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[LeetCode]Sudoku Solver
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...
分类:其他好文   时间:2015-08-19 23:10:32    阅读次数:122
ZOJ 3814 Sawtooth Puzzle (2014年牡丹江赛区网络赛F题)
1.题目描述:点击打开链接 2.解题思路:本题是一道隐式图的搜索题目。一般来说,这类题目首先要定义状态,接下来是弄清楚状态如何转移,以及状态如何判重,如何判断当前状态是否和目标状态相同。至于求解最短路就是常用的BFS即可。接下来我们逐一展开讨论。 1.状态的定义:看到这道题,猛一下会想着把每个字符分别用01表示,然后看成二进制码进行状态压缩,这个状态定义虽然可以,但是显然,状态过于精确...
分类:其他好文   时间:2015-08-19 14:59:45    阅读次数:220
zoj 1028 Flip and Shift(数学)
Flip and ShiftTime Limit: 2 Seconds Memory Limit: 65536 KBThis puzzle consists of a random sequence of m black disks and n white disks on an oval-s...
分类:其他好文   时间:2015-08-16 15:13:15    阅读次数:126
HDU 1097 A hard puzzle
链接:http://acm.hdu.edu.cn/showproblem.php?pid=1097 A hard puzzle Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 34724    Accepted Subm...
分类:其他好文   时间:2015-08-15 10:24:01    阅读次数:168
【UVa 156】Ananagrams
AnanagramsMost crossword puzzle fans are used toanagrams--groups of words with the same letters in different orders--for example OPTS, SPOT, STOP, POT...
分类:其他好文   时间:2015-08-14 13:34:41    阅读次数:155
HDU 1097.A hard puzzle【快速幂或规律】【8月12】
A hard puzzle Problem Description lcy gives a hard puzzle to feng5166,lwg,JGShining and Ignatius: gave a and b,how to know the a^b.everybody objects to this BT problem,so lcy makes the problem...
分类:其他好文   时间:2015-08-12 21:42:59    阅读次数:131
Katu Puzzle (poj 3678 2-SAT)
题意:n个点给出m个关系(AND,OR,XOR),问是否存在解。 思路:2-SAT建图 a AND b = 1: ~x->x,~y->y (两个数必须全为1) a AND b = 0: y->~x,x->~y (两个数至少有一个为0) a OR b = 1:~x->y,~y->x (两个数至少有一个为1) a OR b = 0: x->~x,y->~y (两个数必须全为0) a XOR b = 1:x->~y,y->~x,~y->x,~x->y (两个数必须不同) a XOR b = 0:x->y,y->x...
分类:其他好文   时间:2015-08-10 16:15:28    阅读次数:100
POJ 1651:Multiplication Puzzle 矩阵相乘式DP
Multiplication Puzzle Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 7118   Accepted: 4385 Description The multiplication puzzle is played with a row of c...
分类:其他好文   时间:2015-08-10 12:04:45    阅读次数:154
[LeetCode] 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 d...
分类:其他好文   时间:2015-08-09 00:17:58    阅读次数:154
HDU 2931 Digit Puzzle 搜索 DFS
#include #include int num[3],tot,n,f; char s[3][100],ans[3][100]; int check() { char str[100]; int a=0,b=0,c; for(int i=0;i<num[0];i++) a=a*10+s[0][i]-'0'; for(int i=0;i<num[1];i++) b=b*10+s...
分类:其他好文   时间:2015-08-07 14:50:24    阅读次数:116
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