# 650. 2 Keys Keyboard """ 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 characters present on the screen (a partial copy is not allowed). 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. """ class Solution(object): def minSteps(self, n): """ :type n: int :rtype: int """ for i in range(2, int(n**0.5) + 1): if n % i == 0: return self.minSteps(n / i) + i return 0 if n == 1 else n if __name__ == "__main__": obj = Solution() print(obj.minSteps(3)) print(obj.minSteps(1))