void add_presents()
{
    int i=0;
    char PresentArray_name[10][30];//A 2D array to store names of presents,
which can only be 30 characters long
    int PresentArray_price[10];
    printf("This area is a little difficult to navigate as the answer for
the question is stored before the question is displayed! Simply type in the
toy hit the enter key, and then input it's price then hit the enter key!
Don't pay attention to the headings!n");
    for (i=0;i<10;i++)
    {
        printf("Enter present %d:n", i+1);
        scanf("%s", &PresentArray_name[i]);//Stores the presents in the
PresentArray_name
        printf("Enter price for present %d:n", i+1);
        scanf("%d", &PresentArray_price[i]);//Stores the presents in the
PresentArray_price
        if (PresentArray_price[i]<5||PresentArray_price[i]>15)
        {
            printf("Invalid! Enter a price between 5 and 15:n");
            scanf("%d", &PresentArray_price[i]);
        }

    }
    for (i=0;i<10;i++)
    {
        printf("Present %s costs %dn", PresentArray_name[i],
PresentArray_price[i]);//Prints the names and the costs of each present
    }
    srand(time(NULL));
    time_t t;
    srand((unsigned)(&t));
    for (i=0;i<total_number_of_presents_required;i++)//Loop counter form
another part of the code
    {
        printf("Kid: %d gets %s, which costs: %dn",i+1,
PresentArray_name[rand()%10], PresentArray_price[i]);
    }
}

#include <stdio.h>
#include <time.h>

struct Present
{
  char name[30];  // note this will only hold a name 29 long to ensure room for NUL terminator
  int price;
};

int main(void)
{
  srand(time(NULL));
  // now, you can simply create an array of this struct, and the name
  // and price will always be together
  struct Present presents[10];

  int i;
  for (i=0; i<10; i++)
  {
    // get user input. You should also check the return value of scanf which I'm omitting here for brevity
    // get the present name
    scanf("%s", presents[i].name);
    // get the price
    scanf("%d", &(presents[i].price));
  }

  // now when you randomly select a present, you'll get it's name and price
  i = rand()%10;
  printf("present name: %sn", presents[i].name);
  printf("present price: %dn", presents[i].price);

  return 0;
}