Package g0001_0100.s0050_powx_n

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    50 - Pow(x, n).

    Medium

    Implement pow(x, n), which calculates x raised to the power n (i.e., <code>x<sup>n</sup></code>).

    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<sup>\-2</sup> = 1/2<sup>2</sup> = 1/4 = 0.25

    Constraints:

    • -100.0 &lt; x &lt; 100.0

    • <code>-2<sup>31</sup><= n <= 2<sup>31</sup>-1</code>

    • n is an integer.

    • <code>-10<sup>4</sup><= x<sup>n</sup><= 10<sup>4</sup></code>

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Double myPow(Double x, Integer n)

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait