Challenge #1: Leap Year?
Write a program that lets the end-user enter a year using 4 digits (“yyyy” format).
The program should inform the user whether the year entered is a leap year or not.
Challenge #2: Valid and Invalid Dates
Write a program that lets the end-user enter a date using the “dd/mm/yyyy” format.
The program should inform the user whether the date entered is a valid date or not using the following criteria:
| “mm” | Month | Acceptable Date Range (“dd”) |
| 01 | January | 1 to 31 |
| 02 | February | 1 to 29 on a leap year
1 to 28 otherwise |
| 03 | March | 1 to 31 |
| 04 | April | 1 to 30 |
| 05 | May | 1 to 31 |
| 06 | June | 1 to 30 |
| 07 | July | 1 to 31 |
| 08 | August | 1 to 31 |
| 09 | September | 1 to 30 |
| 10 | October | 1 to 31 |
| 11 | November | 1 to 30 |
| 12 | December | 1 to 31 |
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