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搜索关键字:精确覆盖    ( 83个结果
(简单) POJ 3076 Sudoku , DLX+精确覆盖。
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 ...
分类:其他好文   时间:2015-01-31 14:27:01    阅读次数:313
(简单) POJ 3074 Sudoku, DLX+精确覆盖。
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...
分类:其他好文   时间:2015-01-31 14:25:36    阅读次数:298
(中等) HDU 4069 Squiggly Sudoku , DLX+精确覆盖。
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...
分类:其他好文   时间:2015-01-31 14:14:17    阅读次数:147
(简单) ZOJ 3209 Treasure Map , DLX+精确覆盖。
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...
分类:其他好文   时间:2015-01-31 14:13:38    阅读次数:154
可重复覆盖的DLX
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...
分类:其他好文   时间:2015-01-26 08:53:47    阅读次数:248
HUST1017----Exact cover
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...
分类:其他好文   时间:2015-01-06 10:06:46    阅读次数:180
ZOJ 3209 Treasure Map(DLX精确覆盖)
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...
分类:其他好文   时间:2014-12-25 00:15:48    阅读次数:198
LeetCode----Sudoku Solver+精确覆盖问题解法(Dancing Links)
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...
分类:其他好文   时间:2014-12-10 16:18:58    阅读次数:300
DLX_e/m
// 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...
分类:其他好文   时间:2014-11-27 23:25:44    阅读次数:317
LA 2659 && poj 3076 && zoj 3122 Sudoku(精确覆盖 + DLX)
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...
分类:其他好文   时间:2014-11-17 21:18:14    阅读次数:264
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