DescriptionUnidirectional TSPBackgroundProblems that require minimum paths through some domain appear in many different areas of computer science. For...
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其他好文 时间:
2014-08-06 14:16:41
阅读次数:
336
Paths on the tree
Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)
Total Submission(s): 297 Accepted Submission(s): 93
Problem Description
bobo has a tr...
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其他好文 时间:
2014-08-06 11:52:11
阅读次数:
284
lca。。。
排个序然后暴力保平安
_(:зゝ∠)_
#pragma comment(linker, "/STACK:102400000,102400000")
#include"cstdio"
#include"iostream"
#include"set"
#include"queue"
#include"string.h"
using namespace std;
#define...
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其他好文 时间:
2014-08-05 19:25:00
阅读次数:
299
Follow up for "Unique Paths":Now consider if some obstacles are added to the grids. How many unique paths would there be?An obstacle and empty space i...
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其他好文 时间:
2014-08-05 18:09:19
阅读次数:
168
Paths on a Grid
Time Limit: 1000MS
Memory Limit: 30000K
Total Submissions: 21439
Accepted: 5259
Description
Imagine you are attending your math lesson at school. Once...
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其他好文 时间:
2014-08-04 18:06:27
阅读次数:
298
题目:人生有很多选择,现在给你一些选择(0~n-1),和每个选择分支后面的其他选择序号,求选择总数。
分析:dp,图论。如果某状态的后续选择个数是0个则,代表死亡,统计所有到达死亡的路径条数即可。
用一个状态数组记录到达每个选择的路径数,它等于能到达它的前驱节点的路径加和。
稀疏图,使用邻接表储存。初始是节点0的路径条数为1,代表出生。
说明...
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其他好文 时间:
2014-08-04 17:53:57
阅读次数:
199
SGU 407
407. Number of Paths in the Empire
Time limit per test: 0.75 second(s)
Memory limit: 65536 kilobytes
input: standard
output: standard
During the period of Tsam dynasty ruling...
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编程语言 时间:
2014-08-04 17:46:17
阅读次数:
294
问题:从起点到终点总共有多少条路径分析:f[x,y]=f[x+1,y]+f[x,y+1],用记忆化搜索就可以解决了class Solution {public: int num[110][110]; int dfs(int m,int n,int x,int y) { ...
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其他好文 时间:
2014-08-02 20:39:33
阅读次数:
165
题目:Follow up for "Unique Paths":Now consider if some obstacles are added to the grids. How many unique paths would there be?An obstacle and empty spa....
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编程语言 时间:
2014-08-02 12:19:13
阅读次数:
241
题目: 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 a....
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编程语言 时间:
2014-08-02 12:17:23
阅读次数:
279