Learn how to a build a cloud-first strategyRegister Now

x
?
Solved

c++ calculating seconds in a year

Posted on 2011-03-08
9
Medium Priority
?
366 Views
Last Modified: 2012-05-11
how can i write a c++ program to determine  the number of seconds in any given year?

using namespace std;

int main(int argc, char *argv[])
{
    int year;
        cin >> year;
         cout << "leap year " << endl;
        }
        else
        {
        cout << " not leap year "  << endl;
    system("PAUSE");
    return EXIT_SUCCESS;
}
0
Comment
Question by:Gator77
8 Comments
 
LVL 16

Expert Comment

by:sjklein42
ID: 35075158
I would do it by using two DateTime objects, one set to the time at the beginning of the year in question and the other set to the beginning of the next year.  Convert both DateTimes to seconds and subtract the result to get the length of the year in seconds.

0
 
LVL 86

Accepted Solution

by:
jkr earned 2000 total points
ID: 35075204
Use 'mktime()' (http://www.cplusplus.com/reference/clibrary/ctime/mktime/) for that, it returns a 'time_t' value for the date you pass in. 'time_t' now is nothing else but the amount of seconds elapsed since midnight (00:00:00), January 1, 1970 for any given date. Calculate that for Jan 1, Midnight and Dec 31 29:59 of that give year and subtract the results, then you have the amount of seconds in that year. Sorry for not being more specific, but EE has quite a strict homework policy.
0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 
LVL 11

Expert Comment

by:Kusala Wijayasena
ID: 35080226
If your intention is to calculate leap year, I would recommend following logic rather than something based on number of seconds in a year

bool isLeapYear(int year)
{
	return (year % 4 == 0) && (year % 100 != 0 || year % 400 == 0);
}

Open in new window



-Kusala
0
 
LVL 35

Expert Comment

by:sarabande
ID: 35081589
obviously the number of seconds per year calculates by 366 * 24 * 3600 for leap years and 365 * 24 * 3600 else.

leap years we have for years dividable by 4 without remainder but not century years like 1900 beside the year is dividable by 400 without remainder like in 2000.

you can see the post of kusala for implementation of that rule.

Sara
0
 
LVL 16

Expert Comment

by:sjklein42
ID: 35081848
Don't forget the occasional Leap-Second:

http://en.wikipedia.org/wiki/Leap_second
0
 
LVL 10

Expert Comment

by:pjasnos
ID: 35090449
Leap seconds is definitely an overkill here - they can't be predicted algorithmically, so all you can do is include a big fat table of past values.
0
 
LVL 40

Expert Comment

by:evilrix
ID: 36518453
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
0

Featured Post

Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

C++ Properties One feature missing from standard C++ that you will find in many other Object Oriented Programming languages is something called a Property (http://www.experts-exchange.com/Programming/Languages/CPP/A_3912-Object-Properties-in-C.ht…
Article by: evilrix
Looking for a way to avoid searching through large data sets for data that doesn't exist? A Bloom Filter might be what you need. This data structure is a probabilistic filter that allows you to avoid unnecessary searches when you know the data defin…
The goal of the tutorial is to teach the user how to use functions in C++. The video will cover how to define functions, how to call functions and how to create functions prototypes. Microsoft Visual C++ 2010 Express will be used as a text editor an…
The viewer will learn how to user default arguments when defining functions. This method of defining functions will be contrasted with the non-default-argument of defining functions.

810 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question