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  1. #include <iostream>
  2. #include <bits/stdc++.h>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	// your code goes here
  7.  
  8. 	vector<int>arr={1,1,1,-1,1,2,3,4,5};
  9. 	int k=3;
  10. 	//Brute force->
  11. 	int n=arr.size();
  12. 	int count=0;
  13. 	for(int i=0;i<n;i++){
  14. 		int sum=0;
  15. 		for(int j=i;j<n;j++){
  16.  
  17. 			sum+=arr[j];
  18. 			if(sum==k){
  19. 				count++;
  20.                 //can't use break in case -ve nos. present in array.
  21. 			}
  22. 		}
  23. 	}
  24. 	cout<<count;
  25. 	return 0;
  26. }
Success #stdin #stdout 0.01s 5312KB
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stdin 
Standard input is empty
stdout 
5
https://ideone.com/NMZQ8x
subarray sum=k (brute force)
language:
C++ (gcc 8.3)
created:
7 days ago
visibility:
public

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