2.Leetcode327: Count of Range Sum 范围和个数问题 3.Leetcode979 : Distribute Coins in Binary Tree 二叉树均匀分配硬币问题 4.Leetcode547: Friend Circles 朋友圈问题 5.线程安全的生产者消费者四种实现方法 6.Leetcode823 : 因子二叉树问题 7.Leetcode7 : Reverse Integer 整数反转问题 8.Leet...
[LeetCode] 547. Friend Circles 朋友圈 本题可以套用和[LeetCode] 200. Number of Islands 岛屿的数量与[LeetCode 695] Max Area of Island 岛的最大面积一样的dfs模版,不同的是DFS的遍历路径不同,本题 采用的是类似十字遍历方式,具体见如下代码。 1/*2* @Descripttion:3* @version:4* @Author: wangx...
对于某个人我们可以先遍历其好友如果他有好友然后再遍历好友的好友一直继续下去直到不能继续找到好友为止可以找出一个朋友圈内的所有好友 (BFS持续更新)leetcode547.FriendCircles There are N students in a class. Some of them are friends, while some are not. Their friendship is transitive in nature. For ...
1、题目链接 https://leetcode.com/problems/friend-circles/ 2、解题思路 这道题的意思是说给你一个二维数组M,这个二维数组表示两两之间有没有存在朋友关系,比如M[i][j] = 1 的话,就表示i和j是朋友关系,而且这种关系是可以传递的,比如i和j是朋友关系,j和k也是朋友关系,那么可以理解为i和k也是朋友关系;...
leetcode 547. Friend Circles 寻找图的环的数量 + 典型的深度优先遍历DFS,ThereareNstudentsinaclass.Someofthature.Forexample,ifAisadirectfriendofB,andBisadirectfriendofC,then...
LeetCode 0547. Friend Circles朋友圈【Medium】【Python】【DFS】 Problem LeetCode There areNstudents in a class. Some of them are friends, while some are not. Their friendship is transitive in nature. For example, if A is adirectfriend of B, and B is adirectfriend of C, then A is an...
friend-circles.py friends-of-appropriate-ages.py frog-jump.py fruit-into-baskets.py game-of-life.py gas-station.py generalized-abbreviation.py generate-parentheses.py generate-random-point-in-a-circle.py global-and-local-inversions.py goat-latin.py graph-valid-tree.py gray-code.py group-anagr...
Loading...leetcode.com/problems/friend-circles/ 方法一,深度优先搜索 class Solution { public: int findCircleNum(vector<vector<int>>& M) { int N=M.size(); int total=0; if(N==0) return 0; for(int i=0; i<N; ++i){ if (M[i][i]!= -1){ dfs(M, i, N); // 从结点i...
// LeetCode #298 medium // 547. Friend Circles // Runtime: 24 ms, faster than 49.05% of C++ online submissions for Friend Circles. // Memory Usage: 10.5 MB, less than 100.00% of C++ online submissions for Friend Circles. class Solution { public: int findCircleNum(vector<vector<int>...
Friend Circles friends.push(i); } } } } }; Reference https://leetcode.com/problems/friend-circles 43510 Friend Link Card Beautify Butterfly 的友链太过单调了。加上之前正好移植了 Volantis 的一堆外挂标签样式,突发奇想用 Site-card 来写友链,效果相当理想。