C++ help please

A parking garage charges a $2.00 minimum fee to park for up to three hours. The garage charges an additional $0.50 per hour for each hour or part thereof in excess of three hours. The maximum charge for any given 24-hour period is $10.00. People who park their cars for longer than 24 hours will pay $8.00 per day.
first attempt:
#include
#include
#include
int(HoursParked, string enterTime, string exitTime)
float parkingFee (Int hours);
string enterTime, exitTime;
cout <<"Please enter the date and time the car is entering "<< endl
<< "the parking garage in the following format: DD/MM/YY hh:mm"<< endl;
getline (cin, enterTime);
cout<< "Please enter the date and time the car is exiting "<< endl
<< "the parking garage in the following format: DD/MM/YY hh:mm"<< endl;
getline(cin, exitTime);
cout(feedue)<cout <<(HoursParked (enterTime, exitTime))enter
return 0;
int HoursParked (string)
int TotalDays=stringToInt (exitTime.subr(3,2))stringToInt(enterTime)
int TotalDays=stringToInt (exitTime.subr(9,2))stringToInt(enterTime)
int TotalDays=stringToInt (exitTime.subr(12,2))stringToInt(enterTime)
Hours=(TotalDays>0)? (TotalHours +24*TotalDays);
Hours=(TotalMins>0)? Total+1; TotalHours
if (Hours<=3)
else
{
second attempt: ( this on just tells you the amount for 3 or less hours, i dont know how to modiify it after that) #include
#include
#include
#include
#include
#include
#include
using namespace std;

stringstream ss;
string enter_date;
string enter_time;
string exit_date;
string exit_time;
int calculatecharge;
int num;
int i;
int year;
int month;
int ddmmyyChar;
int dayStr;
string line;
int x;
int hr;

void atk()
{
getline (cin,line);
stringstream ss1(line);
ss >> enter_date >> enter_time;
stringstream ss2(enter_date);
string year, month, day;
getline (ss2, year, '/');
}

int main()
{
cout << "Please enter the date and time the car is entering "<< endl
<< "the parking garage in the following format: YY/MM/DD hh:mm"<< endl;
atk();
cout << "Please enter the date and time the car is exiting "<< endl
<< "the parking garage in the following format: YY/MM/DD hh:mm"<< endl;
atk();
if (hr - hr < 3)
cout<<"Parking fee due: $2.00" << endl;
else (hr-hr >24)

You're going to find it difficult to do this without using the date/time library functions. This is because the car could be parked for a number of days which may straddle year or month ends and may include leap-days. All this makes the number of days parked awkward to calculate.

I'd therefore suggest you do it on the following lines.

Notice that it's unclear what happens if the car is parked for more than 24 hours. I've assumed the fee is $8 for each day or part thereof. Otherwise, you will have the anomaly that parking for exactly 24 hours costs $10 but for one minute more costs only $8!

#include

using namespace std;

int main()

{

string enterTime, exitTime;

struct tm entry;

struct tm exit;

time_t timeEntered;

time_t timeExited;

int minutesParked, hoursParked, daysParked;

double diff;

float parkingFee;

while(true)

{

cout << "Please enter the date and time (DD/MM/YY hh:mm) the car is entering"<< endl;

getline(cin, enterTime);

if (enterTime.length() != 14)

{

cout << "Must be exactly 14 characters, try again" << endl;

continue;

}

entry.tm_mday= atoi(enterTime.substr(0, 2).c_str());

entry.tm_mon = atoi(enterTime.substr(3, 2).c_str()) - 1;

entry.tm_year = atoi(enterTime.substr(6, 4).c_str()) + 100; // since 1900

entry.tm_hour = atoi(enterTime.substr(9, 2).c_str());

entry.tm_min = atoi(enterTime.substr(12, 2).c_str());

entry.tm_sec = 0;

timeEntered = mktime(&entry);

if (timeEntered != -1) break;

cout << "An error occurred when converting the entry date/time, please try again" << endl;

}

cout << endl;

while(true)

{

cout << "Please enter the date and time (DD/MM/YY hh:mm) the car is exiting "<< endl;

getline(cin, exitTime);

if (exitTime.length() != 14)

{

cout << "Must be exactly 14 characters, try again" << endl;

continue;

}

exit.tm_mday= atoi(exitTime.substr(0, 2).c_str());

exit.tm_mon = atoi(exitTime.substr(3, 2).c_str()) - 1;

exit.tm_year = atoi(exitTime.substr(6, 4).c_str()) + 100; // since 1900

exit.tm_hour = atoi(exitTime.substr(9, 2).c_str());

exit.tm_min = atoi(exitTime.substr(12, 2).c_str());

exit.tm_sec = 0;

timeExited = mktime(&exit);

if (timeExited != -1) break;

cout << "An error occurred when converting the entry date/time, please try again" << endl;

}

cout << endl;

diff = difftime(timeExited, timeEntered);

minutesParked = (int)(diff/60);

hoursParked = minutesParked/60;

minutesParked %= 60;

daysParked = hoursParked/24;

hoursParked %= 24;

cout << "The car has been parked for " << endl;

cout << daysParked << " day(s) " << hoursParked << " hour(s) " << minutesParked << " minute(s)" << endl;

cout << endl;

if (daysParked == 1 && hoursParked == 0 && minutesParked == 0)

parkingFee = 10;

else if (daysParked > 0)

{

parkingFee = 8 * daysParked;

if (hoursParked > 0 || minutesParked > 0) parkingFee += 8;

}

else if (hoursParked < 3 || (hoursParked == 3 && minutesParked == 0))

parkingFee = 2;

else

{

parkingFee = 2 + (hoursParked - 3) * 0.5;

if (minutesParked > 0) parkingFee += 0.5;

if (parkingFee > 10) parkingFee = 10;

}

cout.precision(2);

cout << "The parking fee charged by the garage for this period is $" << fixed << parkingFee << endl;

return 0;

}

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Vulpes14y ago
You're going to find it difficult to do this without using the date/time library functions. This is because the car could be parked for a number of days which may straddle year or month ends and may include leap-days. All this makes the number of days parked awkward to calculate.

I'd therefore suggest you do it on the following lines.

Notice that it's unclear what happens if the car is parked for more than 24 hours. I've assumed the fee is $8 for each day or part thereof. Otherwise, you will have the anomaly that parking for exactly 24 hours costs $10 but for one minute more costs only $8!

#include
#include
#include
#include

using namespace std;

int main()
{
string enterTime, exitTime;
struct tm entry;
struct tm exit;
time_t timeEntered;
time_t timeExited;
int minutesParked, hoursParked, daysParked;
double diff;
float parkingFee;

while(true)
{
cout << "Please enter the date and time (DD/MM/YY hh:mm) the car is entering"<< endl;
getline(cin, enterTime);

if (enterTime.length() != 14)
{
cout << "Must be exactly 14 characters, try again" << endl;
continue;
}

entry.tm_mday= atoi(enterTime.substr(0, 2).c_str());
entry.tm_mon = atoi(enterTime.substr(3, 2).c_str()) - 1;
entry.tm_year = atoi(enterTime.substr(6, 4).c_str()) + 100; // since 1900
entry.tm_hour = atoi(enterTime.substr(9, 2).c_str());
entry.tm_min = atoi(enterTime.substr(12, 2).c_str());
entry.tm_sec = 0;
timeEntered = mktime(&entry);
if (timeEntered != -1) break;
cout << "An error occurred when converting the entry date/time, please try again" << endl;
}

cout << endl;

while(true)
{
cout << "Please enter the date and time (DD/MM/YY hh:mm) the car is exiting "<< endl;
getline(cin, exitTime);

if (exitTime.length() != 14)
{
cout << "Must be exactly 14 characters, try again" << endl;
continue;
}

exit.tm_mday= atoi(exitTime.substr(0, 2).c_str());
exit.tm_mon = atoi(exitTime.substr(3, 2).c_str()) - 1;
exit.tm_year = atoi(exitTime.substr(6, 4).c_str()) + 100; // since 1900
exit.tm_hour = atoi(exitTime.substr(9, 2).c_str());
exit.tm_min = atoi(exitTime.substr(12, 2).c_str());
exit.tm_sec = 0;
timeExited = mktime(&exit);
if (timeExited != -1) break;
cout << "An error occurred when converting the entry date/time, please try again" << endl;
}

cout << endl;

diff = difftime(timeExited, timeEntered);
minutesParked = (int)(diff/60);
hoursParked = minutesParked/60;
minutesParked %= 60;
daysParked = hoursParked/24;
hoursParked %= 24;
cout << "The car has been parked for " << endl;
cout << daysParked << " day(s) " << hoursParked << " hour(s) " << minutesParked << " minute(s)" << endl;
cout << endl;

if (daysParked == 1 && hoursParked == 0 && minutesParked == 0)
parkingFee = 10;
else if (daysParked > 0)
{
parkingFee = 8 * daysParked;
if (hoursParked > 0 || minutesParked > 0) parkingFee += 8;
}
else if (hoursParked < 3 || (hoursParked == 3 && minutesParked == 0))
parkingFee = 2;
else
{
parkingFee = 2 + (hoursParked - 3) * 0.5;
if (minutesParked > 0) parkingFee += 0.5;
if (parkingFee > 10) parkingFee = 10;
}
cout.precision(2);
cout << "The parking fee charged by the garage for this period is $" << fixed << parkingFee << endl;
return 0;
}