def BuyBurger(n, m):
    total_money = n
    total_friends = m
    price = 10
    min_price = 5
    discount = 1
    count = 0
    cost = 0
 
    # 先计算能凑出多少个 5 元的汉堡
    while total_money + total_friends >= price - min_price:
        price -= discount
        total_money += total_friends
        count += 1
    # 计算剩下的钱还能买几个原价的汉堡
    remaining_money = total_money
    while remaining_money >= 10:
        count += 1
        remaining_money -= 10
    cost = 10 * (count - (total_friends + n - (10 - min_price) * count) // (10 - min_price)) + min_price * ((total_friends + n - (10 - min_price) * count) // (10 - min_price))
    return [count, cost]
 

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MjAKMTg=

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