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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Long-year/Swift/long-year.swift Normal file
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func isLongYear(_ year: Int) -> Bool {
let year1 = year - 1
let p = (year + (year / 4) - (year / 100) + (year / 400)) % 7
let p1 = (year1 + (year1 / 4) - (year1 / 100) + (year1 / 400)) % 7
return p == 4 || p1 == 3
}
for range in [1900...1999, 2000...2099, 2100...2199] {
print("\(range): \(range.filter(isLongYear))")
}