Language:c++

choice b and c dont display the file rearranged why is that andhow can i fix it?

#include
#include
using namespace std;
#define size 10000

// Displays the current Inventory Data
void Display(int box_nums[], int nboxes[], double ppBox[], int n)// Prints Box number , number of boxes and price per box.
{
   cout << \"Box number Number of boxes in stockPrice per box\" << \"\n\";
   cout <<\"-------------------------------------------------------------\n\";
   for (int i = 0; i < n; i++)
   {
       cout << box_nums[i] <<\" \" << nboxes[i] << \" \" << ppBox[i] <<\"\n\";
   }
}

// sort's the inventory data according to the price per box fromlow to high
void sortByPrice(int box_nums[], int nboxes[], double priceBox[],int n)
{
   int i, j, min_idx, temp2;
   double temp;
   for (i = 0; i < n - 1; i++)
   {
       min_idx = i; // min_idx is used tostore data in ascending order
       for (j = i + 1; j < n; j++) //used selection sort to sort the data based on price per box
       {
           if (priceBox[j]< priceBox[min_idx])
              min_idx = j;
       }
       temp = priceBox[min_idx];
       priceBox[min_idx] = priceBox[i]; //temp is a variable to swap data
       priceBox[i] = temp;

       temp2 = nboxes[min_idx];
       nboxes[min_idx] = nboxes[i]; //temp2 is a variable to swap data
       nboxes[i] = temp2;

       temp2 = box_nums[min_idx];
       box_nums[min_idx] =box_nums[i];
       box_nums[i] = temp2;

   }
}

// sort's the inventory data according to Box number from low tohigh
void sortByBoxNumber(int box_nums[], int nboxes[], doublepriceBox[], int n)
{
   int i, j, min_idx, temp2;
   double temp;
   for (i = 0; i < n - 1; i++)
   {
       min_idx = i; // min_idx is used tostore data in ascending order
       for (j = i + 1; j < n;j++)
       {
           if (box_nums[j]< box_nums[min_idx]) // used selection sort to sort the databased on price per box
              min_idx = j;
       }

       temp2 = box_nums[min_idx];
       box_nums[min_idx] =box_nums[i];
       box_nums[i] = temp2;

       temp = priceBox[min_idx];
       priceBox[min_idx] =priceBox[i];
       priceBox[i] = temp;

       temp2 = nboxes[min_idx];
       nboxes[min_idx] = nboxes[i];
       nboxes[i] = temp2;
   }
}

// Searches for the price per box of the corresponding boxnumber entered by user.
double lookUpByBoxNumber(int boxNumber, int box_nums[], doublepriceBox[], int n)
{
   int low = 0, high = n - 1;
   int mid;
   while (low <= high) // used binary search to searchfor the corresponding box number and its price-per-box
   {
       mid = low + (high - low) / 2;

       if (box_nums[mid] >boxNumber)
       {
           high = mid -1;
       }
       else if (box_nums[mid] ==boxNumber)
       {
           returnpriceBox[mid];
       }
       else
       {
           low = mid +1;
       }

   }
   return -1;
}

//Reordered the data whose number of boxes are less than100
void reorderReport(int box_nums[], int nboxes[], int n)
{
   int* reorderBoxNums = new int[n];
   int* reorderBoxes = new int[n];
   int k = 0;
   for (int i = 0; i < n; i++)
   {
       if (nboxes[i] < 100)
       {
          reorderBoxNums[k] = box_nums[i];
           reorderBoxes[k]= nboxes[i];
           k++;
       }
   }
   int i, j, max_idx, temp2;
   for (i = 0; i < k - 1; i++) // sorts the data inreordered data according to number of boxes in inventory from lowto high
   {
       max_idx = i;
       for (j = i + 1; j < k;j++)
       {
           if(reorderBoxes[j] > reorderBoxes[max_idx])
              max_idx = j;
       }

       temp2 =reorderBoxes[max_idx];
       reorderBoxes[max_idx] =reorderBoxes[i];
       reorderBoxes[i] = temp2;

       temp2 =reorderBoxNums[max_idx];
       reorderBoxNums[max_idx] =reorderBoxNums[i];
       reorderBoxNums[i] = temp2;
   }
   cout << \"REORDERED REPORT IS: \n\";
   cout << \"The boxes in invetory whose stock areless than 100 are: \n\";
   cout << \"Box number Number of boxes in stock\"<< \"\n\";
   cout <<\"------------------------------------------\" << \"\n\";
   for (int i = 0; i < k; i++)
   {
       cout << reorderBoxNums[i]<< \" \" << reorderBoxes[i] << \"\n\";
   }
}
int main()
{

   std::fstream myfile(\"inventory.txt\");
   int box_number[size], numberOfBoxes[size];
   double pricePerBox[size], sp;
   int bn, nb, i = 0;
   while (myfile >> bn >> nb >> sp) //fetch data from file inventory.txt
   {
       box_number[i] = bn;
       numberOfBoxes[i] = nb;
       pricePerBox[i] = sp;
       i++;
   }

   int n = i, bnumber; // n stores number of recordsin file , bnumber is the box number which is to be searched forprice-per-box by user
   double val; // val is variable used for value storedfrom lookup by box-number
   char option;
   bool exit = true; // exit variable to exit the whileloop

   // Menu for the user
   cout << \"\nChoose a option in the Menua/b/c/d/e/f :\" << \"\n\";
   cout << \"a. Display the data\" <<\"\n\";
   cout << \"b. Sort data by price, low to high\"<< \"\n\";
   cout << \"c. Sort data by box number, low tohigh\" << \"\n\";
   cout << \"d. Look up the Price of the box giventhe box number\" << \"\n\";
   cout << \"e. Generate Reorder Report\" <<\"\n\";
   cout << \"f. Exit\" << \"\n\";

   while (exit)
   {
       cout << \"Enter your choicea/b/c/d/e/f : \";
       cin >> option;

       switch (option)
       {
       case 'a':
          Display(box_number, numberOfBoxes, pricePerBox, n);
           break;
       case 'b':
          sortByPrice(box_number, numberOfBoxes, pricePerBox, n);
           cout <<\"Data has been Successfully sorted by price\" << \"\n\";
           cout <<\"Please, choose option 'a' to display sorted data\" <<\"\n\";
           break;
       case 'c':
          sortByBoxNumber(box_number, numberOfBoxes, pricePerBox, n);
           cout <<\"Data has been Successfully sorted by Box Number\" <<\"\n\";
           cout <<\"Please, choose option 'a' to display sorted data\" <<\"\n\";
           break;
       case 'd':
          sortByBoxNumber(box_number, numberOfBoxes, pricePerBox, n);
           cout <<\"Enter the box number for which you want to search the price :\";
           cin >>bnumber;
           val =lookUpByBoxNumber(bnumber, box_number, pricePerBox, n);
           if (val <0)
           {
              cout << \"There is no price of the box forthe box number you are searching for\n\";
           }
           else
           {
              cout << \"The price-per-box of theBox-Number you searched is \" << val << \"\n\";
           }
           break;
       case 'e':
          reorderReport(box_number, numberOfBoxes, n);
           break;
       case 'f':
           exit =false;
           break;
       default:
           cout <<\"Invalid options , enter a valid option\" << \"\n\";
           break;

       }

   }
   return 0;
}