Day 24: Maple

[aoc.git] / 2023 / 48.pl

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+#!/usr/bin/perl -w
+
+use v5.38;
+
+my @stones = map { chomp; [ /-?\d+/g ] } <>;
+
+my @eq;
+for my $stone (0 .. 2) {
+       my @st = @{ $stones[$stone] };
+       for my $co (0 .. 2) {
+               my $c = $st[$co+3];
+               my $d = $st[$co];
+               push @eq, "a$co * t$stone + b$co = $c*t$stone + $d";
+       }
+}
+my @vars;
+push @vars, "a$_", "b$_", "t$_" for 0 .. 2;
+
+# Maple:
+say "res := solve({\n\t", join(",\n\t", @eq), "\n},";
+say "\t[", join(", ", @vars), " ]";
+say ");";
+say "res[1][2]+res[1][5]+res[1][8];";