#include<stdio.h>
#include<queue>
using namespace std;
#define N 202
struct point
{
int x,step;
};
int f[N],st,en,n,a[N];
int bfs()
{
memset(f,0,sizeof(f));
queue<point>q;
point cur,next;
int x,y;
cur.step=0;cur.x=st;
f[st]=1;
q.push(cur);
while(!q.empty())
{
cur=q.front();
q.pop();
if(cur.x==en)
return cur.step;
x=cur.x+a[cur.x];
y=cur.x-a[cur.x];
if(x&g......
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this指针指向的是当前对象的起始地址,这个大家都知道。this指针变量是编译器所维护的,对于程序员来说属于const,是一个定值。一般对象创建调用构造函数时,通过编译器在构造函数里‘偷偷’安插的代码完成this指针变量的赋值。所以下面的代码输出结果是一致的。
#include <iostream>
using namespace std;
class Test
{
public:
Test()
{
cout<<this<<endl;
}
};
int main()
{
Test test;
cout<<&test<<endl;
system("pause");
}
现在谈一下this指针对于......
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TCustomMemoryStream is an abstract base class used as the common ancestor for memory streams.
Unit
Classes
Description
Use TCustomMemoryStream as a base class when defining a stream object that can transfer data that is stored in memory. Memory streams are useful for providing file-like access to data that is stored in a less accessible medium. Data can be moved to an internal memory buffer when the memory stream is created. After manipulating the data in a memory stream, the data can be ......
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