HDOJ2602--0-1背包Bone Collector
2013-04-05 02:02
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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
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
/* 0-1背包。这个。。。不解释了 */ #include <iostream> #include <cstdio> #include <cstring> using namespace std; #define maxn 1008 int v[maxn],w[maxn]; int dp[maxn][maxn]; inline int max(int a,int b) { return a>b?a:b; } int main() { int t; scanf("%d",&t); for(int i=1;i<=t;i++) { int N,W;//有N种石头,背包总体积为W scanf("%d%d",&N,&W); for(int j=1;j<=N;j++)//我擦。scanf("%d%d",&v[j],&w[j]);我既然看了半小时才看出来~~~ { scanf("%d",&v[j]); } for(int j=1;j<=N;j++) { scanf("%d",&w[j]); } memset(dp,0,sizeof(dp)); for(int j=1;j<=N;j++) { for(int k=0;k<=W;k++) { dp[j][k]=dp[j-1][k];//注意写成(int k=w[j];k<=W;k++){dp[j][k]=max(dp[j-1][k],dp[j-1][k-w[j]]+v[j])是错的 if(k>=w[j]) { dp[j][k]=max(dp[j][k],dp[j-1][k-w[j]]+v[j]); } } } printf("%d\n",dp [W]); } return 0; } /* 不知道为什么的可以看这组数据 1 5 0 2 4 1 5 1 0 0 1 0 0 */
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