29 lines
796 B
Text
29 lines
796 B
Text
// version 1.1.4-3
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import java.io.File
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val r = Regex("[ ]+")
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fun main(args: Array<String>) {
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val lines = File("days_of_week.txt").readLines()
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for ((i, line) in lines.withIndex()) {
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if (line.trim().isEmpty()) {
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println()
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continue
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}
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val days = line.trim().split(r)
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if (days.size != 7) throw RuntimeException("There aren't 7 days in line ${i + 1}")
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if (days.distinct().size < 7) { // implies some days have the same name
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println(" ∞ $line")
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continue
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}
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var len = 1
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while (true) {
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if (days.map { it.take(len) }.distinct().size == 7) {
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println("${"%2d".format(len)} $line")
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break
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}
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len++
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}
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}
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}
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