Any one have answer?

Question

According to Gregorian calendar, it was Monday on the date 01/01/01.If any year Is input through the keyboard write a program to find
out what is the day on 1st January of this year.

Answer 1

What do you mean by this? Answer what? Please be precise with your question.
https://www.sololearn.com/discuss/1316935/?ref=app

Answer 2

This what I can give you:
In year 0 (should exist) it would be a saturday because:
On a not-divisible-by-4-year the day will shift 1 day
On a divisible-by-4-year the day will shift 2 days so:
Y 01 : monday
Y 02 : tuesday
Y 03 : wednesday
Y 04 : thursday
Y 05 : saturday
Y 06 : sunday
Y 07 : monday
Y 08 : tuesday

This will go on untill Y 56, and at 57 it will start again with the same as 01

Answer 3

I really don't know how to solve the question... I didn't get it correctly...