maxTime

#include <iostream>

using namespace std;

int max = 0;

//neu 1 trong 2 bang 0 thi ket thuc, a tang 1 thi b giam 2 va nguoc lai
void maxTime(int a, int b, int count = 0)
{
    if (a == 0 || b == 0)
    {
        if (count > max) max = count;
        return;
    }
    if (a <= 2 && b <= 2)
    {
        count += a > b ? a : b;
        if (count > max) max = count;
        return;
    }

    if (a <= 2 && b >= 2)
    {
        maxTime(a + 1, b - 2, count + 1);
        return;
    }

    if (b <= 2 && a >= 2)
    {
        maxTime(a - 2, b + 1, count + 1);
        return;
    }

    maxTime(a + 1, b - 2, count + 1);
    maxTime(a - 2, b + 1, count + 1);
}


void main()
{
    maxTime(12, 3);
    cout << max;
}