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Practice 2 Keys Keyboard

Read the task, work through the examples, and check your approach against the constraints. Use the original LeetCode task for coding and submissions.

Medium#650
LeetCode Problem

2 Keys Keyboard

Problem Statement

The notepad initially contains one A. In one operation, Copy All copies the entire current text into a clipboard, while Paste appends the clipboard text to the notepad. Partial copies are not allowed. Return the fewest operations needed to display exactly n copies of A.

Source: 2 Keys Keyboard on LeetCode. Use the original task for its coding environment and submissions.

Examples

# Example 1

Input
n = 3
Output
3

# Example 2

Input
n = 1
Output
0

Constraints

1 <= n <= 1000

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