(HW)CoinsCombination(Java)

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 1 public class test
 2 
 3     public static void main(String[] args)
 4     
 5         Vector<Integer> v = new Vector<>();
 6         v.add(1);
 7         v.add(2);
 8         v.add(5);
 9         Vector<Integer> solution = new Vector<>();
10         Scanner input = new Scanner(System.in);
11         int dst = input.nextInt();
12         System.out.println(CoinsCombination(v, solution, 0, 0, dst));
13         input.close();
14         
15     
16     public static int CoinsCombination(Vector<Integer> v, Vector<Integer> solution, int start, int sum, int dst)
17     
18         if(dst <= 0)
19             return 0;
20         if(sum == dst)
21         
22             System.out.println(solution.toString());
23             return 1;
24         
25         if(sum > dst)
26             return 0;
27         
28         int count = 0;
29         for(int i = start; i < v.size(); i++)
30         
31             solution.add(v.get(i));
32             sum += v.get(i);
33             count += CoinsCombination(v, solution, i, sum, dst);
34             solution.remove(solution.size() - 1);
35             sum -= v.get(i);
36         
37         
38         return count;
39     
40 

 

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