C++实现银行排队系统

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int cnt=0; //当日客流量
int sum=0; //当日客户排队总时间
typedef struct pnode{
  int number;
  int cometime;
  int leavetime;
  struct pnode *next;
}*person;
typedef struct node{
  person front;
  person rear;
  int   length;
}linkqueue;
linkqueue q[5];
int number,time;
int flag=1;
void initqueue(linkqueue &q){
  q.front=q.rear=(person)malloc(sizeof(pnode));
  if(!q.front||!q.rear)
    exit(0);
  q.front->next=NULL;
  q.length=0;
}
void enterqueue(linkqueue &q,int number,int time){
  person p;
  p=(person)malloc(sizeof(person));
  if(!p) exit(0);
  q.length++;
  p->number=number;
  p->cometime=time;
 // sum+=p->finishtime; //统计每个人的排队时长
  p->next=NULL;
  q.rear->next=p;
  q.rear=p;
}
void popqueue(linkqueue &q){
  person p;
  if(q.front==q.rear){
    return ;
  }
  p=q.front->next;
  q.front->next=p->next;
  q.length--;
  if(q.rear==p){
    q.front=q.rear;
  }
}
int getmin(linkqueue q[]){
   int temp=q[1].length;
   int j=1;
  for(int i=2;i<=4;i++){
    if(q[i].length<temp){
      temp=q[i].length;
      j=i;
    }
  }
  return j;
}
int getmax(linkqueue q[]){
  int temp=q[1].length;
   int j=1;
  for(int i=2;i<=4;i++){
    if(q[i].length>temp){
      temp=q[i].length;
      j=i;
    }
  }
  return j;
}

void Customer_Come(){
  printf("客户选队并排队\n\n");
    printf("输入客户编号:");
    scanf("%d",&number);
    printf("输入当前时间:");
    scanf("%d",&time);
    printf("\n");

   /*
    if(one.length<=two.length&&one.length<=three.length&&one.length<=four.length){
      enterqueue(one,number,time);
    }
    else if(two.length<=one.length&&two.length<=three.length&&two.length<=four.length){
      enterqueue(two,number,time);
    }
    else if(three.length<=one.length&&three.length<=two.length&&three.length<=four.length){
      enterqueue(three,number,time);
    }
    else{
      enterqueue(four,number,time);
    }*/
      printf("%d号顾客来到%d号窗口\n",number,getmin(q));
      enterqueue(q[getmin(q)],number,time);
}
void Customer_Leave(){
    printf("客户离队:\n\n");
    printf("输入要离队的客户编号: ");
    scanf("%d",&number);
    printf("输入当前时间:  ");
    scanf("%d",&time);
    //从四个队的队首分别去找，因为离队的只能是队首。
  /*  if(one.front->next->number==number){
      printf("%d号客户办理完成业务从1号窗口离开\n",number);
      popqueue(one);
      break;
    }
     if(two.front->next->number==number){
      printf("%d号客户办理完成业务从2号窗口离开\n",number);
      popqueue(two);
      break;
    }
     if(three.front->next->number==number){
      printf("%d号客户办理完成业务从3号窗口离开\n",number);
      popqueue(three);
      break;
    }
     if (four.front->next->number==number){
      printf("%d号客户办理完成业务从4号窗口离开\n",number);
      popqueue(four);
      break;
    } */
    for(int i=1;i<=4;i++){
      if(q[i].front->next->number==number){
        sum+=time-q[i].front->next->cometime;
        printf("%d号客户办理完成业务从%d号窗口离开\n",number,i);
        popqueue(q[i]);
        flag=0;
      }
    }
    if(flag)
      printf("编号错误请重新输入\n");
}
void Adjust_Queue(linkqueue q[]){
  int m=getmin(q);
  int n=getmax(q);
  person x,y;
  x=(person)malloc(sizeof(pnode));
  y=(person)malloc(sizeof(pnode));
  x=q[n].rear;
  enterqueue(q[m],x->number,x->cometime);
  y=q[n].front;
  while(y->next!=q[n].rear)
    y->next=y->next->next;
  q[n].rear=y;
  free(y->next);
  q[n].length--;
  q[m].length++;
}
void Close_Door(){
  printf("下班时间到，工作结束。\n");
  printf("今天共接待了%d位客户\n", cnt);
  printf("每位客户平均逗留时间为%.2f\n", (float)sum/cnt);
}
void welcome(){
  printf("    **************************   *************************\n");
  printf("    *   模拟银行排队系统  *   *  请输入号码选择功能 *\n");
  printf("    **************************   *************************\n");
  printf("     当前一号队列人数：%3d                 \n",q[1].length);
  printf("                     1  客户选队并排队  \n");
  printf("     当前二号队列人数：%3d                 \n",q[2].length);
  printf("                     2   客户离队    \n");
  printf("     当前三号队列人数：%3d                 \n",q[3].length);
  printf("                     3   退出系统    \n");
  printf("     当前四号队列人数：%3d                 \n",q[4].length);
  printf("    **************************   *************************\n");
}
int main(){
  //initqueue(one);
  //initqueue(two);
  //initqueue(three);
  //initqueue(four);
  for(int i=1;i<=4;i++){
    initqueue(q[i]);
  }
 while(1){
    welcome();
    int x;
  scanf("%d",&x);
  switch(x){
    case 1:
      cnt++;
      Customer_Come();
      break;
    case 2:
      Customer_Leave();
      while(q[getmax(q)].length-q[getmin(q)].length>=2)
        Adjust_Queue(q);
      break;
    case 3:
      Close_Door();
      exit(0);
      break;
   }
  }
  return 0;
}