**Problem Analysis:**

The problem is to check whether the entered year is leap year or not ( a year is leap if it is divisible by 4 and divisible by 100 or 400.

**Algorithms :**

1.start

2.Define :year:

3.Enter: year by user.

4.If ( year%4==0) && (year%100!=0)//(year%400=0):

print the output as leap year else if it is not leap year.

5.output : leap year, not leap year.

6.End.

**Codes:**

**outputs:**

Compiling , Debugging and Testing

Enter any year : 2020

leap year.