<doocs>1518.Water Bottles_1.py
def numWaterBottles( numBottles: int, numExchange: int) -> int:
    ans = numBottles
    while numBottles >= numExchange:
        numBottles -= numExchange - 1
        ans += 1
    return ans
def sample_funcname ( var_0 : int , var_2 : int ) -> int :
    var_3 = var_0
    while var_0 >= var_2 :
        var_0 -= var_2 - 1
        var_3 += 1
    return var_3
