Minimum Operations To Get 'A' Exactly N Times
Minimum operations to get 'A' exactly n times: dp[i] = min(dp[d] + 1) for all divisors d of i.
650. 2 Keys Keyboard Difficulty: Medium Topics: Math, Dynamic Programming There is only one character 'A' on the screen of a notepad. You can perform one of 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 oper...