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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.  
  5. int main() {
  6.     vector<int> arr = {10, 2, -2, -20, 10};
  7.     int k = -10;
  8.     int count = 0;
  9.  
  10.     for(int i = 0; i < arr.size(); i++) {
  11.         int sum = 0;
  12.         for(int j = i; j < arr.size(); j++) {
  13.             sum += arr[j];
  14.             if(sum == k) count++;
  15.         }
  16.     }
  17.  
  18.     cout << "Count of subarrays with sum " << k << " = " << count << endl;
  19.     return 0;
  20. }
Success #stdin #stdout 0s 5320KB
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Standard input is empty
stdout
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Count of subarrays with sum -10 = 3
https://ideone.com/U1d0TY
language:
C++ (gcc 8.3)
created:
7 hours ago
visibility:
public

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