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…

Determine if a 9x9 Sudoku board is valid. Only the filled cells need to be validated according to the following rules: Each row must contain the digits 1-9 without repetition. Each column must contain the digits 1-9 without repetition. Each of the 9 …

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. 数独部分空格内已填入了数字,空白格用 '.' 表示. 示例 1: 输入: [ ["5","3",".",".","7","."…

public class Solution { public bool IsValidSudoku(char[,] board) { ; i < ; i++) { var dic = new Dictionary<char, int>(); ; j < ; j++) { var num = board[i, j]; if (num == '.') { continue; } if (dic.ContainsKey(num)) { return false; } else { dic…

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. 数独部分空格内已填入了数字,空白格用 '.' 表示. 示例 1: 输入: [ ["5","3",".",".","7","."…

Write a program to solve a Sudoku puzzle by filling the empty cells. A sudoku solution must satisfy all of the following rules: Each of the digits 1-9 must occur exactly once in each row. Each of the digits 1-9 must occur exactly once in each column.…