2017年5月7日
367. Valid Perfect Square
摘要： Given a positive integer num, write a function which returns True if num is a perfect square else False. Note: Do not use any built-in library functio 阅读全文
posted @ 2017-05-07 16:43 anghostcici 阅读(87) 评论(0) 推荐(0)
122. Best Time to Buy and Sell Stock II
摘要： Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may comple 阅读全文
posted @ 2017-05-07 09:54 anghostcici 阅读(104) 评论(0) 推荐(0)