恳请大家帮忙deque iterator not dereferencable错误
customer.h#ifndef _CUSTOMER_H_
#define _CUSTOMER_H_
#include <iostream>
#include <iomanip>
using namespace std;
class customer
{
private:
int arrive_time; //arrive time
int service_time; //service time
int state; //if state==0 customer is not serviced
public: //if state==1 customer is serviced
customer()
{
this->arrive_time=0;
this->service_time=0;
this->state=0;
}
void set_arr_time(int arrive_time)
{
this->arrive_time=arrive_time;
}
void set_ser_time(int service_time)
{
this->service_time=service_time;
}
void set_serviced()
{
this->state=1;
}
void set_droped()
{
this->state=0;
}
int get_arr_time()
{
return arrive_time;
}
int get_ser_time()
{
return service_time;
}
int get_state()
{
return state;
}
};
#endif _CUSTOMER_H_
station.h
#ifndef _STATION_H_
#define _STATION_H_
#include <iostream>
#include <iomanip>
using namespace std;
class station
{
private:
int service_time; //the service_time left
int service_state; //if service_state==0 station is avaible
public:
station()
{
this->service_time=0;
this->service_state=0;
}
void set_time(int service_time)
{
this->service_time=service_time;
this->service_state=1;
}
void set_avaible()
{
this->service_state=0;
}
void provide_service(int time)
{
if(service_time>time)
{
service_time-=time;
service_state=1;
}
else
service_state=0;
}
int get_state()
{
return service_state;
}
};
#endif _STATION_H_
main.cpp
//==============================================================================
#include <cstdlib>
#include <iostream>
#include <iomanip>
#include <fstream>
#include <cmath>
#include <queue>
#include <time.h>
#include "customer.h"
#include "station.h"
#define avg_ser 10.0 //the avg_service_time second
#define avg_csm 12.0 //the avg_customer_arrive_dis
#define num_csm 100 //the arrived customer number
#define num_ser 6 //the service station number
#define num_wait 20 //the waited customer num
using namespace std;
//==============================================================================
int main(void)
{
station *ser_que;
customer *csm_que;
ser_que=new station[num_ser];
csm_que=new customer[num_csm];
queue<int> que_wait;
//==============================================================================
int csm_dis,ser_dis;
double y;
srand((unsigned)time(NULL));
for(int i=0;i<num_csm;i++) //generating customer arrive_dis
{
csm_dis=0;
srand((unsigned)time(NULL));
double b=1,a=exp(-avg_csm);
do
{
y=(rand()%1000)/1000.0;
b*=y;
if(b>=a)
csm_dis++;
}while(b>=a);
csm_que[i].set_arr_time(csm_dis);
cout<<csm_que[i].get_arr_time()<<endl;
}
for(int i=0;i<num_csm;i++) //generating service_dis
{
ser_dis=0;
double b=1,a=exp(-avg_ser);
do
{
y=(rand()%1000)/1000.0;
b*=y;
if(b>=a)
ser_dis++;
}while(b>=a);
csm_que[i].set_ser_time(ser_dis);
}
//==============================================================================
cout<<que_wait.size()<<endl;
int usr=0;
while(usr<num_csm)
{
for(int ser=0;ser<num_ser;ser++)
{
ser_que[ser].provide_service(csm_que[usr].get_ser_time());
}
if(que_wait.size()<num_wait)
{
que_wait.push(usr);
int size=que_wait.size();
cout<<size<<endl;
for(int s=0;s<size;s++)
{
for(int ser=0;ser<num_ser;ser++)
{
if(ser_que[ser].get_state()==0)
{
int usr_que=que_wait.front();
ser_que[ser].set_time(csm_que[usr_que].get_ser_time());
csm_que[usr_que].set_serviced();
if(!que_wait.empty())
{
que_wait.pop();
}
// continue;
}
}
}
usr++;
}
else
{
csm_que[usr].set_droped();
usr++;
}
}
cout<<que_wait.size()<<endl;
//==============================================================================
for(int i=0;i<num_csm;i++)
{
cout<<csm_que[i].get_state();
}
system("PAUSE");
return 0;
}
//==============================================================================
--------------------编程问答-------------------- aiya ~~~
补充：.NET技术 , VC.NET
