[题目] 每一行.每一列.每个3*3的格子里只能出现一次1~9. [思路] 参考了思路,附加了解释. dfs遍历所有非空格子,n是已经填好的个数. 初始化条件.n=81,都填了,返回结束.对于已经填好的b[x][y] != '.'跳过,到下一个. xy的设计保证先行后列填写. if (n == 81) return true; int x = n / 9; int y = n % 9; if (b[x][y] != '.') return dfs(b, n + 1); 开始填数字,validat…
题目: Write a program to solve a Sudoku puzzle by filling the empty cells. Empty cells are indicated by the character '.'. You may assume that there will be only one unique solution. A sudoku puzzle... ...and its solution numbers marked in red. 这题相对上题值…
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 boa…
三星机试也考了类似的题目,只不过是要针对给出的数独修改其中三个错误数字,总过10个测试用例只过了3个与世界500强无缘了 36. 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…
# -*- coding: utf8 -*-'''__author__ = 'dabay.wang@gmail.com' 37: Sudoku Solverhttps://oj.leetcode.com/problems/sudoku-solver/ Write a program to solve a Sudoku puzzle by filling the empty cells.Empty cells are indicated by the character '.'.You may a…
Sudoku Solver Write a program to solve a Sudoku puzzle by filling the empty cells. Empty cells are indicated by the character '.'. You may assume that there will be only one unique solution. A sudoku puzzle... ...and its solution numbers marked in re…
题目链接:Sudoku Solver | LeetCode OJ Write a program to solve a Sudoku puzzle by filling the empty cells. Empty cells are indicated by the character '.'. You may assume that there will be only one unique solution. A sudoku puzzle... ...and its solution n…
#include<iostream> using namespace std; bool heng(int **sudo, int a, int b, int value) { bool flag = true; for(int i=0; i<9; i++) { if(sudo[a][i]==value) { flag = false; } } return flag; } bool shu(int **sudo, int a, int b, int value) { bool flag…
