摘要：
Implement the following operations of a queue using stacks.push(x) -- Push element x to the back of queue.pop() -- Removes the element from in front o... 阅读全文
posted @ 2015-07-30 21:13 骄阳照林 阅读(104) 评论(0) 推荐(0) 编辑
摘要：
Implement the following operations of a stack using queues.push(x) -- Push element x onto stack.pop() -- Removes the element on top of the stack.top()... 阅读全文
posted @ 2015-07-30 20:25 骄阳照林 阅读(162) 评论(0) 推荐(0) 编辑
摘要：
Find the total area covered by tworectilinearrectangles in a2Dplane.Each rectangle is defined by its bottom left corner and top right corner as shown ... 阅读全文
posted @ 2015-07-30 16:42 骄阳照林 阅读(92) 评论(0) 推荐(0) 编辑
摘要：
Reverse a singly linked list.解法一：记录单链表每个节点的val,然后重新为单链表赋值。(取巧，仅仅是将val部分改变，原始node节点并没有改变)代码如下：/** * Definition for singly-linked list. * public class L... 阅读全文
posted @ 2015-07-30 15:35 骄阳照林 阅读(108) 评论(0) 推荐(0) 编辑
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Given two stringssandt, determine if they are isomorphic.Two strings are isomorphic if the characters inscan be replaced to gett.All occurrences of a ... 阅读全文
posted @ 2015-07-30 14:08 骄阳照林 阅读(130) 评论(0) 推荐(0) 编辑
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Description:Count the number of prime numbers less than a non-negative number,n.Credits:Special thanks to@mithmattfor adding this problem and creating... 阅读全文
posted @ 2015-07-27 19:17 骄阳照林 阅读(105) 评论(0) 推荐(0) 编辑
摘要：
Remove all elements from a linked list of integers that have valueval.ExampleGiven:1 --> 2 --> 6 --> 3 --> 4 --> 5 --> 6,val= 6Return:1 --> 2 --> 3 --... 阅读全文
posted @ 2015-07-27 15:50 骄阳照林 阅读(132) 评论(0) 推荐(0) 编辑
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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 integer... 阅读全文
posted @ 2015-07-27 15:27 骄阳照林 阅读(103) 评论(0) 推荐(0) 编辑
摘要：
You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only constraint stopping yo... 阅读全文
posted @ 2015-07-27 14:33 骄阳照林 阅读(115) 评论(0) 推荐(0) 编辑