leetcode 447. Number of Boomerangs解题笔记-CSDN博客

网站介绍:文章浏览阅读540次。1. 题目描述https://leetcode.com/problems/number-of-boomerangs/#/description Given n points in the plane that are all pairwise distinct, a “boomerang” is a tuple of points (i, j, k) such that the distance