C ++ round up

[nickx522]

I cant round up minutes and switch them to hours?...for example if a car was parked for 241 minutes(input has to be in minutes) and rate was $2/hour and first 120 minutes were free i would need to charge for 5h and i dont know how to round up right so i could charge for 5h. please helpp.

so far

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

int main()
{
    //local constants
    const char CAR   = 'C';
    const char TRUCK = 'T';

    //local variables
    char type;                             //Car or truck
    int num;                                   //Minutes parked
    float total;                                 //Total

    /**************************start main program*********************/

   //Input whether its car or truck
   cout << "\n\n";
   cout << setw(45) << "-------------------------------"        << endl;
   cout << setw(45) << "Cost of Parking on OnCenter lot"        << endl;
   cout << setw(45) << "-------------------------------"        << endl;
   cout << setw(45) << "Vehicle Type (T for Truck C for Car):   " << endl;
   cin  >> type;

   if (type == 'C')
      {
      cout << setw(45) << " Minutes Parked:   ";
      cin  >> num;
      }
      if ( num <= 120 )        
         cout << setw(45) << " No Fee ";

      else if ( num > 120 )

[Unimportant]

int hours(minutes/60);
if( (minutes%60) > 0 ) ++hours;

Divide minutes by 60 for the number of hours, the conversion to the "int" type will floor the value (drop any decimal amount)
The % (modulus) operator returns a remainder of division. If your number of minutes is not divisible by 60, increase the number of hours by 1.

[nickx522]

i really dont know where to put those things? im a beginner.

if ( num <= 120 )        
         cout << setw(45) << " No Fee ";
      else if ((num%60) > 0 ) ++hours;
      {
           int hours(num/60);
         cout << setprecision(2) << setiosflags(ios::fixed) << setiosflags(ios
              ::showpoint);    
         cout << setw(45) << "Total:   " << total;
         } 

??????????????????? this still doesnt work.
please helpp

thank youu

[csurfer]

@Unimportant : hours(minutes/60) would act like a ground function and give 4 hours for 241 minutes and not five.(you need to increase minutes by 60 or add 1 to the hours value in order to make it act like a ceiling function i,e (241+60)/60 = 5 and (241/60)+1 = 5).

@nickx522:You have almost got it you can work around like this:

//Only a psuedocode
if(min <= 120)
   // print it as free parking
else
{
    //Increase minutes by 60 so that when you divide it by 60 you get the effect of ceiling function and not of a ground function
    min+=60;
    int hours(min/60);
    //Now you have the hours for which you need to charge 
}

[nickx522]

i didnt even learn ceiling function yet?

can you just help me to code it? i only can use if and else.

ive been trying to get this to work for past 4h! and i cant figure it out.

[nickx522]

if (type == 'C')
      {
      cout << setw(45) << " Minutes Parked:   ";
      cin  >> num;
      }
      if ( num <= 120 )        
         cout << setw(45) << " Free Parking ";
       else
          {
          num+=60;
          num = num-120;
          total = (num/60)* 1.75;
          cout << "Total: " << total;
          }

this seem to work. is it correct?

[Unimportant]

@csurfer, read the rest of my post.
I did that on purpose, and then used the modulus operator to add 1 to hours if minutes does not divide evenly into 60.
241/60 AS INT -> 4
241%60 != 0 -> 4 becomes 5

but if number of minutes was 240:
240/60 is still 4
240%60 == 0 -> 4 stays 4

if the number was 239
239/60 is 3 as int
239%60 != 0 -> 3 becomes 4

Also, please use code tags to preserve tabs

if (type == 'C') {
  cout <<"\nMinutes Parked: \n";
  cin >> num;
}
if ( num <= 120 ) {
  cout << "Free Parking\n";
} else {
  total = (num-120)/60; // don't know what the 1.75 was about
  if( num%60!=0 ) ++total;
  cout << "Total: " << total << "\n";
}

Edit: You can probably even drop the != 0, and use the line:

if(num%60)++total;

Due to the fact that 0 evaluates to false, and any other value evaluates to true, but this might be less clear readability wise.

[nickx522]

thank you soo much everyone!!

this works!!

   //Input whether its car or truck
   cout << "\n\n";
   cout << setw(50) << "---------------------"        << endl;
   cout << setw(50) << "OnCenter Parking Cost"        << endl;
   cout << setw(50) << "---------------------"        << endl;
   cout << "\n";
   cout << setw(58) << "Vehicle Type (T for Truck C for Car):  ";
   cin  >> type;
   cout << "\n";
     if (type == 'c') 
     {
        cout << setw(57) << " Minutes Parked                      : ";
        cin >> num;
     }
     //Clear the screen
    system("cls");

     if ( num <= 120 ) 
        cout << setw(50) <<  "Free Parking" << endl;
      else 
          total_hours = (num-120)/60; 
     if ( num%60!=0 ) ++total_hours;
          {
          total_min   = total_hours + 2;           
          total = total_hours * CAR_FEE;
          cout << setw(47) << " RECEIPT ";
          cout << setw(80) << "---------";
          cout << "\n\n";
          cout << setw(50) << "Total Hours Parked :  " << total_min;
          cout << "\n\n";
          cout << setw(50) << "Cost for Parking   : $" << total;
          cout << "\n\n";
          cout << setw(50) << "Vehicle Type       :  " << "Car";
          cout << "\n";
}

}   //End main program

but this code is only if the user enters c for car, now i dont know where i need to insert if (type == 't') and write the code for the truck which is going to be similar. if someone could help me with that, it would be much appreciated.

[nickx522]

can anyone help??

[Unimportant]

Why not just do exactly what you just said?
Just put if(type=='t') and then the rest of the code for that case.

[nickx522]

yeah when i do that all the elses and couts get executed too :(