[LeetCode] Word Search
문제링크 문제 설명 Given an m x n grid of characters board and a string word, return true if word exists in the grid. The word can be constructed from letters o...
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[LeetCode] Letter Combinations of a Phone Number
문제링크 문제 설명 Given a string containing digits from 2-9 inclusive, return all possible letter combinations that the number could represent. Return the answe...
[LeetCode] Longest Palindromic Substring
문제링크 문제 설명 Given a string s, return the longest palindromic substring in s. Example 1: Input: s = "babad" Output: "bab" Note: "aba" is also a valid ans...
[LeetCode] Container With Most Water
문제링크 Given n non-negative integers a1, a2, ..., an , where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpo...
[LeetCode] Trapping Rain Water
문제링크 Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it can trap after raining. Exam...
[LeetCode] Median of Two Sorted Arrays
문제링크 Given two sorted arrays nums1 and nums2 of size m and n respectively, return the median of the two sorted arrays. The overall run time c...
[LeetCode] First Missing Positive
문제링크 Given an unsorted integer array nums, find the smallest missing positive integer. You must implement an algorithm that runs in O(n) time and uses co...
[LeetCode] Climbing Stairs
문제링크 Easy You are climbing a staircase. It takes n steps to reach the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you ...
[LeetCode] Unique Paths
문제링크 A robot is located at the top-left corner of a m x n grid (marked ‘Start’ in the diagram below). The robot can only move either down or right at any p...
[LeetCode] 3Sum
문제링크 Medium Given an integer array nums, return all the triplets [nums[i], nums[j], nums[k]] such that i != j, i != k, and j != k, and nums[i] + nums[j] + ...