摘要: 题目: Description: Count the number of prime numbers less than a non-negative number, n. Credits:Special thanks to @mithmatt for adding this problem and 阅读全文
posted @ 2017-02-24 06:13 panini 阅读(106) 评论(0) 推荐(0)
摘要: 题目: Remove all elements from a linked list of integers that have value val. ExampleGiven: 1 --> 2 --> 6 --> 3 --> 4 --> 5 --> 6, val = 6Return: 1 --> 阅读全文
posted @ 2017-02-24 04:35 panini 阅读(99) 评论(0) 推荐(0)
摘要: 题目: Write an algorithm to determine if a number is "happy". A happy number is a number defined by the following process: Starting with any positive in 阅读全文
posted @ 2017-02-24 02:48 panini 阅读(181) 评论(0) 推荐(0)