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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.     int arr[] = {0, -1, 2, -3, 1};
  6.     int n = 5;
  7.     int x = 0;
  8.     bool found = false;
  9.  
  10.     for(int i = 0; i < n; i++) {
  11.         for(int j = i + 1; j < n; j++) {
  12.             if(arr[i] + arr[j] == x) {
  13.                 found = true;
  14.                 break;
  15.             }
  16.         }
  17.         if(found) break;
  18.     }
  19.  
  20.     if(found) cout << "true" << endl;
  21.     else cout << "false" << endl;
  22.  
  23.     return 0;
  24. }
  25.  
Success #stdin #stdout 0.01s 5320KB
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stdin
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Standard input is empty
stdout
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true
https://ideone.com/9BpOCI
language:
C++ (gcc 8.3)
created:
8 hours ago
visibility:
public

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