#include <stdio.h>
#include <string.h>  // for strtok
#include <stdlib.h>

struct ticket
{
       int number[10];
    
       int price[10];      
};


void inputNumber(struct ticket *data, int NUMBER1);
void displayPrice(struct ticket *data, int PRICE1);
void findPrice(struct ticket *data, int NUMBER1);

int main()
{

            
	struct ticket *data;
	int PRICE1;
    int NUMBER1;
      printf("Ticket receipt system\n");
      printf("Input the number of customers: \n ");
      scanf("%d", &NUMBER1);
      data=(struct ticket *)calloc(NUMBER1,sizeof(struct ticket));
      inputNumber(data, NUMBER1);
      displayPrice(data, PRICE1);
      findPrice(data, NUMBER1);     
      system("pause");

}

void inputNumber(struct ticket *data, int NUMBER1)
{
	int i;
    FILE *fout;     // write file
   	FILE *fin;
    fout =fopen("receipt.txt", "w");  
   for(i=0; i<NUMBER1; i++)
    {
    fscanf(fin,"%d %d", data[i].number, data[i].price);

  
            
    }
    fclose(fout);
}


void displayPrice(struct ticket *data, int PRICE1)
{
     int i;
     //display to screen
     printf("price of ticket:\n");
     
     for(i=0; i<PRICE1; i++)
     {
              printf(" %d ", data[i].price);
     }
}

void findPrice(struct ticket *data, int NUMBER1)
{
	int i;  
	int total;	
	if(NUMBER1<=10)
		total=NUMBER1*7;
	else if   ((10<=NUMBER1) && (NUMBER1<20))
		total=NUMBER1*6;
	else if ((20<=NUMBER1)&&(NUMBER1<50))
		total=NUMBER1*5;
	else if (50<=NUMBER1)
		total=NUMBER1*4;
	printf("¡Ì%s", &total);
}