Medium

Quiz

#50 Pow(x, n)

APPROACH

Implement pow(x, n), which calculates x raised to the power n (i.e., xⁿ).

Example 1:

Input: x = 2.00000, n = 10

Output: 1024.00000

Example 2:

Input: x = 2.10000, n = 3

Output: 9.26100

Example 3:

Input: x = 2.00000, n = -2

Output: 0.25000

Explanation: 2-2 = 1/22 = 1/4 = 0.25

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What is the optimal approach for this problem?