原题链接在这里:https://leetcode.com/problems/cheapest-flights-within-k-stops/ 题目: There are n cities connected by m flights. Each fight starts from city u and arrives at v with a price w. Now given all the cities and flights, together with starting city src…
There are n cities connected by m flights. Each fight starts from city u and arrives at v with a price w. Now given all the cities and fights, together with starting city src and the destination dst, your task is to find the cheapest price from src t…
There are n cities connected by m flights. Each fight starts from city u and arrives at v with a price w. Now given all the cities and fights, together with starting city src and the destination dst, your task is to find the cheapest price from src t…
作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 方法一:DFS 方法二:BFS 参考资料 日期 题目地址:https://leetcode.com/problems/cheapest-flights-within-k-stops/description/ 题目描述 There are n cities connected by m flights. Each fight starts from c…
There are n cities connected by m flights. Each fight starts from city u and arrives at v with a price w. Now given all the cities and fights, together with starting city src and the destination dst, your task is to find the cheapest price from src t…
There are n cities connected by m flights. Each fight starts from city u and arrives at v with a price w. Now given all the cities and flights, together with starting city src and the destination dst, your task is to find the cheapest price from src …
There are n cities connected by m flights. Each fight starts from city u and arrives at v with a price w. Now given all the cities and flights, together with starting city src and the destination dst, your task is to find the cheapest price from src …
787. K 站中转内最便宜的航班 有 n 个城市通过 m 个航班连接.每个航班都从城市 u 开始,以价格 w 抵达 v. 现在给定所有的城市和航班,以及出发城市 src 和目的地 dst,你的任务是找到从 src 到 dst 最多经过 k 站中转的最便宜的价格. 如果没有这样的路线,则输出 -1. 示例 1: 输入: n = 3, edges = [[0,1,100],[1,2,100],[0,2,500]] src = 0, dst = 2, k = 1 输出: 200 解释: 城市航班图如…
LeetCode:二叉搜索树中第K小的数[230] 题目描述 给定一个二叉搜索树,编写一个函数 kthSmallest 来查找其中第 k 个最小的元素. 说明:你可以假设 k 总是有效的,1 ≤ k ≤ 二叉搜索树元素个数. 示例 1: 输入: root = [3,1,4,null,2], k = 1 3 / \ 1 4 \   2 输出: 1 示例 2: 输入: root = [5,3,6,2,4,null,null,1], k = 3 5 / \ 3 6 / \ 2 4 / 1 输出: 3…
LeetCode:乘法表中的第K小的数[668] 题目描述 几乎每一个人都用 乘法表.但是你能在乘法表中快速找到第k小的数字吗? 给定高度m .宽度n 的一张 m * n的乘法表,以及正整数k,你需要返回表中第k 小的数字. 例 1: 输入: m = 3, n = 3, k = 5 输出: 3 解释: 乘法表: 1 2 3 2 4 6 3 6 9 第5小的数字是 3 (1, 2, 2, 3, 3). 例 2: 输入: m = 2, n = 3, k = 6 输出: 6 解释: 乘法表: 1 2…