Package g0601_0700.s0650_2_keys_keyboard

Class Solution

java.lang.Object

g0601_0700.s0650_2_keys_keyboard.Solution

public class Solution
extends Object

650 - 2 Keys Keyboard.<p>Medium</p> <p>There is only one character <code>'A'</code> on the screen of a notepad. You can perform two operations on this notepad for each step:</p> <ul> <li>Copy All: You can copy all the characters present on the screen (a partial copy is not allowed).</li> <li>Paste: You can paste the characters which are copied last time.</li> </ul> <p>Given an integer <code>n</code>, return <em>the minimum number of operations to get the character</em> <code>'A'</code> <em>exactly</em> <code>n</code> <em>times on the screen</em>.</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> n = 3</p> <p><strong>Output:</strong> 3</p> <p><strong>Explanation:</strong></p> <p>Initially, we have one character &lsquo;A&rsquo;.</p> <p>In step 1, we use Copy All operation.</p> <p>In step 2, we use Paste operation to get &lsquo;AA&rsquo;.</p> <p>In step 3, we use Paste operation to get &lsquo;AAA&rsquo;.</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> n = 1</p> <p><strong>Output:</strong> 0</p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= n <= 1000</code></li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	minSteps(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

minSteps

public int minSteps(int n)