sunshisonghit

摘要： Restore IP Addresses问题：Given a string containing only digits, restore it by returning all possible valid IP address combinations.思路： dfs + 回溯模板我的代码1：... 阅读全文

摘要： Subsets II问题：Given a collection of integers that might contain duplicates,S, return all possible subsets.Note:Elements in a subset must be in non-desc... 阅读全文

摘要： N-Queens问题：Then-queens puzzle is the problem of placingnqueens on ann×nchessboard such that no two queens attack each other.思路： dfs + 回溯 常用模板我的代码：pub... 阅读全文

摘要： Subsets问题：Given a set of distinct integers,S, return all possible subsets.Note:Elements in a subset must be in non-descending order.The solution set m... 阅读全文

摘要： Combination Sum II问题：Given a collection of candidate numbers (C) and a target number (T), find all unique combinations inCwhere the candidate numbers ... 阅读全文

摘要： Combination Sum问题：Given a set of candidate numbers (C) and a target number (T), find all unique combinations inCwhere the candidate numbers sums toT.T... 阅读全文

摘要： Sudoku Solver问题：Write a program to solve a Sudoku puzzle by filling the empty cells.Empty cells are indicated by the character'.'.You may assume that ... 阅读全文

摘要： Valid Sudoku问题：Determine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty cells a... 阅读全文