Find X raised to power N

Easy

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Average time to solve is 10m

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Problem statement

You are given two numbers ’x’(it’s a float), and ’n’(it’s a integer).

Your task is to calculate ‘x’ raised to power ‘n’, and return it.

The expected time complexity is ’O(logn)’, and the expected space complexity is ’O(1)’, where ‘n’ is the power to which the number should be raised.

Note:

In the output, you will see the number returned by you upto 6 decimal places.

Example:

Input: ‘x’ = 10, ‘n’ = 4

Output: 10000.000000

Explanation: On raising ‘x’ to the power of ‘n’, the result is 10000.
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Detailed explanation ( Input/output format, Notes, Images )

Input Format

The first line contains two numbers, ‘x’, and ‘n’, denoting the number to be raised and the power to which it should be raised.

Output format:

Return the number as described above.

Note:-

You don't need to print anything. Just implement the given function.

Sample Input 1:

10 4

Sample Output 1 :

10000.000000

Explanation Of Sample Input 1:

Input: ‘x’ = 10, ‘n’ = 4

Output: 10000.000000

Explanation: On raising ‘x’ to the power of ‘n’, the result is 10000.
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Sample Input 2:

3.7 3

Sample Output 2:

50.653000

Explanation Of Sample Input 2:

Input: ‘x’ = 3.7, ‘n’ = 3

Output: 50.653000

Explanation: On raising ‘x’ to the power of ‘n’, the result is 50.653.

Constraints:

-9 <= n <= 9
1 <= x <= 50

Time Limit: 1-sec

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