[LeetCode] 2785. Sort Vowels in a String Given a 0-indexed string s, permute s to get a new string t such that:All consonants remain in their original places. More formally, if there is an index i with 0 <= i < s.length such that 2023-11-13 #leetcode #java #counting sort #sort #string
[LeetCode] 1334. Find the City With the Smallest Number of Neighbors at a Threshold Distance There are n cities numbered from 0 to n-1. Given the array edges where edges[i] = [fromi, toi, weighti] represents a bidirectional and weighted edge between cities fromi and toi, and given the in 2023-11-13 #leetcode #java #dynamic programming #graph #dijkstra
[LeetCode] 2849. Determine if a Cell Is Reachable at a Given Time You are given four integers sx, sy, fx, fy, and a non-negative integer t. In an infinite 2D grid, you start at the cell (sx, sy). Each second, you must move to any of its adjacent cells. Return true i 2023-11-08 #leetcode #java #math
[LeetCode] 2609. Find the Longest Balanced Substring of a Binary String You are given a binary string s consisting only of zeroes and ones. A substring of s is considered balanced if all zeroes are before ones and the number of zeroes is equal to the number of ones inside 2023-11-07 #leetcode #java #two pointer #string
[LeetCode] 2265. Count Nodes Equal to Average of Subtree Given the root of a binary tree, return the number of nodes where the value of the node is equal to the average of the values in its subtree. Note:The average of n elements is the sum of the n element 2023-11-06 #leetcode #tree #dfs #java #postorder
[LeetCode] 1535. Find the Winner of an Array Game Given an integer array arr of distinct integers and an integer k. A game will be played between the first two elements of the array (i.e. arr[0] and arr[1]). In each round of the game, we compare arr[ 2023-11-05 #leetcode #java #array #simulation
[LeetCode] 2149. Rearrange Array Elements by Sign You are given a 0-indexed integer array nums of even length consisting of an equal number of positive and negative integers. You should rearrange the elements of nums such that the modified array foll 2023-11-04 #leetcode #java #array #two pointer #simulation
[LeetCode] 2558. Take Gifts From the Richest Pile You are given an integer array gifts denoting the number of gifts in various piles. Every second, you do the following: Choose the pile with the maximum number of gifts.If there is more than one pile 2023-10-28 #leetcode #java #array #heap #simulation
[LeetCode] 2530. Maximal Score After Applying K Operations You are given a 0-indexed integer array nums and an integer k. You have a starting score of 0. In one operation:choose an index i such that 0 <= i < nums.length,increase your score by nums[ 2023-10-18 #leetcode #java #array #greedy #heap
[LeetCode] 1921. Eliminate Maximum Number of Monsters You are playing a video game where you are defending your city from a group of n monsters. You are given a 0-indexed integer array dist of size n, where dist[i] is the initial distance in kilometers o 2023-09-03 #leetcode #java #array #greedy #sort