HDU 2602 Bone Collector
2013-12-15 23:02
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Bone Collector
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 23264 Accepted Submission(s): 9443
Problem Description
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 ?
Input
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.
Output
One integer per line representing the maximum of the total value (this number will be less than 231).
Sample Input
1 5 10 1 2 3 4 5 5 4 3 2 1
Sample Output
14
Author
Teddy
Source
HDU 1st “Vegetable-Birds
Cup” Programming Open Contest
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lcy | We have carefully selected several similar problems for you: 1203 2159 2955 1171 2191
典型的01背包题目,说实话我是看了别人的算法模板的,还不是很理解,明天接着刷类似的题目吧,期待会有所领会。
代码如下:
#include <stdio.h> #include <string.h> #define rep(i,k,n) for(int i=(k); i<(n); i++) #define cls(x,a) memset(x,a,sizeof(x)) #define maxn 10010 int a[maxn],b[maxn]; int main(void){ int n,m,t; int dp[maxn]; scanf("%d",&t); rep(i,0,t){ scanf("%d%d",&n,&m); rep(i,0,n) scanf("%d",&a[i]); rep(i,0,n) scanf("%d",&b[i]); cls(dp,0); rep(i,0,n) for(int j=m; j>=b[i]; j--){ if (dp[j]<dp[j-b[i]]+a[i]) dp[j] = dp[j-b[i]]+a[i]; } printf("%d\n",dp[m]); } }
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