leetcode：Valid Sudoku and Sudoku Solver
Question 1（Valid Sudoku）： Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules. The Sudoku board could be partially filled ...
原文：[leetcode]Sudoku Solver @ Python
原題地址：https: oj.leetcode.com problems sudoku solver 題意： 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 wil ...
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leetcode: Sudoku Solver
http://oj.leetcode.com/problems/sudoku-solver/ 思路： 和前面一題Valid Sudoku相比，題目的輸入保證是有效的。這樣用回溯法我們只要檢查新加入的值能否在行、列以及小方塊里有效即可，沒有必要檢查整個矩陣。 ...
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題目： Write a program to solve a Sudoku puzzle by filling the empty cells. Empty cells are indicated by the character '.'. You may assume ...
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[leetcode]Valid Sudoku @ Python
原題地址：https://oj.leetcode.com/problems/valid-sudoku/ 題意： Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules. The Sudoku board ...
leetcode: Valid Sudoku
http://oj.leetcode.com/problems/valid-sudoku/ 思路： 按行，按列，再按3 * 3小方塊檢查，只要都通過就返回true，不然就是false。 ...