https://leetcode.com/problems/valid-sudoku/ https://leetcode.com/problems/valid-sudoku/discuss/15450/Shared-my-concise-Java-code https://leetcode.com/problems/valid-sudoku/discuss/15472/Short%2BSimple-Java-using-Strings LeetCode All in One 题目讲解汇总(持续更新中...)
【LeetCode】36. Valid Sudoku Valid Sudoku Determine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules. The Sudoku board could be partially filled, where empty cells are filled with the character'.'. A partially filled sudoku which is valid. Note: A valid Sudoku board (partially...
Leetcode: Valid Sudoku 题目: Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules. The Sudoku board could be partially filled, where empty cells are filled with the character ‘.’. Sudoku规则: 在一个9*9的区域内, 每行1-9出现且只出现一次, 每列1-9出现且只出现一次,...
36. 有效的数独 - 请你判断一个 9 x 9 的数独是否有效。只需要 根据以下规则 ,验证已经填入的数字是否有效即可。 1. 数字 1-9 在每一行只能出现一次。 2. 数字 1-9 在每一列只能出现一次。 3. 数字 1-9 在每一个以粗实线分隔的 3x3 宫内只能出现一次。(请参考示例图)
A Sudoku board (partially filled) could be valid but is not necessarily solvable. Only the filled cells need to be validated according to the mentioned rules. Example 1: Input: board = [["5","3",".",".","7",".",".",".","."] ...
【Leetcode】Valid Sudoku https://leetcode.com/problems/valid-sudoku/ 题目: Determine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules. '.'. A partially filled sudoku which is valid. Note: A valid Sudoku board (partially filled) is not necessarily solvable. Only the filled ...
Valid Sudoku -- LeetCode 这道题是Sudoku Solver的一个子问题,在解数独的时候我们需要验证当前数盘是否合法。其实思路比较简单,也就是用brute force。对于每一行,每一列,每个九宫格进行验证,总共需要27次验证,每次看九个元素。所以时间复杂度就是O(3*n^2), n=9。代码如下:...
所属专辑:LeetCode算法题目讲解 喜欢下载分享 声音简介[LeetCode] 36. Valid Sudoku 有效的数独博客园:https://www.cnblogs.com/grandyang/p/4421217.htmlGitHub:https://github.com/grandyang/leetcode/issues/36个人网页:https://grandyang.com/leetcode/36/ ...
《Valid Sudoku》判断一个输入的sudoku是否是合法的sudoku,运用二维数组的特性,保证当前a[i][j]所在的行,列以及九宫格内均没有这个数字即可,操作全部由二维index实现。 ...畅读版【http://t.cn/8sb4cjt】
36. Valid Sudoku 判断一个 9x9 的数独是否有效。只需要根据以下规则,验证已经填入的数字是否有效即可。 数字1-9 在每一行只能出现一次。 数字1-9 在每一列只能出现一次。 数字1-9 在每一个以粗实线分隔的 3x3 宫内只能出现一次。 上图是一个部分填充的有效的数独。