commit 70032b46a6ca37ccb33527568acc5efa9765fad6
parent 80bc6da60deaf47466d00cc771a2422a7d73da58
Author: Martin Ashby <martin@ashbysoft.com>
Date: Sun, 8 Dec 2024 23:06:36 +0000
Day5 pt1
Diffstat:
5 files changed, 1437 insertions(+), 4 deletions(-)
diff --git a/day5.txt b/day5.txt
@@ -0,0 +1,1374 @@
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+15,32,13,96,47,29,78
+37,63,83,71,95,92,72,77,52,43,65
+85,82,92,77,26,65,34,23,37,69,73,59,52,71,31,63,79,81,87,94,76
+79,83,87,94,47,11,56,86,29,91,88
+65,15,77,98,82,11,46,68,43
+37,92,95,68,77,51,22,86,91,82,85,13,65,23,56,88,98
+31,77,76,59,81,47,63,71,37,92,94
+65,98,34,26,29,82,52,37,69
+76,93,49,96,46,28,51
+75,42,94,96,68,46,32,98,47,95,88
+95,43,13,85,82,92,77,26,65,23,72,59,52,55,71,31,63,79,83
+65,69,73,71,93
+46,11,68,29,98,95,78,85,82,26,65
+78,18,96,88,91,11,29,28,13,92,98,46,68,22,56,32,43,86,85,15,82,95,75
+82,92,26,65,34,23,72,37,73,59,55,71,63,79,81,87,94
+92,11,15,34,77,98,95
+43,13,26,78,11,29,51,91,96,15,82,56,46,68,28,77,75,86,92
+93,81,83,49,46,52,56,71,68
+51,15,49,95,88,28,29,43,96,98,32,11,68,93,46,22,42,56,47,76,18,75,86
+88,75,51,98,43,78,85,82,92,77,26,65,34,23,72,37,59,52,71
+86,71,56,22,42,94,15
+96,93,76,91,18,22,42,56,43
+85,82,92,77,26,65,34,23,72,69,73,59,52,55,71,31,63,79,83,81,87,94,76
+81,47,49,32,46,15,28,11,68,86,29,91,51
+63,79,83,81,87,94,76,47,49,32,18,96,46,28,11,56,22,29,91
+87,42,79,88,46,83,22,56,49,76,96,47,32
+37,52,31,94,42,93,49,32,96,46,15
+11,68,22,86,91,88,51,98,95,13,85,82,92,77,65,34,72
+56,15,88,47,22,91,95,11,29,96,42,28,86,32,68,51,93,98,76,94,46,75,49
+82,56,68,91,51,96,78,86,75,85,15,18,88,28,49
+18,96,55,83,59,79,94,73,46,63,47,31,15,76,71,11,28,32,87
+47,93,49,96,15,28,56,22,29,91,43,78,13
+13,85,23,69,73,52,55,31,63,83,87
+49,32,18,56,68,86,91,88,75,51,78,85,82
+79,81,87,94,93,49,32,18,46,15,28,11,56,68,29,91,88
+83,37,34,92,13,23,78,31,79,82,77
+52,83,28,81,63,55,76,15,42,59,71,11,46,87,79,93,73,94,47,18,49
+73,23,51,95,29,86,26,72,78,75,77,91,13,85,82,92,69,98,65,88,59
+32,18,96,46,11,56,68,22,29,91,75,51,98,95,43,13,92
+69,73,93,18,47,55,83,94,71,63,37,76,52,34,49,72,81,79,87,32,31
+18,68,88,95,13,85,77
+92,82,95,85,77,18,46,86,15
+15,11,56,68,22,86,29,88,75,51,98,95,43,78,13,85,92,77,26,65,34
+22,56,98,85,28,29,91,18,92,13,95,77,68,88,43
+31,85,26,52,71,73,77,59,95,34,98,55,79
+92,72,82,68,51,75,86,11,56
+51,47,91,56,28,11,98
+55,81,76,15,11,32,49,71,73,47,59,52,46,31,63,79,28,96,94
+47,49,96,28,75,95,13
+55,83,81,76,93,96,28,68,22
+11,56,68,22,91,75,51,98,78,13,82,77,26,65,34,23,72
+71,79,11,83,15,18,31,86,47,22,96,87,81,94,93,68,49,63,56
+79,59,37,71,49,31,76,47,23,55,63,83,87,73,18,93,32,69,96
+37,71,72,26,87,55,92,85,65,31,13,79,69,73,81,59,94
+94,68,71,49,52,63,55,83,32,87,93,56,76,47,15,11,81,96,79,28,42,46,18
+56,47,31,81,22,96,18,29,79
+18,28,68,22,29,88,51
+51,95,85,92,26,65,34,23,72,73,59,55,71,31,63
+26,87,34,65,23,47,72,31,83,77,92
+72,59,87,55,52,34,71,37,93,49,31,79,42
+28,71,55,22,76,46,93,15,18,79,32,63,81,56,68
+29,91,88,75,51,98,95,43,78,13,82,77,65,34,23,72,37,69,73,59,52
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+65,86,72,34,11,77,56,43,95,29,75,51,13
+42,32,76,49,29,46,88,91,93,96,81
+65,77,63,71,85,95,83,69,73
+42,47,93,32,18,96,15,28,11,56,68,22,86,29,91,88,75,51,98,95,43
+96,46,11,56,68,22,91,78,13,82,26
+92,26,78,82,69,79,52,23,77,87,37,63,65,72,81,73,34,83,13
+34,23,72,37,69,52,55,71,31,63,79,83,81,87,94,76,42,93,49,32,18
+96,63,91,28,87,22,56,42,15,86,76
+88,98,95,85,82,77,26,65,34,72,69,73,59,52,55
+83,18,81,68,46,42,47,71,63,28,94,11,56,55,22,79,87,31,15,76,93,32,96
+37,42,73,87,32
+73,59,86,29,88,37,85
+81,32,94,63,28,47,42,83,96,79,18,55,59,46,93,87,76,11,15,31,49
+63,79,83,81,87,94,76,42,93,49,32,18,96,46,15,28,11,56,68,22,86,29,91
+65,34,73,59,52,94,93
+81,76,47,49,32,18,28
+52,55,71,31,63,79,83,81,18,96,46,15,11,56,68
+59,63,76,23,94,49,34,52,87,18,73,83,47,31,79
+59,37,87,42,31,81,83,15,94,18,52,46,32
+77,34,23,72,37,69,59,52,55,71,63,87,94,76,47
+88,18,87,91,94,76,75,46,51,22,15,32,11,49,47
+76,55,22,56,42,32,47
+94,55,26,23,63,85,77,52,79,59,69,92,65,81,13,37,83,73,71
+47,93,49,18,96,28,68,86,91,88,75,51,98,95,43,78,13
+59,55,23,83,31,82,37,13,65,63,85,52,71,78,79,87,73,92,77,81,69
+96,46,15,28,11,56,68,22,86,29,91,75,51,98,95,43,78,13,85,82,92,77,26
+49,18,96,46,15,28,86,29,91,75,51,98,78,13,82
+59,52,83,81,87,18,28
+55,47,81,94,79,92,72,23,65,34,69,87,59,77,26,73,31,76,37,42,52
+72,85,92,37,51,43,86,95,29
+87,94,47,93,49,46,15,28,11,56,22,86,29,91,88,51,98
+88,75,51,98,95,43,78,13,85,82,92,77,26,23,72,37,69,73,52,55,71
+76,28,11,86,98,95,43
+11,29,77,34,15,75,95,88,51,13,92,86,78,56,85,98,91,65,26,43,28
+29,91,51,98,95,78,85,82,77,26,23,72,37,69,73,59,52
+32,86,11,95,98,85,18,28,96,51,78,15,92
+88,43,78,26,65,34,23,72,73,59,71
+73,92,43,98,59,65,75,37,88,95,78,69,85
+86,42,96,94,15
+92,73,55,81,87,94,47
+94,72,26,73,87,47,63,42,59,49,55,81,76
+13,85,82,92,77,34,23,72,37,69,73,59,55,71,79,83,81,87,94
+55,13,77,71,52,65,95,63,43,51,85,31,72
+79,47,96,81,94,42,52,76,31,73,63,71,18,93,46,28,55
+59,52,31,83,81,94,76,42,47,93,49,32,18,96,15,28,11
+96,95,86,75,15,43,76,56,42
+96,83,63,46,47,71,28,15,56,22,86
+47,93,49,32,18,96,46,15,28,11,68,22,86,29,91,88,75,51,98,95,43,78,13
+15,88,81,56,68,46,28,47,22,51,49,91,42
+31,63,81,87,47,68,22
+22,86,91,88,75,51,98,95,43,78,13,85,82,92,77,26,65,34,23,72,37,69,73
+51,96,75,46,93,56,22,68,18,42,94,49,91,47,81,29,15,11,76,86,88
+94,42,47,93,18,96,46,15,28,11,56,22,29,91,88,51,95
+96,43,51,56,15,11,42,29,32,22,68,95,18,28,76,75,91,88,98,93,49,86,46
+11,86,68,92,22,65,46
+56,22,91,75,43,13,85,82,92,77,65,23,72
+81,79,69,59,76,83,94,23,42,26,55
+37,26,92,79,31,63,76,69,82,72,81,59,77,73,42,65,23,71,83,34,55,94,52
+69,59,71,63,81,42,49,32,96,46,28
+77,92,23,79,72,83,43,34,37,26,69,31,55,59,73,81,78,63,13
+32,72,47,46,42,55,69,73,93,83,76,37,63,52,96,31,79,59,18,81,49,94,71
+42,94,79,73,47,81,32
+87,42,93,32,96,46,28,11,86,91,88,75,98
+29,56,76,88,15,22,46,81,86,42,11,28,93,87,91,51,32,75,49
+32,28,22,91,95,85,92
+37,96,83,42,47,71,94,72,87,32,63,31,46
+83,18,87,76,93,47,79,81,88
+77,65,23,72,37,59,52,55,71,31,63,79,83,81,87,94,76,42,93
+65,86,23,43,59,37,98,26,34,91,72,82,92
+88,78,85,34,69,52,71
+69,73,59,52,71,31,63,79,83,81,87,94,76,42,47,93,49,32,96,15,28
+28,11,22,86,29,91,75,51,78,85,82,92,77,65,23
+82,65,13,26,23,29,72,95,98,75,92,77,86,69,68
+91,51,95,82,77,73,55
+82,92,77,26,73,52,55,71,83,94,42
+55,31,63,79,83,32,96,28,56,68,22
+42,49,32,96,15,28,11,56,68,22,86,51,78
+63,23,73,81,83,69,71,65,82,77,55,42,31,94,76,87,72,34,79,26,59
+98,95,78,92,77,26,34,23,69,73,59,52,55,63,79
+15,79,63,83,69,71,94,37,18
+15,28,11,22,86,29,91,88,75,51,98,95,43,78,85,82,92,77,26,65,34
+15,47,42,79,94,29,68,46,18
+75,51,98,95,43,13,82,92,77,26,65,34,72,37,59,52,55,71,31
+32,11,56,91,88,75,51,98,95,78,92
+75,51,95,26,37
+28,49,11,93,32,29,76,18,75,51,56,88,15,98,86,47,46,95,42,91,94,22,96
+96,46,15,11,22,98,43,13,92,77,26
+79,81,13,71,34,92,63,69,73,43,78,82,59,72,55
+11,81,22,15,68,42,51,29,28,94,47,96,32,87,56,49,93,75,76,46,86,88,18
+68,22,29,91,98,43,78,85,82,92,77,65,34,23,72,37,69
+51,29,86,91,93,85,46,18,88,95,13
+93,81,26,69,76,55,77
+65,43,82,52,73,77,78,13,92,59,75,34,98
+47,18,96,46,15,28,11,56,22,86,29,91,51,98,95,43,13
+94,77,37,76,31,55,26,65,87,73,93,72,81
+26,65,34,23,72,37,69,73,55,31,63,83,87,76,93
+96,15,95,56,88,98,43,28,91,77,82,86,75
+46,47,81,63,93,37,94,73,72,87,31
+52,87,49,31,93,63,73
+46,49,18,28,31,15,93,11,87
+93,51,18,11,42,88,56,49,95,78,86,47,98,32,28
+59,94,79,31,76,72,77,37,42,87,83,26,82,34,23,69,63
+28,77,43,51,88,92,22,86,98
+\ No newline at end of file
diff --git a/day5_sample.txt b/day5_sample.txt
@@ -0,0 +1,28 @@
+47|53
+97|13
+97|61
+97|47
+75|29
+61|13
+75|53
+29|13
+97|29
+53|29
+61|53
+97|53
+61|29
+47|13
+75|47
+97|75
+47|61
+75|61
+47|29
+75|13
+53|13
+
+75,47,61,53,29
+97,61,53,29,13
+75,29,13
+75,97,47,61,53
+61,13,29
+97,13,75,29,47
+\ No newline at end of file
diff --git a/src/main/scala/Day4.scala b/src/main/scala/Day4.scala
@@ -17,4 +17,20 @@ def slices(list: List[String]): List[String] =
val cols: List[String] = List.range(0, width).map(n => list.map(s => s.charAt(n)).mkString)
val diagL: List[String] = List.range(0, width*2-1).map(n => list.zipWithIndex.filter((s, ix) => n-ix >= 0 && n-ix < width).map((s, ix) => s.charAt(n-ix)).mkString)
val diagR: List[String] = List.range(1-width, width).map(n => list.zipWithIndex.filter((s, ix) => n+ix >= 0 && n+ix < width).map((s, ix) => s.charAt(n+ix)).mkString)
- rows.appendedAll(cols).appendedAll(diagL).appendedAll(diagR)
-\ No newline at end of file
+ rows.appendedAll(cols).appendedAll(diagL).appendedAll(diagR)
+
+def day4_pt2(input: Iterator[String]): Int =
+ val allowed = Set("MMASS", "SSAMM", "MSAMS", "SMASM")
+ stars(input.toList)
+ .count(s => allowed.contains(s))
+
+def stars(list: List[String]): List[String] =
+ val width = list(0).size
+ val height = list.size
+ List.range(1, width-1)
+ .flatMap(x => LazyList.continually(x).zip(List.range(1, height-1)))
+ .map((x, y) => List(list(y-1).charAt(x-1),
+ list(y-1).charAt(x+1),
+ list(y).charAt(x),
+ list(y+1).charAt(x-1),
+ list(y+1).charAt(x+1)).mkString)
+\ No newline at end of file
diff --git a/src/main/scala/Day5.scala b/src/main/scala/Day5.scala
@@ -0,0 +1,13 @@
+def day5_pt1(input: Iterator[String]): Int =
+ val lst = input.toList
+ val ix = lst.indexOf("")
+ val rulesStrs = lst.slice(0, ix)
+ val updatesStrs = lst.slice(ix+1, lst.size)
+ val rules = rulesStrs.map(s => {
+ val a = s.split("\\|").map(ss => Integer.parseInt(ss))
+ (a(0), a(1))
+ })
+ updatesStrs.map(s => s.split(",").map(s => Integer.parseInt(s)).toList)
+ .filter(l => l.sliding(2).forall(ll => rules.contains((ll(0), ll(1)))))
+ .map(l => l(l.size / 2))
+ .sum
diff --git a/src/main/scala/Main.scala b/src/main/scala/Main.scala
@@ -1,2 +1,2 @@
@main def run(): Unit =
- println(day4_pt1(scala.io.Source.fromFile("day4.txt").getLines()))
-\ No newline at end of file
+ println(day5_pt1(scala.io.Source.fromFile("day5.txt").getLines()))
+\ No newline at end of file
