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原题地址：https://oj.leetcode.com/problems/sudoku-solver/题意：Write a program to solve a Sudoku puzzle by filling the empty cells.Empty cells are indicated b... 阅读全文
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原题地址：https://oj.leetcode.com/problems/valid-sudoku/题意：Determine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules.The Sudoku board could b... 阅读全文
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原题地址：https://oj.leetcode.com/problems/search-a-2d-matrix/题意：Write an efficient algorithm that searches for a value in anmxnmatrix. This matrix has the... 阅读全文
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原题地址：https://oj.leetcode.com/problems/anagrams/题意：Given an array of strings, return all groups of strings that are anagrams.Note: All inputs will be i... 阅读全文
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原题地址：https://oj.leetcode.com/problems/spiral-matrix-ii/题意：Given an integern, generate a square matrix filled with elements from 1 ton2in spiral order.... 阅读全文
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原题地址：https://oj.leetcode.com/problems/spiral-matrix/题意：Given a matrix ofmxnelements (mrows,ncolumns), return all elements of the matrix in spiral orde... 阅读全文
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原题地址：https://oj.leetcode.com/problems/word-search/题意：Given a 2D board and a word, find if the word exists in the grid.The word can be constructed from... 阅读全文
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原题地址：https://oj.leetcode.com/problems/merge-sorted-array/题意：Given two sorted integer arrays A and B, merge B into A as one sorted array.解题思路：归并排序的归并这一... 阅读全文
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原题地址：https://oj.leetcode.com/problems/set-matrix-zeroes/题意：Given amxnmatrix, if an element is 0, set its entire row and column to 0. Do it in place.解题... 阅读全文