Description A Sudoku grid is a 16x16 grid of cells grouped in sixteen 4x4 squares, where some cells are filled with letters from A to P (the first ...
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其他好文 时间:
2015-01-31 14:27:01
阅读次数:
313
Description In the game of Sudoku, you are given a large 9 × 9 grid divided into smaller 3 × 3 subgrids. For example,.2738..1..1...6735.......293.5...
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其他好文 时间:
2015-01-31 14:25:36
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298
Description Today we play a squigglysudoku, The objective is to fill a 9*9 grid with digits so that each column, each row, and each of the nine Con...
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其他好文 时间:
2015-01-31 14:14:17
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147
Description Your boss once had got many copies of a treasure map. Unfortunately, all the copies are now broken to many rectangular pieces, and what...
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其他好文 时间:
2015-01-31 14:13:38
阅读次数:
154
在精确覆盖的基础上只修改remove() 和resume() 就好了,每次选中一行,只把这一行对应的列以及这一行删除即可。
很显然的,这样降低了矩阵缩小的速度,但是出现A*优化的补救方法,H()是在VJ上扒下来的,233。
#include
#include
#include
#include
#include
#include
#include
#include
#inclu...
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其他好文 时间:
2015-01-26 08:53:47
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248
1017 - Exact cover
Time Limit: 15s Memory Limit:
128MB
Special Judge Submissions: 6023 Solved: 3188
DescriptionThere is an N*M matrix with only 0s and 1s, (1 <= N,M <= 1000). An exact cov...
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其他好文 时间:
2015-01-06 10:06:46
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180
Your boss once had got many copies of a treasure map. Unfortunately, all the copies are now broken to many rectangular pieces, and what make it worse, he has lost some of the pieces.
Luckily, it is...
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其他好文 时间:
2014-12-25 00:15:48
阅读次数:
198
BackGround:
做完LeetCode上的数独题目好长时间了,今天将做题时参考的Algorithm X 以及 Dancing Links 整理出来。话说理解算法+写出程序一共用了三天,智商果然余额不足。。。
介绍:
由于Dancing Links 是为了解决数独问题学习的,那就从数独问题下手,围绕数独问题展开对Algorithm X 和 Dancing Link...
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其他好文 时间:
2014-12-10 16:18:58
阅读次数:
300
// 精确覆盖#include#include#include#include#include#include#include#include#include#include#include#include#define rep(i,n) for(int i=0;i=a;--i)#define PB...
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其他好文 时间:
2014-11-27 23:25:44
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317
题目链接:https://icpcarchive.ecs.baylor.edu/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=660
TimeLimit: 3.000 seconds
A Sudoku grid is a 16 x 16 grid of cells grouped in sixteen...
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其他好文 时间:
2014-11-17 21:18:14
阅读次数:
264