ABC 124 Editorial

Problem A: Buttons

The idea of this problem is to chose the maximum button during the first button press. During the second button press, we will chose the maximum after subtracting 1 from the button we just pressed. The code bellow simulates this process:

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#include <bits/stdc++.h>

using namespace std;

int main () {

  int a, b;
  cin >> a >> b;

  if ( a > b) {
      cout << max(a,b) + max(a-1,b);
  } else {
      cout << max(a,b) + max(a,b-1);
  }

  return 0;

}