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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int a[100000], b[10000], n,m , dem=0;
  4. vector <int> aa[100];
  5. int ck(int b[])
  6. {
  7. 	int tong=0;
  8. 	for(int i=1;i<=n;i++)
  9. 	{
  10. 		if(b[i]==1) tong += a[i-1];
  11. 	}
  12. 	if(tong ==m) return 1;
  13. 	return 0;
  14. }
  15.  
  16.  
  17. void out()
  18. {
  19. 	if(ck(b)) 
  20. 	{
  21. 		for(int i=1;i<=n;i++) if(b[i]==1) aa[dem].push_back(a[i-1]);
  22. 		dem++;
  23. 	}
  24. }
  25. void bk(int i)
  26. {
  27. 	for(int j=0;j<=1;j++)
  28. 	{
  29. 		b[i]= j;
  30. 		if(i==n) out();
  31. 		else bk(i+1);
  32. 	}
  33. }
  34. int main()
  35. {
  36. 	cin>> n>> m;
  37. 	for(int i=0;i<n;i++) cin>> a[i];
  38. 	sort(a,a+n);
  39. 	bk(1);
  40. 	for(int i=dem-1;i>=0;i--)
  41. 	{
  42. 		for(int j=0;j<aa[i].size();j++) cout<< aa[i][j];
  43. 		cout<< endl;
  44. 	}
  45. }
Success #stdin #stdout 0.01s 5536KB
comments (?)
stdin
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8  53
15  22  14  26  32  9  16  8
stdout
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891422
8141516
151622
https://ideone.com/V6ZgAp
language:
C++14 (gcc 8.3)
created:
1 year ago
visibility:
public

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