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LeetCode 之 Pow(x, n)(分治法)
LeetCode 之 Pow(x, n),本文给出基于分治算法思想分析与二分实现表达式,最后,贴上C++详细源码实现。...
分类:其他好文   时间:2015-08-04 09:29:41    阅读次数:166
[CareerCup] 4.5 Validate Binary Search Tree 验证二叉搜索树
4.5 Implement a function to check if a binary tree is a binary search tree.LeetCode上的原理,请参见我之前的博客Validate Binary Search Tree 验证二叉搜索树。
分类:其他好文   时间:2015-08-04 00:37:06    阅读次数:97
leetcode-232-Implement Queue using Stacks
Implement Queue using Stacks   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 of queue.pe...
分类:其他好文   时间:2015-08-03 19:14:35    阅读次数:133
leetcode-225-Implement Stack using Queues
Implement Stack using Queues    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() -- ...
分类:其他好文   时间:2015-08-03 19:13:06    阅读次数:150
[LeetCode-JAVA] Next Permutation
题目:Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers.If such arrangement is not poss...
分类:编程语言   时间:2015-08-03 16:46:51    阅读次数:165
Binary Search Tree Iterator ***
Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST.Callingnext()will return the next...
分类:其他好文   时间:2015-08-03 13:01:20    阅读次数:116
C语言:自定义一个查找字串的功能函数,类似于<string.h>中的strstr()
//自定义一个字符串字串查找标准库函数strstr()#include#includechar* myStrstr(char *str1,char *str2);int main(){ char *str1 = "hello worl world ld"; char *str2 = ...
分类:编程语言   时间:2015-08-02 23:11:37    阅读次数:208
【LeetCode】225 - Implement Stack using Queues
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()...
分类:其他好文   时间:2015-08-02 21:24:47    阅读次数:121
Implement Trie (Prefix Tree) -- leetcode
Implement a trie with insert, search, and startsWith methods. Note: You may assume that all inputs are consist of lowercase letters a-z. 基本思路, 作一个26叉树。 本来想作一个27叉,用额外一叉,表示字符串的结束字符('\0'). 但...
分类:其他好文   时间:2015-08-02 20:06:06    阅读次数:138
LeetCode OJ 之 LRU Cache(LRU缓存)
题目: Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and set. get(key) - Get the value (will always be positive) of th...
分类:系统相关   时间:2015-08-02 16:52:50    阅读次数:212
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