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  1. // Problem: B. Worms Evolution
  2. #include <bits/stdc++.h>
  3. using namespace std;
  4.  
  5. void solve()
  6. {
  7.     int n;
  8.     cin >> n;
  9.     vector<int> a(n);
  10.     for (int i = 0; i < n; i++)
  11.     {
  12.         cin >> a[i];
  13.     }
  14.     for (int i = 0; i < n; i++)
  15.     {
  16.         for (int j = 0; j < n; j++)
  17.         {
  18.             if (j == i)
  19.                 continue;
  20.             for (int k = 0; k < n; k++)
  21.             {
  22.                 if (a[i] == (a[j] + a[k]))
  23.                 {
  24.                     if (k == i || k == j)
  25.                         continue;
  26.                     cout << i + 1 << " " << j + 1 << " " << k + 1;
  27.                     return;
  28.                 }
  29.             }
  30.         }
  31.     }
  32.     cout << -1;
  33. }
  34. int main()
  35. {
  36.     int t = 1;
  37.     // cin >> t;
  38.     while (t--)
  39.     {
  40.         solve();
  41.     }
  42. }
Success #stdin #stdout 0.01s 5320KB
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https://ideone.com/MUoT0f
language:
C++14 (gcc 8.3)
created:
4 days ago
visibility:
public

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