First Summer 2006

We then discuss this problem (whose number was 10, once, in a list of problems):

10.

A year with 366 days is called a leap year. A year is a leap year if it is divisible by 4 (for example, the year 1980), except it is not a leap year if it is divisible by 100 (for example, the year 1900); however, it is a leap year if it is divisible by 400 (for example, the year 2000). There were no exceptions before the introduction of the Gregorian calendar on October 15, 1582 (for example, the year 1500 was a leap year). Write a program (called Ten) that asks the user for a year and computes whether that year is a leap year or not.

Here's a sample run of such a program: frilled.cs.indiana.edu%java Ten Please enter the year then press Enter : 1500 Leap year: 1500 frilled.cs.indiana.edu%java Ten Please enter the year then press Enter : 1900 1900 not a leap year! frilled.cs.indiana.edu%java Ten Please enter the year then press Enter : 1996 Leap year: 1996 frilled.cs.indiana.edu%java Ten Please enter the year then press Enter : 1997 1997 not a leap year! frilled.cs.indiana.edu%java Ten Please enter the year then press Enter : 2000 Leap year: 2000 frilled.cs.indiana.edu%

We will develop a program in Python, of course.