【hdu - 2602 Bone Collector(动态规划、01背包)】
2012-07-14 10:42
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Bone Collector
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 12318 Accepted Submission(s): 4787
[align=left]Problem Description[/align]
Many years ago , in Teddy’s hometown there was a man who was called “Bone Collector”. This man like to collect varies of bones , such as dog’s , cow’s , also he went to the grave …
The bone collector had a big bag with a volume of V ,and along his trip of collecting there are a lot of bones , obviously , different bone has different value and different volume, now given the each bone’s value along his trip , can you calculate out the maximum of the total value the bone collector can get ?
![](http://acm.hdu.edu.cn/data/images/C154-1003-1.jpg)
[align=left]Input[/align]
The first line contain a integer T , the number of cases.
Followed by T cases , each case three lines , the first line contain two integer N , V, (N <= 1000 , V <= 1000 )representing the number of bones and the volume of his bag. And the second line contain N integers representing the value of each bone. The third line contain N integers representing the volume of each bone.
[align=left]Output[/align]
One integer per line representing the maximum of the total value (this number will be less than 231).
[align=left]Sample Input[/align]
1
5 10
1 2 3 4 5
5 4 3 2 1
[align=left]Sample Output[/align]
14
[align=left]Author[/align]
Teddy
[align=left]Source[/align]
HDU 1st “Vegetable-Birds Cup” Programming Open Contest
[align=left]Recommend[/align]
lcy
// Project name : 2602 ( Bone Collector ) // File name : main.cpp // Author : Izumu // Date & Time : Sat Jul 14 10:03:36 2012 #include <iostream> #include <stdio.h> #include <string> #include <cmath> #include <algorithm> using namespace std; #define MAXN 1010 int value[MAXN]; int cost[MAXN]; int dp[MAXN][MAXN]; int n, v; int max(int a, int b) { return (a > b)? a: b; } void DynamicProgramming() { // init for dp[][] for (int i = 0; i <= n; i++) { for (int j = 0; j <= v; j++) { dp[i][j] = 0; } } for (int i = 1; i <= n; i++) { for (int j = 0; j <= v; j++) { if (cost[i] <= j) { dp[i][j] = max( dp[i-1][j], dp[i-1][j-cost[i]] + value[i] ); } else { dp[i][j] = dp[i-1][j]; } } } } int main() { int t; cin >> t; while (t--) { cin >> n >> v; for (int i = 1; i <= n; i++) { cin >> value[i]; } for (int i = 1; i <= n; i++) { cin >> cost[i]; } DynamicProgramming(); cout << dp [v] << endl; } return 0; } // end // ism
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