Given a year, return the century it is in. 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. code example
Example: For year = 1905, the output should be centuryFromYear(year) = 20;
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function centuryFromYear(year) {
return Math.floor(year/100) + ((year%100) ? 1 : 0)
}