Century From Year

Introduction

The first century spans from the year 1 up to and including the year 100, the second century - from the year 101 up to and including the year 200, etc.

Task

Given a year, return the century it is in.

Examples

1705 --> 18
1900 --> 19
1601 --> 17
2000 --> 20

 

 

Solution:

1. Divide 'year' by 100.
2. Returns the decimal point rounded up.

 

import math

def century(year):
    return math.ceil(year / 100)

 

 

If it's too easy, there is a way to convert it to a string and solve it.

1. Convert the value divided by 100 into a string.
2. Convert the half-separated string to a number, and add 1 if the number on the right exceeds 0.

def century(year) -> int:
    year = str(year/100).split('.')
    return int(year[0]) + bool(int(year[1]))