Package g0001_0100.s0050_powx_n

Class Solution

java.lang.Object

g0001_0100.s0050_powx_n.Solution

public class Solution
extends Object

50 - Pow(x, n).<p>Medium</p> <p>Implement <a href="http://www.cplusplus.com/reference/valarray/pow/" target="_top">pow(x, n)</a>, which calculates <code>x</code> raised to the power <code>n</code> (i.e., <code>xⁿ</code>).</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> x = 2.00000, n = 10</p> <p><strong>Output:</strong> 1024.00000</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> x = 2.10000, n = 3</p> <p><strong>Output:</strong> 9.26100</p> <p><strong>Example 3:</strong></p> <p><strong>Input:</strong> x = 2.00000, n = -2</p> <p><strong>Output:</strong> 0.25000</p> <p><strong>Explanation:</strong> 2^-2 = 1/2² = 1/4 = 0.25</p> <p><strong>Constraints:</strong></p> <ul> <li><code>-100.0 < x < 100.0</code></li> <li><code>-2³¹ <= n <= 2³¹-1</code></li> <li><code>-10⁴ <= xⁿ <= 10⁴</code></li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
double	myPow(double x, int n)

Methods inherited from class java.lang.Object

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

Constructor Details

Solution

public Solution()

Method Details

myPow

public double myPow(double x,
 int n)