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  1. #include<iostream>
  2. using namespace std;
  3. int n,a[21],ans=2.1e9,sum1;
  4. void dfs(int k,int sum1){
  5. 	if(k<=n)
  6. 		dfs(k+1,sum1+a[k]),dfs(k+1,sum1);
  7. }
  8. int main(){
  9. 	scanf("%d",&n);
  10. 	for(int i=1;i<=n;i++)
  11. 		scanf("%d",&a[i]);
  12. 	dfs(n,0);
  13. 	printf("%d",sum1);
  14. 	return 0;
  15. }
Success #stdin #stdout 0.01s 5276KB
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stdin
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5 
1  3  6  9  23
stdout
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Standard output is empty
https://ideone.com/PdohZI
language:
C++14 (gcc 8.3)
created:
20 days ago
visibility:
public

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