 5 contain all points except the point (7,8). **Constraints:** * `1 <= darts.length <= 100` * `darts[i].length == 2` * -104 <= xi, yi <= 104 * `1 <= r <= 5000`
  • Constructor Details

    • Solution

      public Solution()
  • Method Details

    • numPoints

      public int numPoints(int[][] points, int r)