day 10

2018-12-10 10:32:32 -05:00 · 2018-12-10 10:32:32 -05:00 · 468f5a3a85
commit 468f5a3a85
parent 42f1e0bfcb
2 changed files with 366 additions and 0 deletions
--- a/2018/10/input.txt
+++ b/2018/10/input.txt
@ -0,0 +1,300 @@
+position=<-32494,  54541> velocity=< 3, -5>
+position=<-21598,  11014> velocity=< 2, -1>
+position=< 21906,  21894> velocity=<-2, -2>
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+position=< 11066, -21625> velocity=<-1,  2>
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+position=< 54575,  21901> velocity=<-5, -2>
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+position=< 21942, -10744> velocity=<-2,  1>
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+position=< 54598,  21898> velocity=<-5, -2>
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+position=< 54582,  11019> velocity=<-5, -1>
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+position=< 11066, -10742> velocity=<-1,  1>
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+position=< 43669, -43384> velocity=<-4,  4>
+position=<-21558, -10739> velocity=< 2,  1>
+position=< 11042, -32504> velocity=<-1,  3>
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+position=<-21598, -32502> velocity=< 2,  3>
+position=<-21563, -10739> velocity=< 2,  1>
+position=< 21922, -43387> velocity=<-2,  4>
+position=< 21962, -43379> velocity=<-2,  4>
+position=< 43668,  32781> velocity=<-4, -3>
+position=<-54246,  54540> velocity=< 5, -5>
+position=< 21908, -21628> velocity=<-2,  2>
+position=< 43711, -54259> velocity=<-4,  5>
+position=<-54212, -54259> velocity=< 5,  5>
+position=<-21574,  32777> velocity=< 2, -3>
+position=< 21942, -32507> velocity=<-2,  3>
+position=< 43722,  11013> velocity=<-4, -1>
+position=< 32845,  54532> velocity=<-3, -5>
+position=< 43702,  21897> velocity=<-4, -2>
+position=<-32492,  54536> velocity=< 3, -5>
+position=<-21574, -10747> velocity=< 2,  1>
+position=<-54213, -43379> velocity=< 5,  4>
+position=<-54218, -32505> velocity=< 5,  3>
+position=<-43316, -21624> velocity=< 4,  2>
+position=<-10734, -21625> velocity=< 1,  2>
+position=<-21598, -10748> velocity=< 2,  1>
+position=<-10693, -43379> velocity=< 1,  4>
+position=<-32491, -43384> velocity=< 3,  4>
+position=< 21926, -43380> velocity=<-2,  4>
+position=<-10691, -54259> velocity=< 1,  5>
+position=<-54238,  54539> velocity=< 5, -5>
+position=< 11031,  43652> velocity=<-1, -4>
+position=<-43334,  11018> velocity=< 4, -1>
+position=< 43682, -21625> velocity=<-4,  2>
+position=< 21958, -54261> velocity=<-2,  5>
+position=< 54595, -32499> velocity=<-5,  3>
+position=< 54564,  43658> velocity=<-5, -4>
+position=<-32486, -10746> velocity=< 3,  1>
--- a/2018/10/sol1.pl
+++ b/2018/10/sol1.pl
@ -0,0 +1,66 @@
+use 5.20.0;
+use warnings;
+use experimental qw/
+    signatures
+    postderef
+/;
+
+use List::AllUtils qw/ pairmap minmax zip min/;
+use Term::Caca;
+
+my @points =  map { [  map { [ split ', ' ] } /(?<=\<).*?(?=>)/g ] }  <>;
+
+use DDP;
+
+my $width = 1E9;
+
+my $time = -1;
+
+while() {
+
+    move(\@points);
+    $time++;
+
+    my $new_width = width(@points);
+    #    say $width;
+    last if $new_width > $width;
+    $width = $new_width;
+}
+
+# for part II
+# say $time; exit;
+
+move(\@points,-1);
+
+my $minx = min map { $_->[0][0] } @points;
+my $miny = min map { $_->[0][1] } @points;
+
+$_->[0] = [
+    $_->[0][0] - $minx,
+    $_->[0][1] - $miny,
+] for @points;
+
+
+my $caca = Term::Caca->new;
+
+for my $p ( @points ) {
+    $caca->text( $p->[0], '*' );
+}
+
+$caca->refresh;
+
+my $foo = <>;
+
+sub move($points,$dir=1) {
+        $_->[0] = [
+            pairmap { $a + $dir * $b } zip $_->[0]->@*, $_->[1]->@*
+        ] for @$points;
+}
+
+sub width(@points) {
+    ( pairmap { $b - $a }
+        minmax map { $_->[0][0] } @points
+    )[0];
+}
+
+