HDUOJ---1712 ACboy needs your help
ACboy needs your help
Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3282 Accepted Submission(s): 1703
Problem Description
ACboy has N courses this term, and he plans to spend at most M days on study.Of course,the profit he will gain from different course depending on the days he spend on it.How to arrange the M days for the N courses to maximize the profit?
Input
The input consists of multiple data sets. A data set starts with a line containing two positive integers N and M, N is the number of courses, M is the days ACboy has. Next follow a matrix A[i][j], (1<=i<=N<=100,1<=j<=M<=100).A[i][j] indicates if ACboy spend j days on ith course he will get profit of value A[i][j]. N = 0 and M = 0 ends the input.
Output
For each data set, your program should output a line which contains the number of the max profit ACboy will gain.
Sample Input
2 2
1 2
1 3
2 2
2 1
2 1
2 3
3 2 1
3 2 1
0 0
Sample Output
3
4
6
分組揹包!....
1 /*o1揹包@龔細軍*/ 2 /*維度為2的01揹包*/ 3 #include<stdio.h> 4 #include<string.h> 5 #define maxn 102 6 int dp[maxn]; 7 int aa[maxn][maxn]; 8 9 int max(int a,int b) 10 { 11 return a>b?a:b; 12 } 13 int main() 14 { 15 int m,n,i,j,k; 16 while(scanf("%d%d",&n,&m),m+n) 17 { 18 memset(dp,0,sizeof(dp)); 19 for(i=1;i<=n;i++) // class 20 for(j=1;j<=m;j++) //day 21 scanf("%d",&aa[i][j]); 22 //對每一門課程進行揹包施放 23 for(i=1;i<=n;i++) 24 { 25 for(j=m;j>=0;j--) //代表的是揹包的容量 26 { 27 for(k=1;k<=j;k++) //在這個容量內選擇一個房間去,和之前放進去的比較! 28 dp[j]=max(dp[j],dp[j-k]+aa[i][k]); 29 } 30 } 31 printf("%dn",dp[m]); 32 } 33 return 0; 34 }