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搜索关键字:unique paths    ( 5916个结果
UVA - 12295 Optimal Symmetric Paths (递推)
Description   Optimal Symmetric Paths  You have a grid of n rows and n columns. Each of the unit squares contains a non-zero digit. You walk from the top-left square to the b...
分类:其他好文   时间:2014-08-16 12:36:50    阅读次数:332
THINKPHP_动态验证validate()
$data=I(‘post.‘,‘‘,‘trim‘); $rules = array( ???? array(‘name‘,‘‘,‘数据名称已存在‘,0,‘unique‘,1), ???? //array(验证字段1,验证规则,错误提示,[验证条件,附加规则,验证时间]), ???? array(‘ver...
分类:Web程序   时间:2014-08-16 01:12:29    阅读次数:480
[leetcode]Unique Binary Search Trees
Unique Binary Search TreesGivenn, how many structurally uniqueBST's(binary search trees) that store values 1...n?For example,Givenn= 3, there are a to...
分类:其他好文   时间:2014-08-16 00:59:29    阅读次数:178
[leetcode]Unique Binary Search Trees II
Unique Binary Search Trees IIGivenn, generate all structurally uniqueBST's(binary search trees) that store values 1...n.For example,Givenn= 3, your pr...
分类:其他好文   时间:2014-08-15 23:44:29    阅读次数:280
UVALive 5881 Unique Encryption Keys【线段树】
题目:UVALive 5881 Unique Encryption Keys 分类:线段树,想法题 题意:给出n个数,然后有q次查询,每次查询 l---r 区间内有没有重复的数,有的话输出任意的,没有的话输出ok 分析:上去一看觉得这个题目可以不用线段树做,因为它是静态的,想了一个方法后来发现时不对的,后来规规矩矩用线段树了。 这个题目不能直接用线段树,否则的话无法...
分类:其他好文   时间:2014-08-15 19:42:39    阅读次数:256
uva 705 - Slash Maze
Slash MazeBy filling a rectangle with slashes (/) and backslashes ( ), you can generate nice little mazes. Here is an example:As you can see, paths i....
分类:其他好文   时间:2014-08-15 14:30:58    阅读次数:272
POJ 3352 Road Construction POJ 3177 Redundant Paths(边双连通图 Tarjan+缩点)
POJ 3352 Road Construction POJ 3177 Redundant Paths(边双连通图 Tarjan+缩点) ACM 题目地址:  POJ 3352 Road Construction  POJ 3177 Redundant Paths 题意:  问要添加几条边才能使所给无向图图变成边双连通图。 分析:  边连通度:使无向图G不连通的最少...
分类:其他好文   时间:2014-08-15 12:54:58    阅读次数:178
Unique Paths
A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below).The robot can only move either down or right at any point in time. The robot is trying to reach the bottom-right corner of the grid (marked 'Finish' in the diag...
分类:其他好文   时间:2014-08-15 09:32:37    阅读次数:200
Unique Binary Search Tree II
Givenn, generate all structurally uniqueBST's(binary search trees) that store values 1...n.For example,Givenn= 3, your program should return all 5 uni...
分类:其他好文   时间:2014-08-14 20:16:29    阅读次数:219
POJ3177Redundant Paths(边的双连通性,用vector时一定要去掉重边)
Redundant Paths Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 9118   Accepted: 3925 Description In order to get from one of the F (1 <= F <= 5,000) grazing...
分类:其他好文   时间:2014-08-13 19:03:27    阅读次数:264
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