三次9*9 循环,效率不高吧
class Solution:
# @param {character[][]} board
# @return {boolean}
def isValidSudoku(self, board):
if len(board)!=9 or len(board[0])!=9:
return False...
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其他好文 时间:
2015-05-21 19:34:32
阅读次数:
130
很简单的字符串匹配问题,直接用栈就可以实现,为使程序更加高效,当要匹配的字符种类比较多的时候可以考虑用HashMap来保存匹配对...
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其他好文 时间:
2015-05-21 10:55:47
阅读次数:
100
Given a string containing only digits, restore it by returning all possible valid IP address combinations. For example:Given "25525511135",return ["25...
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编程语言 时间:
2015-05-20 23:46:09
阅读次数:
157
1 class Solution { 2 public: 3 bool isNumber(string s) { 4 if(s == " ") return false; 5 int i = 0; 6 int j = s.size()-1; 7 while(s[i]...
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其他好文 时间:
2015-05-20 17:56:04
阅读次数:
131
一、概要 平时项目开发中,可能使用第三方提供的静态库.a,如果.a提供方技术不成熟,使用的时候就会出现问题,例如: 在真机上编译报错:No architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=x8...
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移动开发 时间:
2015-05-20 16:33:51
阅读次数:
162
ZOJ3861 ,Valid Pattern Lock,搜索,dfs,ACM...
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其他好文 时间:
2015-05-19 10:52:44
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143
Problem:
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 p...
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编程语言 时间:
2015-05-19 00:53:17
阅读次数:
188
https://leetcode.com/problems/valid-sudoku/Valid SudokuDetermine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules.The Sudoku board could ...
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编程语言 时间:
2015-05-19 00:45:26
阅读次数:
688
https://leetcode.com/problems/valid-palindrome/Valid PalindromeGiven a string, determine if it is a palindrome, considering only alphanumeric characte...
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编程语言 时间:
2015-05-18 18:46:26
阅读次数:
304
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...
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其他好文 时间:
2015-05-18 16:00:43
阅读次数:
102