USACO 2.3 Money Systems

TASK: money
LANG: C++

Compiling...
Compile: OK

Executing...
   Test 1: TEST OK [0.000 secs, 5136 KB]
   Test 2: TEST OK [0.000 secs, 5136 KB]
   Test 3: TEST OK [0.000 secs, 5136 KB]
   Test 4: TEST OK [0.000 secs, 5136 KB]
   Test 5: TEST OK [0.000 secs, 5136 KB]
   Test 6: TEST OK [0.027 secs, 5136 KB]
   Test 7: TEST OK [0.000 secs, 5136 KB]
   Test 8: TEST OK [0.000 secs, 5136 KB]
   Test 9: TEST OK [0.000 secs, 5136 KB]
   Test 10: TEST OK [0.000 secs, 5136 KB]
   Test 11: TEST OK [0.000 secs, 5136 KB]
   Test 12: TEST OK [0.000 secs, 5136 KB]
   Test 13: TEST OK [0.000 secs, 5136 KB]

All tests OK.
 1 /*
 2 PROG: money
 3 ID: jiafeim1
 4 LANG: C++
 5 */
 6 
 7 #include <algorithm>
 8 #include <iostream>
 9 #include <fstream>
10 
11 using namespace std;
12 
13 int m_num;
14 long target;
15 
16 int money[28];
17 
18 long long amount[10003][27]={0};
19 int main()
20 {
21     std::ifstream fin("money.in");
22     std::ofstream fout("money.out");
23     
24     fin>>m_num>>target;
25 
26     for(int i = 0;i!=m_num;++i)
27     {
28         fin>>money[i];
29     }
30 
31     for(long i = 1;i<=target;++i)
32     {
33         for(int j = 0;j!=m_num;++j)
34         {
35 
36             if(i < money[j]) continue;
37             if(i == money[j])
38             {
39                 amount[i][j] += 1;
40             }
41             for(int z = 0 ;z<=j;++z)
42             {
43                 if(amount[i-money[j]][z]!=0)
44                     amount[i][j]+=amount[i-money[j]][z];
45             }
46         }
47     }
48     long long temp = 0;
49     for(int i = 0 ;i!=m_num;++i)
50     {
51         temp+=amount[target][i];
52     }
53     fout<<temp<<endl;
54     fin.close();
55     fout.close();
56 
57 }
posted @ 2011-05-06 20:35  幻魇  阅读(254)  评论(0)    收藏  举报