轉載請注明出處： http://blog.csdn.net/u012860063
題目鏈接： http://acm.hdu.edu.cn/showproblem.php?pid=1712
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.
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
題意：一開始輸入n和m，n代表有n門課，m代表你有m天，
然后給你一個數組，val[i][j]，代表第i門課，在通過j天去修，
會得到的分數。求在m天能得到的最大分數。
#include <cstdio>
#include <cstring>
#define N 147
int max(int a, int b)
{
if(a > b)
return a;
return b;
}
int main()
{
int n,m,a[N][N],dp[N];
int i, j, k;
while(~scanf("%d%d",&n,&m)&&( n || m))
{
memset(dp,0,sizeof(dp));
for(i = 1; i <=n ; i++)
{
for(j = 1; j <= m ;j++)
scanf("%d",&a[i][j]);
}
for(i = 1 ; i <= n ; i++)//第一重循環：分組數
{
for(j = m ; j >= 1 ; j--) //第二重循環：容量體積
{
for(k = 1 ; k <= j ; k++) //第三重循環：屬于i組的k
{
dp[j]=max(dp[j],dp[j-k]+a[i][k]);
}
}
}
printf("%d\n",dp[m]);
}
return 0;
}
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