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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. vector<vector<int>> dp;
  5. int possible(int sum, int n, int arr[])
  6. {
  7. 	for(int i=1;i<sum;i++){
  8. 		dp[i][0] = 0;
  9. 	}
  10. 	for(int i=0;i<n;i++){
  11. 		dp[0][i] = 1;
  12. 	}
  13. 	for(int i=1;i<sum;i++){
  14. 		for(int j=1;j<n;j++){
  15. 			dp[i][j] = dp[i][j-1];
  16. 			if(arr[j-1] <= i){
  17. 				dp[i][j] += dp[i-arr[j-1]][j];
  18. 			}
  19. 		}
  20. 	}
  21.  
  22. 	return dp[sum][n];
  23.  
  24. }
  25.  
  26.  
  27.  
  28.  
  29. int main() {
  30. 	// your code goes here
  31. 	return 0;
  32. 	int n;
  33. 	cin >> n;
  34. 	int arr[n], sum;
  35. 	cin >> sum;
  36. 	for(int i: arr){
  37. 		cin >> arr[i];
  38. 	}
  39.  
  40. 	int res = possible(sum, n, arr);
  41. 	cout << res;
  42. }
Success #stdin #stdout 0s 5428KB
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stdin
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5
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1 2 3 5 6
stdout
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Standard output is empty
https://ideone.com/KTo6h6
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
public

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