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【Leetcode】Divide Two Integers
Divide two integers without using multiplication, division and mod operator. 1 class Solution { 2 public: 3 int divide(int dividend, int divisor) ...
分类:其他好文   时间:2014-06-06 17:40:07    阅读次数:193
leetcode第一刷_Count and Say
水题。描写叙述的还挺麻烦的,实际上就是纸老虎,用两个string,一个存上一轮的结果,一个用来更新出这一轮的结果,每次扫描上一轮,统计一个字符出现的次数,然后把这个次数和字符增加到这一轮的字符串中就能够了。class Solution {public: string countAndSay(i...
分类:其他好文   时间:2014-06-05 18:34:43    阅读次数:204
leetcode--Add Binary
Given two binary strings, return their sum (also a binary string).For example,a ="11"b ="1"Return"100".public class Solution { /**The program is us...
分类:其他好文   时间:2014-06-05 14:08:35    阅读次数:188
leetcode--Populating Next Right Pointers in Each Node II
Follow up for problem "Populating Next Right Pointers in Each Node".What if the given tree could be any binary tree? Would your previous solution stil...
分类:其他好文   时间:2014-06-05 13:26:37    阅读次数:335
LeetCode Swap Nodes in Pairs
class Solution {public: ListNode *swapPairs(ListNode *head) { ListNode *a = NULL; ListNode *b = NULL; ListNode *tail = NULL; ...
分类:其他好文   时间:2014-06-05 12:55:24    阅读次数:216
leetcode--Max Points on a Line
Givennpoints on a 2D plane, find the maximum number of points that lie on the same straight line.public class Solution { /** * This program is used t....
分类:其他好文   时间:2014-06-03 17:05:21    阅读次数:434
VS 文件自动定位功能
在Visual Studio 中,当你在所有打开的文件中进行切换时,在Solution Explorer中也会自动定位到这个文件的目录下面,这个功能用来查找当前文件是非常有用。在Tools->Options中,有个Trace Active Item in Solution Exploer,把那个勾勾...
分类:其他好文   时间:2014-06-03 15:27:57    阅读次数:329
LeetCode: Recover Binary Search Tree [099]
【题目】 Two elements of a binary search tree (BST) are swapped by mistake. Recover the tree without changing its structure. Note: A solution using O(n) space is pretty straight forward. Could you devise a constant space solution? confused what "{1,#,2,3}" ...
分类:其他好文   时间:2014-06-02 10:38:17    阅读次数:246
【leetcode】 Sudoku Solver
问题: Write a program to solve a Sudoku puzzle by filling the empty cells. Empty cells are indicated by the character '.'. You may assume that there will be only one unique solution. ...
分类:其他好文   时间:2014-06-02 05:25:23    阅读次数:295
LeetCode Sort Colors
class Solution { public: void swap(int &a,int &b) { int t=a; a=b; b=t; } void ksort(int l,int h,int a[]) { if(h<l+2) return; int e=h,p=l; while(...
分类:其他好文   时间:2014-06-02 03:01:26    阅读次数:206
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