Created
April 1, 2011 13:43
-
-
Save akihiro4chawon/898160 to your computer and use it in GitHub Desktop.
競技プログラミングモードのscalaを書いてみたw
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// お題:時間帯重複チェック(応用編) 別の答案(この答案は、入力チェックはしておりません) | |
// <http://d.hatena.ne.jp/fumokmm/20110329/1301403400> | |
// | |
// (こちらの解答を参考にした後に作成しました → http://d.hatena.ne.jp/route150/20110401/1301661345 | |
object Test extends Application { | |
type TSpan = (Int, Int, Int, Int) | |
def solve(ts: TSpan*) = { | |
val toAns: Seq[Int] => TSpan = { case Seq(a, b) => (a / 60, a % 60, b / 60, b % 60) } | |
val dup = (ts flatMap {case (h1, m1, h2, m2) => h1 * 60 + m1 until h2 * 60 + m2} groupBy identity collect { case(x, l) if l.size > 1 => x}).toSeq.sorted | |
((-2 +: dup :+ -2) sliding 2 collect {case Seq(a, b) if b - a != 1 => Seq(a + 1, b)}).toSeq.flatten filter {_ >= 0} grouped 2 map toAns | |
} | |
for {arg <-Seq( | |
// 例1(出力:(12, 0, 12, 15)) | |
Seq((12, 0, 13, 0), (10, 0, 12, 15)), | |
// 例2(出力:(9, 0, 10, 30), (16, 0, 17, 0)) | |
Seq((16, 0, 23, 0), (9, 0, 17, 0), (5, 0, 10, 30)), | |
// 例3(出力:(13, 0, 14, 0), (15, 0, 16, 0), (17, 0, 18, 0), (19, 0, 20, 0), (21, 0, 22, 0)) | |
Seq((12, 0, 23, 0), (13, 0, 14, 0), (15, 0, 16, 0), (17, 0, 18, 0), (19, 0, 20, 0), (21, 0, 22, 0)), | |
// 例4(出力:(10, 30, 11, 30)) | |
Seq((10, 0, 12, 0), (11, 0, 11, 30), (10, 30, 11, 15)), | |
// 例5(なし) | |
Seq((9, 0, 17, 0), (19, 0, 21, 0)), | |
// コーナケース1(なし) | |
Seq((1, 0, 2, 0), (2, 0, 3, 0)), | |
// コーナケース2((1, 59, 2, 0)) | |
Seq((1, 0, 2, 0), (1, 59, 3, 0)), | |
// コーナケース3((0, 0, 0, 1), (23, 59, 24, 0)) | |
Seq((0, 0, 24, 0), (0, 0, 0, 1), (23, 59, 24, 0)) | |
)} println(solve(arg :_*) mkString ",") | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment