Pow(x, n)

def my_pow_opt(x: float, n: int) -> float:
    def helper(base, exp):
        if exp == 0: return 1
        if exp < 0: return 1 / helper(base, -exp)
        half = helper(base, exp // 2)
        if exp % 2 == 0:
            return half * half
        else:
            return base * half * half
    return helper(x, n)

def my_pow_brute(x: float, n: int) -> float:
    if n == 0: return 1.0
    if n < 0:
        x = 1 / x
        n = -n
    res = 1.0
    for _ in range(n):
        res *= x
    return res