Iahub and Iahubina went to a picnic in a forest full of trees. Less than 5 minutes passed before Iahub remembered of trees from programming. Moreover,...
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其他好文 时间:
2015-05-24 11:18:36
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124
最短路+记忆化搜索#include#include#include#include#includeusing namespace std;const int maxn = 1003;const int INF = 0x3f3f3f3f;vectorljb[maxn];int jz[maxn][max...
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其他好文 时间:
2015-05-23 15:27:09
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120
题目链接:HDU - 1512Once in a forest, there lived N aggressive monkeys. At the beginning, they each does things in its own way and none of them knows each ...
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其他好文 时间:
2015-05-21 21:39:22
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250
题目链接:HDU - 1512Once in a forest, there lived N aggressive monkeys. At the beginning, they each does things in its own way and none of them knows each ...
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其他好文 时间:
2015-05-21 19:15:56
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138
Huge Tree(0856)问题描述There are N trees in a forest. At first, each tree contains only one node as its root. And each node is marked with a number.You're...
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其他好文 时间:
2015-05-16 16:12:37
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115
前言 最近阅读了spark mllib(版本:spark 1.3)中Random Forest的实现,发现在分布式的数据结构上实现迭代算法时,有些地方与单机环境不一样。单机上一些直观的操作(递归),在分布式数据上,必须进行优化,否则I/O(网络,磁盘)会消耗大量时间。本文整理spark随机森林实现中...
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其他好文 时间:
2015-05-03 14:37:06
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317
A Walk Through the ForestTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 6397 Accepted Submission(s): 2348Problem Description
Jimmy experie...
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其他好文 时间:
2015-05-03 00:52:15
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163
Introduction to Random forest(Simplified)With increase in computational power, we can now choose algorithms which perform very intensive calculations....
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其他好文 时间:
2015-04-28 17:39:58
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367
Problem Description
In the mysterious forest, there is a group of Magi. Most of them like to eat human beings, so they are called “The Ogre Magi”, but there is an special one whose favorite food is ha...
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其他好文 时间:
2015-04-28 14:08:31
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129
分析:找到吉米从办公室穿过森林回到家(也就是从点1到点2)的最短路径有多少条,其中要满足如果要走A到B这条路,那么就有从A到终点的距离都大于B到终点的距离。
解法:spfa算法+记忆化深搜
1、spfa求出从终点2到其他所有点的最短路
2、记忆化DFS从1开始向其他点深搜,最后结果就是dp[1]。
#include
#include
using namespace std;
...
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编程语言 时间:
2015-04-28 09:55:16
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145