Package g0101_0200.s0172_factorial_trailing_zeroes

Class Solution

java.lang.Object

g0101_0200.s0172_factorial_trailing_zeroes.Solution

public class Solution
extends Object

172 - Factorial Trailing Zeroes.<p>Medium</p> <p>Given an integer <code>n</code>, return <em>the number of trailing zeroes in</em> <code>n!</code>.</p> <p>Note that <code>n! = n * (n - 1) * (n - 2) * ... * 3 * 2 * 1</code>.</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> n = 3</p> <p><strong>Output:</strong> 0</p> <p><strong>Explanation:</strong> 3! = 6, no trailing zero.</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> n = 5</p> <p><strong>Output:</strong> 1</p> <p><strong>Explanation:</strong> 5! = 120, one trailing zero.</p> <p><strong>Example 3:</strong></p> <p><strong>Input:</strong> n = 0</p> <p><strong>Output:</strong> 0</p> <p><strong>Constraints:</strong></p> <ul> <li><code>0 <= n <= 10⁴</code></li> </ul> <p><strong>Follow up:</strong> Could you write a solution that works in logarithmic time complexity?</p>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	trailingZeroes(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

trailingZeroes

public int trailingZeroes(int n)