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hdu2393Higher Math
Problem DescriptionYou are building a house. You’d prefer if all the walls have a precise right angle relative to the ground, but you have no device t...
分类:其他好文   时间:2015-06-06 19:36:02    阅读次数:111
poj3321 Apple Tree
Description There is an apple tree outside of kaka's house. Every autumn, a lot of apples will grow in the tree. Kaka likes apple very much, so he has been carefully nurturing the big apple tree. ...
分类:移动开发   时间:2015-06-06 15:02:30    阅读次数:157
POJ 2057 The Lost House 经典树形DP+贪心
POJ 2057 The Lost House 树形DP+贪心...
分类:其他好文   时间:2015-06-04 13:47:48    阅读次数:104
[LeetCode] House Robber II
This problem is a little tricky at first glance. However, if you have finished the "House Robber" problem, this problem can simply bedecomposed into t...
分类:其他好文   时间:2015-06-03 00:42:11    阅读次数:231
poj2057 The Lost House
题意: 给出一颗有根树,边权均为1; 一个S在根结点上,要找到在某个叶子结点上的它的房子; 有的结点上有w,可以告诉S当前结点的子树上是否有它的房子; 房子在每个叶子结点的概率相等,选择一种最佳的计划,来让S走的期望值最小;...
分类:其他好文   时间:2015-06-02 09:30:52    阅读次数:115
House Robber II
Note: This is an extension of House Robber.After robbing those houses on that street, the thief has found himself a new place for his thievery so that he will not get too much attention. This time, all...
分类:其他好文   时间:2015-05-30 21:15:01    阅读次数:152
Housse Robber II | leetcode
可以复用house robber的代码,两趟dp作为两种情况考虑,选最大值#include #define MAX 1000#define max(a,b) ( (a)>(b)?(a):(b) )int dp[MAX]={0};int rob1(int* a, int n) { int i; ...
分类:其他好文   时间:2015-05-30 19:47:09    阅读次数:112
LeetCode 198. House Robber
动态规划,构造dp[n][2]数组, dp[i][0]: 在不取nums[i]的情况下,从nums[0, 1, ..., n]中能获得的最大值; dp[i][1]: 在取nums[i]的情况下,从nums[0], 1, ..., n]中能获得的最大值。 注意到,max(dp[i][0], dp[i][1])表征了从nums[0, 1, ..., n]中获得的最大值。 初始化: dp[0][0] = 0; dp[0][1] = nums[1]. 状态方程: dp[i][0] = max(dp[i-1][0...
分类:其他好文   时间:2015-05-30 16:43:39    阅读次数:108
leetCode | House Robber
简单的动态规划状态方程:dp[i]=max{dp[i-1],dp[i-2]+a[i]}.//其实就是分为选择a[i]和不选择a[i]两种情况,取最大值。代码如下:#define MAX 1000#define max(a,b) ( (a)>(b)?(a):(b) )int dp[MAX]={0};i...
分类:其他好文   时间:2015-05-30 16:28:26    阅读次数:92
LeetCode198 House Robber
You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only constraint stopping yo...
分类:其他好文   时间:2015-05-30 01:48:23    阅读次数:101
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