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landaiqing
2023-05-12 00:34:15 +08:00
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计算机组成原理实验代码/FCFS_2.cpp Normal file
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#include<iostream>
using namespace std;
#define N 3
struct PCB
{
char name[8];
int arrive_time;
int run_time;
int finish_time;
int zhouzhuan_time;
float daiquan_time;
};
float sumzhouzhuantime,sumdaiquanzhouzhuantime;
struct PCB pcb[N],temp;
void input(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void sort(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><C4BD>̰<EFBFBD><CCB0><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4>
void output(); //<2F><><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><E3B7A8><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
int main()
{
input();
sort( );
output();
}
void input()
{
int i;
cout<<"--------------------------------------"<<endl;
cout<<" FCFS<46><53><EFBFBD><EFBFBD><EFBFBD>㷨 "<<endl;
cout<<"--------------------------------------"<<endl;
cout<<" <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ:"<<endl;
for ( i=0;i<N;i++)
{
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:\n" );
scanf("%s",pcb[i].name);
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뵽<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>:");
scanf("%d",&pcb[i].arrive_time);
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>:");
scanf("%d",&pcb[i].run_time);
}
cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:"<<endl;
for( i=0;i<N;i++)
{ printf("%s ",pcb[i].name);
printf("%d ",pcb[i].arrive_time);
printf("%d \n",pcb[i].run_time);
}
}
void sort()//<2F><><EFBFBD>յ<EFBFBD><D5B5><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>Խ<EFBFBD><D4BD>̽<EFBFBD><CCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
for(int i=0;i<N-1;i++)
{
for(int j=i+1;j<N;j++)
{
if(pcb[i].arrive_time>pcb[j].arrive_time)
{
temp=pcb[i];
pcb[i]=pcb[j];
pcb[j]=temp;
}
}
}
}
void output()
{
int i;
cout<<"FCFS<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨:"<<endl;
pcb[0].finish_time=pcb[0].arrive_time+pcb[0].run_time;
pcb[0].zhouzhuan_time=pcb[0].finish_time-pcb[0].arrive_time;
pcb[0].daiquan_time=(float)pcb[0].zhouzhuan_time/pcb[0].run_time;
for(i=1;i<N;i++)
{
if(pcb[i].arrive_time>pcb[i-1].finish_time)
{
pcb[i].finish_time=pcb[i].arrive_time+pcb[i].run_time;
pcb[i].zhouzhuan_time=pcb[i].run_time;
pcb[i].daiquan_time=(float)pcb[i].zhouzhuan_time/pcb[i].run_time;
}
else
{
pcb[i].finish_time=pcb[i-1].finish_time+pcb[i].run_time;
pcb[i].zhouzhuan_time=pcb[i].finish_time-pcb[i].arrive_time;
pcb[i].daiquan_time=(float)pcb[i].zhouzhuan_time/pcb[i].run_time;
}
}
for(i=0;i<N;i++)
{
sumzhouzhuantime+=pcb[i].zhouzhuan_time;
sumdaiquanzhouzhuantime+=pcb[i].daiquan_time;
}
printf("----------------------------------------------------------------\n");
printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> <20><>תʱ<D7AA><CAB1> <20><>Ȩ<EFBFBD><C8A8>תʱ<D7AA><CAB1> \n");
printf("----------------------------------------------------------------\n");
for(i=0;i<N;i++)
{
printf(" %s %d %d %d %d %.2f\n",pcb[i].name,pcb[i].arrive_time,pcb[i].run_time,pcb[i].finish_time,pcb[i].zhouzhuan_time,pcb[i].daiquan_time);
}
cout<<"ƽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>תʱ<EFBFBD><EFBFBD>:"<<sumzhouzhuantime/N<<endl;
cout<<"ƽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȩ<EFBFBD><EFBFBD>תʱ<EFBFBD><EFBFBD>:"<<sumdaiquanzhouzhuantime/N<<endl;
printf("----------------------------------------------------------------\n");
}