Q.

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

A)

int centuryFromYear(int year) {
  return (year - 1) / 100 + 1;
}