Century From Year

[freedom5566]

https://www.codewars.com/kata/century-from-year/

題目

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

Task :
Given a year, return the century it is in.

Input , Output Examples ::

centuryFromYear(1705)  returns (18)
centuryFromYear(1900)  returns (19)
centuryFromYear(1601)  returns (17)
centuryFromYear(2000)  returns (20)

第一世紀是從1年到100年，包括100年，第二世紀-從101年到200年以此類推

你的任務是

給你一個西元年，回傳該年的世紀