Learn

Awesome! In this mini-lesson, we’ve added more operators to our toolbox:

`&&`

: the`and`

logical operator`||`

: the`or`

logical operator`!`

: the`not`

logical operator

### Instructions

**1.**

**Optional:** Let’s try a challenging problem that will put all your brain cells to the test.

Write a **leap_year.cpp** program that:

- Takes a year as input.
- Checks to see if the year is a four-digit number.
- Displays whether or not the year falls on a leap year.

There are 3 criteria that must be taken into account to identify a leap year:

- If the year can be evenly divided by 4 then it is a leap year, however…
- If that year can be evenly divided by 100, and it is not evenly divided by 400, then it is NOT a leap year.
- If that year is evenly divisible by 400, then it is a leap year.

Take some time to research and brainstorm before starting to write the code!

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