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.

Medium

There is only one character 'A' on the screen of a notepad. You can perform two operations on this notepad for each step:

• Copy All: You can copy all the characters present on the screen (a partial copy is not allowed).
• Paste: You can paste the characters which are copied last time.

Given an integer n, return the minimum number of operations to get the character 'A' exactly n times on the screen.

Example 1:

Input: n = 3

Output: 3

Explanation:

Initially, we have one character ‘A’.

In step 1, we use Copy All operation.

In step 2, we use Paste operation to get ‘AA’.

In step 3, we use Paste operation to get ‘AAA’.

Example 2:

Input: n = 1

Output: 0

Constraints:

• 1 <= n <= 1000

Constructor Summary

Constructors

Constructor and Description
Solution()

Method Summary

Modifier and Type	Method and Description
int	minSteps(int n)

Methods inherited from class java.lang.Object

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

Constructor Detail

Solution

public Solution()

Method Detail

minSteps

public int minSteps(int n)