煮酒洗净尘嚣，

原文链接: https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array 英文原文Given an array of i

原文链接: https://leetcode-cn.com/problems/search-insert-position 英文原文Given a sorted array of distinct integers and a targ

原文链接: https://leetcode-cn.com/problems/valid-sudoku 英文原文Determine if a 9 x 9 Sudoku board is valid. Onl

原文链接: https://leetcode-cn.com/problems/sudoku-solver 英文原文Write a program to solve a Sudoku puzzle by filling the empty

原文链接: https://leetcode-cn.com/problems/combination-sum 英文原文Given an array of distinct integers candidates and a target

原文链接: https://leetcode-cn.com/problems/combination-sum-ii 英文原文Given a collection of candidate numbers (candidates) and

原文链接: https://leetcode-cn.com/problems/first-missing-positive 英文原文Given an unsorted integer array nums, return the sma

原文链接: https://leetcode-cn.com/problems/trapping-rain-water 英文原文Given n non-negative integers representing an elevation

原文链接: https://leetcode-cn.com/problems/multiply-strings 英文原文Given two non-negative integers num1 and num2 represented

原文链接: https://leetcode-cn.com/problems/wildcard-matching 英文原文Given an input string (s) and a pattern (p), implement wi