L51: N-Queens
The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that
no two queens attack each other.
Given an integer n, return all distinct solutions to the n-qu...
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其他好文 时间:
2015-06-09 17:32:04
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140
The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other.

Given an integer n, return...
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其他好文 时间:
2015-06-09 11:54:45
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125
这里给链接: 自动拼图 http://pan.baidu.com/s/1sjoNv7f其实呢, 也没多少技术含量. 当然, 我比较谦虚.源码 1 #include "Game.h" 2 3 #include 4 5 static const auto PUZZLE_COUNT = 1...
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其他好文 时间:
2015-06-08 19:29:42
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136
N-QueensThen-queens puzzle is the problem of placingnqueens on ann×nchessboard such that no two queens attack each other.Given an integern, return all...
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编程语言 时间:
2015-06-07 17:11:36
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146
Sudoku SolverWrite a program to solve a Sudoku puzzle by filling the empty cells.Empty cells are indicated by the character'.'.You may assume that the...
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编程语言 时间:
2015-06-06 18:01:44
阅读次数:
378
分析:裴蜀定理,a,b互质的充要条件是存在整数x,y使ax+by=1。存在整数x,y,使得ax+by=c,那么c就是a,b的公约数。
假设存在数a ,因为对任意x方程都成立,则有当x=1时f(x)=18+ka;有因为f(x)能被65整除,所以f(x)=n*65。即18+ka=n*65有整数解则说明假设成立。
ax+by = c的方程有整数解的一个充要条件是:c%gcd(a, b) == 0。然...
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其他好文 时间:
2015-06-03 19:39:23
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151
Then-queens puzzle is the problem of placingnqueens on ann×nchessboard such that no two queens attack each other.Given an integern, return all distinc...
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其他好文 时间:
2015-06-03 06:09:15
阅读次数:
143
题目大意:给你一个0101串,长度为N(N<=200)N(N<=200),每一位不但能控制自己,还可以控制别的一些位,现在有反转操作,假设我们对第ii位执行反转操作,那么ii所控制的所有位都会反转。现在给你每位控制的集合,和初始0101串,问是否存在一种操作方式使得这个串都为00或11。解题思路:直接高斯消元就行了。
没什么可说的。AC代码:#include
#include <...
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其他好文 时间:
2015-06-01 22:42:20
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129
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...
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其他好文 时间:
2015-05-28 23:04:05
阅读次数:
153
Given a list of integers (A1, A2, …, An), and a positive integer M, please find the number of positive integers that are not greater than M and dividable by any integer from the given list.InputThe inp...
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其他好文 时间:
2015-05-28 16:11:16
阅读次数:
117