Where in my code problem exists?

Question

year = int(input())
#your code goes here
if year%4==0:
if year%100==0:
if year%400==0:
print("Leap year")
else:
print("Not a leap year")
else:
print("Not a leap year")
else:
print("Not a leap year")

Answer 1

_Imraj Not every year that gets divided by 4 needs to get divided by 100 and 400 as well for it to be a leap year ,

according to your program the only leap years would be 400,800,1200,1600,2000 which obviously is wrong .

Leap year are those that if divided by 100 , gets divided by 400 , also those are counted as leap year that gets divided by 4 (but not every year that gets divided by 4 is counted as leap year)