C ++ uses memory ing files to process large files

Introduction file operations are one of the most basic functions of applications. Both Win32 APIs and MFC provide functions and classes that support file processing. Commonly Used functions include CreateFile () and WriteFile () of Win32 APIs ()

In-depth mode setup: compile an Iterator compatible with STL algorithm in the Iterator Mode

[Cpp]# Include # Include  Class Seat{Public:Seat (int no): no _ (no ){}Int no _;};  Class Table{Static const std: size_t BEGIN_SEAT = 1;Static const std: size_t INVALID_SEAT = 0;Static const std: size_t END_SEAT = 9;Public:Table (){Seats _.

Getline () function

I searched the internet for the getline () function for a long time, mostly for C ++. There are many heavy-duty functions in the cloud, and there are no instances. Actually, there is no getline () required by myself () function. Therefore, I ran man

C ++ Constructor

The knowledge of c ++ constructor has been introduced in a variety of c ++ textbooks. However, beginners often do not pay much attention to the characteristics and usage of the constructor, therefore, based on my own c ++ programming experience, I

C ++ Queue Example Rearranging RailRoad Cars

Before in article C ++ Stack Example Rearranging RailRoad Cars train compartment rescheduling problems we use three stacks to solve the "Rearranging RailRoad Cars" problem. in this article, we will use two queues to solve the

CF 312B (Archer-proportional Sequence Limit summation)

B. ArcherTime limit per test2 secondsMemory limit per test256 megabytesInputstandard inputOutputstandard outputSmallR is an archer. smallR is taking a match of archer with Zanoes. they try to shoot in the target in turns, and SmallR shoots first.

Poj 1042 gone fishing

This is a standard greedy algorithm. The general meaning of the question is: Now I am giving you some water ponds. Now the child is in the pond 1. Now I am going to fish. At the beginning, Each pond has a fixed number of fish, the number of fish

C ++ combination

For a combination, such as C (), we can use the formula to find the number of the numbers, but how can we express these numbers? Code:   # include # include # define MAXN 100 using namespace std; int a [MAXN]; int count = 0; void assem (int m,

Poj 1118 Lining Up (water question)

# Include using namespace std; # define MAX 702/* 284 K 422 MS */typedef struct _ point {int x; int y;} point; point p [MAX]; bool judge (point a, point B, point c) {return (. y-b.y) * (c. x-b.x)-(c. y-b.y) * (. x-b.x);} int main () {int n; while

Hdu 1059 exercise dp (multiple backpacks)

#include#include#include#includeusing namespace std;const int size = 600000;int sum;int dp[size];void zeroOnePack(int cost,int weight){int i;for(i=sum;i>=cost;i--)dp[i] = max(dp[i],dp[i-cost]+weight);}void completePack(int cost,int weight){int i;for(

Ultraviolet A 10344 23 out of 5 (search + full sorting)

Question: There are five counts and three arithmetic operations: +-*. can I obtain 23 for each arithmetic operation on five counts. Train of Thought: simply search. Use next_permutation to find the sorting and search again. //0 KB719 ms#include

HDU1204 candy wars (probability theory)

On the evening of the end of the birthday Party, there were some sweets left, And Gandon wanted to take all of them away. Speakless said, "Yes, but we can play around 24 o'clock, didn't you get some candy? In this way, if anyone wins a game, they

The application of the WordPress 10129-Play on Words to connect to the Euler's Road

This is very similar to that of the WordPress 10054, but the words in this question cannot be reversed. Therefore, it is a directed graph to determine the Euler's path. About Euler's Road (from Titanium ): Determine whether a directed graph has an

Sha 490 Rotating Sentences

Rotating Sentences In ''rotating Sentences, ''you are asked to rotate a series of input sentences 90 degrees clockwise. so instead of displaying the input sentences from left to right and top to bottom, your program will display them from top to

Sha 12100 Printer Queue priority Queue simulation question array simulation Queue

The question is very simple: Give a queue and file location, and then check one by one. If the first is the highest priority, print it; otherwise, put it behind the queue, how long does it take to print the file to be printed. Here I use arrays to

Hdu 1496 Equations (Dual Loop + hash search)

A quartile quadratic equation is used to give the values of a, B, c, d, and xi between [-100,100] but not equal to zero. How many solutions are there when the equation is equal to zero. Questions can be violent... but they are always not harmonious.

Poj 1564 Sum It Up | zoj 1711 | hdu 1548 (dfs + pruning or weight determination)

Sum It UpTime Limit: 2000/1000 ms (Java/Other) Memory Limit: 65536/32768 K (Java/Other) Total Submission (s): 4 Accepted Submission (s): 1 Font: times New Roman | Verdana | GeorgiaFont Size: Regular → Problem DescriptionGiven a specified total t and

Use the timer T0 to interrupt the control of 8-bit LED flashing

# Include # define uchar unsigned char # define uint unsigned int uint I; void main () {I = 0; EA = 1; // enable the total interrupt TMOD = 0x01; // use the timer T0's working method 1 ET0 = 1; // The timer T0 interrupt allows TH0 = (65536-50000)/25

SRM 577 Div II Level Two: EllysRoomAssignmentsDiv2

Note that you only need to connect the strings in the ratings parameter directly, without adding spaces behind each element. at the beginning, I thought that when each element is connected, it should be separated by spaces, and then duplicated

[Leetcode] Partition List

/** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */class Solution {public: ListNode *partition(ListNode *head, int x) { // Start typing

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