LeetCode 733. Flood Fill
Description https://leetcode.com/problems/flood-fill/ An image is represented by an m x n integer grid image where image[i][j] represents the pixel value of the image. You are also…
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LeetCode 247. Strobogrammatic Number II
Description https://leetcode.com/problems/strobogrammatic-number-ii/ A strobogrammatic number is a number that looks the same when rotated 180 degrees (looked at upside down).…
LeetCode 329. Longest Increasing Path in a Matrix
Description https://leetcode.com/problems/longest-increasing-path-in-a-matrix/ Given an integer matrix, find the length of the longest increasing path. From each cell, you can either…
LeetCode 200. Number of Islands
Description https://leetcode.com/problems/number-of-islands/ Given an m x n 2d grid map of ‘1’s (land) and ‘0’s (water), return the number of islands. An island is surrounded by water and is…
LeetCode 39. Combination Sum
Description https://leetcode.com/problems/combination-sum/ Given an array of distinct integers candidates and a target integer target, return a list of all unique combinations of candidates where the chosen numbers sum to target. You may…
LeetCode 40. Combination Sum II
Description Given a collection of candidate numbers (candidates) and a target number (target), find all unique combinations in candidates where the candidate…