addarc.cpp

次界面好用但是也可能有许多不足还希望有贤人志士指点迷津！

#include"traffic.h"

step Addarc(ALGraph &G)
 {
   CityName from,to;
   int hour,minute,i = -1,j = -1,k,error = 0;
   Dtime leave;
   ArcNode *p;
   openfile("head");
   while( i == -1)
    {                       /*input   the  starte station*/
      printf("please input the addarc leave station.\n");
      scanf("%s",from);
      i = LocateVex(G,from);
      if(i == -1)
      {
        printf("There is no %s station\n",from);
	    error ++;
	    if(error == MAXERROR)   /*too many  error times*/
	    {                 
	      openfile("error");
           return NEXTSTEP;
	    }
        printf("please reinput:");
      }
    }
    
    error = 0;
   while( j == -1)
    {                    /*input  the terminus station*/
      printf("please input the addarc terminus station.\n");
      scanf("%s",to);
      j = LocateVex(G,to);
      if(j == -1)
      {
	    printf("There is no %s station\n",to);
	    error ++;
	    if(error == MAXERROR)
	    {
	      openfile("error");
           return NEXTSTEP;
	    }
	     printf("please reinput:");
      }
    }
    
    for(p = G.vertices[i].firstarc; p && p -> adjvex !=j;p = p -> nextarc);  /*search  the  arc  from i  to  j*/
    if(!p)                                                                   /*if not  exist  creat  the  arc*/
      {   
        p = (ArcNode *) malloc(sizeof(ArcNode));
        p -> adjvex = j;
        p -> nextarc = G.vertices[i].firstarc;
        G.vertices[i].firstarc = p;
	    p -> Tool[0] = NULL;
	    p -> Tool[1] = NULL;
      }
      
      i = -1;
      error = 0;
   while(i == -1)
   {
    printf("Which vehicle do you want to add?\n    1 train \n    2 fly\n");
    scanf("%d",&i);
    getchar();
    if(i != 1&&i != 2)  /*input  error!*/ 
    {
      error ++;
     if(error == MAXERROR)
	    {
	      openfile("error");
           return NEXTSTEP;
	    }
      printf("input error!please reinput!\n");
      i = -1;
    }

    else 
     {
       if(!p -> Tool[i-1])
        {                                            /*the  first  arc  , add   the arc infomation*/
         printf("This is the first line\n");
	     p -> Tool[i-1] = (Tooltype *)malloc(sizeof(Tooltype));
	 printf("How much money drive to %s by this tool\n",to);
	     scanf("%d",&p-> Tool[i-1] ->money);
	     printf("How long drive for %s to %s?(hour:minute)\n",from,to);
	     scanf("%d:%d",&p -> Tool[i-1] -> drivetime .hour,& p -> Tool[i-1] -> drivetime .minute);
	     p -> Tool[i-1] -> line = 0;
        }
         printf("please input the leave time.(hour:minute)\n");
         scanf("%d:%d",&leave.hour,&leave.minute);
         if(p -> Tool[i-1] ->line == MAX_LINE)
          {               /*the   line  is  Full*/
            openfile("head");
	        printf("The line  if  FULL!!\nCan not add other arc!\n");
	      }
	  else
	   {
	   for(k = 0;(k < p -> Tool[i-1] -> line)&& GLtime(leave,p->Tool[i-1]->starttime[k]);k ++);
	   if(leave.hour == p->Tool[i-1]->starttime[k].hour &&
	      leave.minute == p -> Tool[i-1]->starttime[k].minute)
	    {
	      openfile("head");
	      printf("This line is exist!!\n");
	      return NEXTSTEP;
	    }
	 for(j = p -> Tool[i-1] -> line;j > k;j --)
	 {
	  p->Tool[i-1]->starttime[j].hour = p->Tool[i-1]->starttime[j-1].hour;
	  p->Tool[i-1]->starttime[j].minute = p->Tool[i-1]->starttime[j-1].minute;
         }
          p->Tool[i-1]->starttime[k].hour = leave.hour;
	  p->Tool[i-1]->starttime[k].minute = leave.minute;
	  p -> Tool[i-1] -> line ++;
	   openfile("head");
       printf("add success!\n");
      }
     }
  }
   return NEXTSTEP;
 }