LeetCode 205. Isomorphic Strings
Description https://leetcode.com/problems/isomorphic-strings/ Given two strings s and t, determine if they are isomorphic. Two strings are isomorphic if the characters in s can be replaced…
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LeetCode 947. Most Stones Removed with Same Row or Column
Description https://leetcode.com/problems/most-stones-removed-with-same-row-or-column/ On a 2D plane, we place stones at some integer coordinate points. Each coordinate point may have at…
LeetCode 222. Count Complete Tree Nodes
Description https://leetcode.com/problems/count-complete-tree-nodes/ Given a complete binary tree, count the number of nodes. Note: Definition of a complete binary tree from Wikipedia:In a complete…
LeetCode 1620. Coordinate With Maximum Network Quality
Description https://leetcode.com/problems/coordinate-with-maximum-network-quality/ You are given an array of network towers towers and an integer radius, where towers[i] = [xi, yi, qi] denotes the ith network tower with…
LeetCode 1619. Mean of Array After Removing Some Elements
Description https://leetcode.com/problems/mean-of-array-after-removing-some-elements/ Given an integer array arr, return the mean of the remaining integers after removing the smallest 5% and the largest 5% of the elements.…
LeetCode 135. Candy
Description https://leetcode.com/problems/candy/ There are N children standing in a line. Each child is assigned a rating value. You are giving candies to…
LeetCode 246. Strobogrammatic Number
Description https://leetcode.com/problems/strobogrammatic-number/ A strobogrammatic number is a number that looks the same when rotated 180 degrees (looked at upside down).…
LeetCode 299. Bulls and Cows
Description https://leetcode.com/problems/most-common-word/ You are playing the Bulls and Cows game with your friend. You write down a secret number and ask your…
LeetCode 399. Evaluate Division
Description https://leetcode.com/problems/most-common-word/ You are given an array of variable pairs equations and an array of real numbers values, where equations[i] = [Ai, Bi] and values[i] represent the…
LeetCode 819. Most Common Word
Description https://leetcode.com/problems/most-common-word/ Given a paragraph and a list of banned words, return the most frequent word that is not in the…