1276. Number of Burgers with No Waste of Ingredients

Given two integers tomatoSlices and cheeseSlices. The ingredients of different burgers are as follows:

• Jumbo Burger: 4 tomato slices and 1 cheese slice.
• Small Burger: 2 Tomato slices and 1 cheese slice.

Return [total_jumbo, total_small] so that the number of remaining tomatoSlices equal to 0 and the number of remaining cheeseSlices equal to 0. If it is not possible to make the remaining tomatoSlices and cheeseSlices equal to 0 return [].

class Solution {
public:
    vector<int> numOfBurgers(int A, int B) {
        if(B * 4ll < A or A & 1) return {};
        int jumbo = 0, small = B;
        A -= B * 2;
        if(A < 0 or A & 1) return {};
        jumbo += A / 2;
        small -= jumbo;
        return {jumbo, small};
    }
};