Help! How to assign value to an array

[LeaguePlayer]

Hi everyone, Im new to the community and was just wondering if I could get some help :)
I have an assignment where i have to create a program for a shipping company and I was wondering if someone could help me with the coding to assign the sum of a value to my array.
In line 75 after it says Freight Id is: I want to be able to assign the result of case 1 to any number in int freightId and then display it after.

#include <iostream>
#include <iomanip>
#include <ctime> 
#include <cstdlib>
using namespace std;

double shipcharge(double kg,int miles)
{
       
	double sc;
	int p1=(miles/500);
	if (miles%500>0)p1++;
	if(kg<=2)sc=1.1*p1;
	else if(kg<6)sc=2.2*p1;
	else if(kg<10)sc=3.7*p1;
	else if(kg<=20)sc=4.8*p1;
	return sc;
}

int main()
{
   int choice;       // Menu choice

   int freightId [] = { 1721, 1722, 1723, 1724, 1725, 1726, 1727, 1728, 1729, 1730, 1731, 1732, 1733, 1734, 1735, 1736, 1737, 1738, 1739, 1740, 1741, 1742, 1743, 1744, 1746, 1747, 1748, 1749, 1750, 1751, 1752, 1753,1754, 1755, 1756, 1757, 1758, 1759, 1760, 1761, 1762, 1763, 1764, 1765, 1766, 1767, 1768, 1769, 1770, 1771, 1772, 1773, 1774, 1775, 1776, 1777, 1778, 1779, 1780, 1781, 1782, 1783, 1784, 1785, 1786, 1787, 1788, 1789, 1790, 1791, 1792, 1793, 1794, 1795, 1796, 1797, 1798, 1799, 1800, 1801, 1802, 1803, 1804, 1805, 1806, 1807, 1808, 1809, 1810, 1811, 1812, 1813, 1814, 1815, 1816, 1817, 1818, 1819, 1820 };
   

   int d=0,cnt=0 , miles;
	double kg  ;
	double w;


  cout << "\t\tWelcome to FastFreight Company. You can select option from 1-5.\n\n";
   cout << "1. Add Freight Order\n";
   cout << "2. Update Status\n";
   cout << "3. Display Freight Voucher\n";
   cout << "4. Display Freight Order\n";
   cout << "5. Exit the System\n\n";
   cin >> choice;
   
   // Set the numeric ouput formatting.
   cout << fixed << showpoint << setprecision(2);
   
   // Respond to the user's menu selection.
   switch (choice)
   {
      case 1:
         cout << "Weight of Package: ";
         cin >> kg;
         w = kg;
         if (w <=0 )
		{
			cout<<"Please enter weight between 0-20.\n";
            cin>> kg;
		}
		
	else if ( w > 20)
		{
			cout<<"Please enter weight between 0-20.\n";
			cin>> kg;
		}
         cout << "Distance to be sent:";
         cin >> miles;
         d = miles;
         if (d<10)
		{
			cout<<"Please enter distance between 10-3000.\n";
		    cin>> kg;
		}
	else if(d>3000)
		{
			cout<<"Please enter distance between 10-3000.\n";
			cin>> kg;
		}
         cout<<"Cost for "<<w<<" kg for "<<d<<" miles is $"<<fixed<<shipcharge(w,d)<<endl;
         cout<< "Frieght ID is: "<< <<endl;
         
         cnt++;
         break;

[Ancient Dragon]

why do you need that array? they are all consecutive numbers, so you should be able to just calculate the value of freight id based on something else. I have no idea how you can derive freight id from the rest of the data objects in that program. Are you missing something from the assignment?

[cangan]

Sorry about the following syntax but you can solve it by this way :

int freightId [] = { 1721, 1722, 1723, 1724, 1725, ...} actually means

freightId[0]= 1721
freightId[1]= 1722
freightId[2]= 1723
....

Therefore assign your function results into another array . For ex:
fnc_results[0] = 500
fnc_results[1] = 550
fnc_results[2] = 560
....

Then make them come together like this ;

for(int i= 0 ; i< 10 ;i++ )
cout << "Frieght ID is: " freightId "costs :" + fnc_results

Good luck.

[LeaguePlayer]

*Ignore this Post, Look Below*

[LeaguePlayer]

Well what i need is I need the result of Case 1 to be stored under one of the numbers in int FreightId. I would like it so that each time the program is used it will store the result under different values in FreightId. This is so that in Case 2 i can look up 1722 for example then my program will display the stored value.

#include <iostream>
#include <iomanip>
#include <ctime> 
#include <cstdlib>
using namespace std;

double shipcharge(double kg,int miles)
{
       
	double sc;
	int p1=(miles/500);
	if (miles%500>0)p1++;
	if(kg<=2)sc=1.1*p1;
	else if(kg<6)sc=2.2*p1;
	else if(kg<10)sc=3.7*p1;
	else if(kg<=20)sc=4.8*p1;
	return sc;
}

int main()
{
   int choice;       // Menu choice
   int freightId [] = { 1721, 1722, 1723, 1724, 1725, 1726, 1727, 1728, 1729, 1730, 1731, 1732, 1733, 1734, 1735, 1736, 1737, 1738, 1739, 1740, 1741, 1742, 1743, 1744, 1746, 1747, 1748, 1749, 1750, 1751, 1752, 1753,1754, 1755, 1756, 1757, 1758, 1759, 1760, 1761, 1762, 1763, 1764, 1765, 1766, 1767, 1768, 1769, 1770, 1771, 1772, 1773, 1774, 1775, 1776, 1777, 1778, 1779, 1780, 1781, 1782, 1783, 1784, 1785, 1786, 1787, 1788, 1789, 1790, 1791, 1792, 1793, 1794, 1795, 1796, 1797, 1798, 1799, 1800, 1801, 1802, 1803, 1804, 1805, 1806, 1807, 1808, 1809, 1810, 1811, 1812, 1813, 1814, 1815, 1816, 1817, 1818, 1819, 1820 };
    int d=0,cnt=0 , miles;
	double kg  ;
	double w;


  cout << "\t\tWelcome to FastFreight Company. You can select option from 1-5.\n\n";
   cout << "1. Add Freight Order\n";
   cout << "2. Update Status\n";
   cout << "3. Display Freight Voucher\n";
   cout << "4. Display Freight Order\n";
   cout << "5. Exit the System\n\n";
   cin >> choice;
   
   // Set the numeric ouput formatting.
   cout << fixed << showpoint << setprecision(2);
   
   // Respond to the user's menu selection.
   switch (choice)
   {
      case 1:
         cout << "Weight of Package: ";
         cin >> kg;
         w = kg;
         if (w <=0 )
		{
			cout<<"Please enter weight between 0-20.\n";
            cin>> kg;
		}
		
	else if ( w > 20)
		{
			cout<<"Please enter weight between 0-20.\n";
			cin>> kg;
		}
         cout << "Distance to be sent:";
         cin >> miles;
         d = miles;
         if (d<10)
		{
			cout<<"Please enter distance between 10-3000.\n";
		    cin>> kg;
		}
	else if(d>3000)
		{
			cout<<"Please enter distance between 10-3000.\n";
			cin>> kg;
		}
 
         cout<<"Cost for "<<w<<" kg for "<<d<<" miles is $"<<fixed<<shipcharge(w,d)<<endl;
         cout<< "Frieght ID is: "<< <<endl;
         
         cnt++;
         break;
         
      case 2:
          cout << "Please enter Freight ID: ";
          cin >> freightId [];
           cout << "To update the Package. Enter Weight of Package: ";
         cin >> kg;
         w = kg;
         if (w <=0 )
		{
			cout<<"Please enter weight between 0-20.\n";
            cin>> kg;
		}
		
	else if ( w > 20)
		{
			cout<<"Please enter weight between 0-20.\n";
			cin>> kg;
		}
         cout << "Distance to be sent:";
         cin >> miles;
         d = miles;
         if (d<10)
		{
			cout<<"Please enter distance between 10-3000.\n";
		    cin>> kg;
		}
	else if(d>3000)
		{
			cout<<"Please enter distance between 10-3000.\n";
			cin>> kg;
		}
         cout<<"Updated cost for freightId "<<freightId []<<" is "<<w<<" kg for "<<d<<" miles is $"<<fixed<<shipcharge(w,d)<<endl;
         cnt++;
         break;
         
      case 3:
         cout << "Enter Voucher Number ";
         
        break;
        
      case 4:
          cout << "Enter Frieght ID:.\n";
          cin >>freightId [];
         break;
         
      case 5:
           cout << "The programm will now close.\n";
           exit(1);
           break; 
         
      default:
         cout << "The valid choices are 1 through 5. Run the\n";
         cout << "program again and select one of those.\n";
   }

   system ("pause");
   return 0;
}

[cangan]

Oh no it's not fair... Anyway, try this :

cout<<"Cost for "<<w<<" kg for "<<d<<" miles is $"<<fixed<<shipcharge(w,d)<<endl;
cout<< "Frieght ID is: "<< <<endl;

If freightId = 1721 assign i= 1721 then create a new array by using i,
freightId_cost = 50 $

cout<<"Updated cost for freightId "<<freightId []<<" is "<<w<<" kg for "<<d<<" miles is $"<<fixed<<shipcharge(w,d)<<endl;

If user inputs freightId [] = 1721 then freightId_cost will become freightId_cost [1721] which equals 50$