Solved! Leetcode 2361: Minimum Costs Using the Train Line

Feb

5

2023

source: https://leetcode.com/problems/minimum-costs-using-the-train-line/ A train line going through a city has two routes, the regular route and the express route. Both routes go through the same n + 1 stops labeled from 0 to n. Initially, you start on the regular route at stop 0. You are given two 1-indexed integer arrays regular and express, both ...
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Algo · Code · Java

Solved! Leetcode 1626: Best Team With No Conflicts

Feb

1

2023

Table of ContentsBest Team: Problem StatementJavaPython Best Team: Problem Statement You are the manager of a basketball team and your task is to form a best team. For the upcoming tournament, you want to choose the team with the highest overall score. The score of the team is the sum of scores of all the ...
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Algo · Code · Java

Leetcode 1519: Number of Nodes in the Sub-Tree With the Same Label

Jan

12

2023

You are given a tree (i.e., a connected, undirected graph that has no cycles) consisting of n nodes numbered from 0 to n - 1 and exactly n - 1 edges. The root of the tree is the node 0, and each node of the tree has a label which is a lower-case character given in the string labels (i.e., The node with the number i has the label labels[i]). The edges array is given ...
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Algo · Code · Java

Leetcode 797: All Paths From Source to Target

Dec

30

2022

Given a directed acyclic graph (DAG) of n nodes labeled from 0 to n - 1, find all possible paths from node 0 to node n - 1 and return them in any order. The graph is given as follows: graph[i] is a list of all nodes you can visit from node i (i.e., there is a directed edge from node i to node graph[i][j]). https://leetcode.com/problems/all-paths-from-source-to-target/description/ class Solution { public List<List<Integer>> allPathsSourceTarget(int[][] ...
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Algo · Code · Java