HDOJ 2602 Bone Collector(01背包)
2015-08-18 15:39
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Bone Collector
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 39999 Accepted Submission(s): 16595
[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 ?
[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
ac代码:
#include<stdio.h> #include<string.h> #include<math.h> #include<iostream> #include<algorithm> #define MAXN 10010 #define INF 0xfffffff #define max(a,b) a>b?a:b #define min(a,b) a>b?b?a using namespace std; struct s { int p; int v; }a[MAXN]; bool cmp(s a,s b) { if(a.v==b.v) return a.p<b.p; return a.v>b.v; } int dp[MAXN]; int main() { int n,m; int i,j; int t; scanf("%d",&t); while(t--) { scanf("%d%d",&n,&m); for(i=0;i<n;i++) scanf("%d",&a[i].v); for(i=0;i<n;i++) scanf("%d",&a[i].p); sort(a,a+n,cmp); memset(dp,0,sizeof(dp)); for(i=0;i<n;i++) { for(j=m;j>=a[i].p;j--) { dp[j]=max(dp[j],dp[j-a[i].p]+a[i].v); } } printf("%d\n",dp[m]); } return 0; }
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