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Roman to Integer Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M.Symbol Value I 1 V 5 X 10 L 50 C 100 D 500 M 1000For example, two is written as II in Roman numeral, just two one's added together. Twelve is written as, XII, which is simply X + II. The number twenty seven is written as XXVII, which is XX + V + II.Roman numerals are usually written largest to smallest from left to.. 더보기
Power of Three Given an integer, write a function to determine if it is a power of three.Example 1:Input: 27 Output: true Example 2:Input: 0 Output: falseExample 3:Input: 9 Output: trueExample 4:Input: 45 Output: falseFollow up: Could you do it without using any loop / recursion? My solution:class Solution: def isPowerOfThree(self, n): """ :type n: int :rtype: bool """ if n == 0: return False while n % 3 == 0:.. 더보기
Fizz Buzz Write a program that outputs the string representation of numbers from 1 to n.But for multiples of three it should output “Fizz” instead of the number and for the multiples of five output “Buzz”. For numbers which are multiples of both three and five output “FizzBuzz”.Example:n = 15, Return: [ "1", "2", "Fizz", "4", "Buzz", "Fizz", "7", "8", "Fizz", "Buzz", "11", "Fizz", "13", "14", "FizzBuzz" ].. 더보기

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