LeetCode 345. Reverse Vowels of a String
Write a function that takes a string as input and reverse only the vowels of a string.
Example 1:
Given s = "hello", return "holle".
Example 2:
Given s = "leetcode", return "leotcede".
编写函数输入一个字符串 ...
Write a function that takes a string as input and returns the string reversed.
Example:
Given s = "hello", return "olleh".
编写函数输入字符串，返回其逆置。
例如输入s = "hello"，返回"olleh"。
简单题，略。
class Solution(object):
def reverseString ...
Given a positive integer n, break it into the sum of at least two positive integers and maximize the product of those integers. Return the maximum product you can get.
For example, given n = 2, return ...
Given an integer (signed 32 bits), write a function to check whether it is a power of 4.
Example:
Given num = 16, return true. Given num = 5, return false.
Follow up: Could you solve ...
LeetCode 341. Flatten Nested List Iterator
Given a nested list of integers, implement an iterator to flatten it.
Each element is either an integer, or a list -- whose elements may also be integers or other lists.
Example 1:
Given ...