#include #include using namespace std; struct 
BTNode { int v; // default positive Integer. BTNode *pLeft; BTNode *pRight; 
BTNode(int x) : v(x), pLeft(...
                            
                            
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其他好文   时间:
2014-07-22 23:00:54   
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                                Permutation p is
 an ordered set of integers p1,??p2,??...,??pn,
 consisting of n distinct positive integers, each of them doesn't exceed n.
 We'll denote the i-th element of permutation p as pi.
...
                            
                            
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其他好文   时间:
2014-07-22 23:00:15   
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312
                             
                         
                    
                        
                            
                            
                                Subtraction Game 1
Chef is playing a game on a sequence of N positive integers, say A1, A2, ... AN. The game is played as follows.
If all the numbers are equal, the game ends.Otherwise
Sele...
                            
                            
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其他好文   时间:
2014-05-07 03:14:01   
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280
                             
                         
                    
                        
                            
                            
                                Problem DescriptionThe expression N!, read as 
"N factorial," denotes the product of the first N positive integers, where N is 
nonnegative. So, for exa...
                            
                            
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其他好文   时间:
2014-05-07 00:11:55   
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353
                             
                         
                    
                        
                            
                            
                                For a given positive integer n, please find the smallest positive integer x that we can find an integer y such that y^2 = n +x^2.
 
Input
The first line is an integer T, which is the the...
                            
                            
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其他好文   时间:
2014-05-06 19:21:10   
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290
                             
                         
                    
                        
                            
                            
                                Problem Description
Given an positive integer A (1 
For example, given A = 26, we can write A in binary form as 11010, so the lowest bit of A is 10, so the output should be 2.
Another example...
                            
                            
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其他好文   时间:
2014-05-05 13:22:39   
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394
                             
                         
                    
                        
                            
                            
                                Tomya is a girl. She loves Chef Ciel very much.
Tomya like a positive integer p, and now she wants to get a receipt of Ciel's restaurant whose total price is exactly p.
The current menus of Ciel's...
                            
                            
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其他好文   时间:
2014-05-04 18:53:40   
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317
                             
                         
                    
                        
                            
                            
                                本题就是测试读入数据的速度的。
如果有大量的数据读入,使用cin是很慢的。
那么使用scanf那么会快很多,但是如果数据量更大的话那么就还是不够快了。
所以这里使用fread。
首先开一个buffer,然后使用fread大块大块地读入数据就可以非常快地读入了。
题目如下:
Input
The input begins with two positive...
                            
                            
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其他好文   时间:
2014-05-03 16:13:21   
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340
                             
                         
                    
                        
                            
                            
                                Number Sequence
Time Limit: 1000MS
 
Memory Limit: 10000K
Total Submissions: 33215
 
Accepted: 9490
Description
A single positive integer i is given. Write a program to f...
                            
                            
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其他好文   时间:
2014-05-01 22:06:17   
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437
                             
                         
                    
                        
                            
                            
                                19. 二叉树的镜像(递归)即:交换所有节点的左右子树。从下往上 或 从上往下 
都可以。#include #include using namespace std;struct BTNode{	int v; // default 
positive Integer.	BTNode *pLeft;	B....
                            
                            
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其他好文   时间:
2014-05-01 12:41:11   
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416