2017年1月14日
83. 移除已排序链表中重复的节点 Remove Duplicates from Sorted List
摘要： Given a sorted linked list, delete all duplicates such that each element appear only once.For example,Given 1->1->2, return 1->2.Given 1->1->2->3->3, return 1->2->3.移除单链表中重复的节点public class Solution { ... 阅读全文
posted @ 2017-01-14 12:04 xiejunzhao 阅读(161) 评论(0) 推荐(0)
476. 求二进制的补数 Number Complement
摘要： Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation.Note:The given integer is guaranteed to fit within the range of a 32-bi... 阅读全文
posted @ 2017-01-14 11:56 xiejunzhao 阅读(161) 评论(0) 推荐(0)
70. 爬梯子问题（斐波那契数列）Climbing Stairs
摘要： You are climbing a stair case. It takes n steps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?假设你在爬一个楼梯，该楼梯有n阶，你有两种爬法，每次爬一阶或者两阶。请问... 阅读全文
posted @ 2017-01-14 11:56 xiejunzhao 阅读(28) 评论(0) 推荐(0)