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  • 1828. 统计一个圆中点的数目

    https://leetcode-cn.com/problems/queries-on-number-of-points-inside-a-circle/

    class Solution {
        public int[] countPoints(int[][] points, int[][] queries) {
            int[] result = new int[queries.length];
            for(int countPoints = 0;countPoints < points.length; countPoints++)
            {
                for(int countQueries = 0;countQueries < queries.length; countQueries++)
                {
                    if(inCircle(points[countPoints], queries[countQueries])) {
                        result[countQueries]++;
                    }
                }
            }
            return result;
        }
    
        private boolean inCircle(int[] points,int[] queries) {
            int x = points[0]-queries[0];
            int y = points[1]-queries[1];
            double d = Math.sqrt(x * x + y * y);
            return d <= queries[2];
        }
    }
    

      

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  • 原文地址:https://www.cnblogs.com/longlyseul/p/15308085.html
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