feat: Day 2 !

days/02/part1.py

@@ -0,0 +1,32 @@
+with open("data/input.txt", "r") as f:
+    games = f.read()
+
+limits = {
+    "red": 12,
+    "green": 13,
+    "blue": 14
+}
+
+s = 0
+
+for game in games.split("\n")[:-1]:
+    parts = game.split(":")
+    head = parts[0]
+    identifier = head.split(" ")[1]
+    overflow = False
+    for draw in parts[1].split(";"):
+        draw = draw.strip()
+        for count in draw.split(","):
+            count = count.strip()
+            count_parts = count.split(" ")
+            color = count_parts[1]
+            amount = int(count_parts[0])
+            if amount > limits[color]:
+                overflow = True
+                break
+        if overflow:
+            break
+    if not overflow:
+        s += int(identifier)
+
+print(s)

days/02/part1/cube.pl

@@ -0,0 +1,62 @@
+#!/usr/bin/env perl
+use warnings;
+use strict;
+
+my $filename = '../data/input.txt';
+
+open(FH, '<', $filename) or die $!;
+
+sub possible_id {
+    my $line = $_[0];
+    my $reds = $_[1];
+    my $greens = $_[2];
+    my $blues = $_[3];
+    my @colors = qw(red green blue);
+    my @quantities = ($reds, $greens, $blues);
+    # Extract the id and game draws
+    my @game_parts = split /:/, $line, 2;
+    my @id_parts = split / /, $game_parts[0], 2;
+    my $id = $id_parts[1];
+    my @game_plays = split /;/, $game_parts[1];
+    foreach my $play (@game_plays) {
+        my @color_counts = (0, 0, 0);
+        my @play_draws = split /,/, $play;
+        foreach my $draw (@play_draws) {
+            my @draw_parts = split / /, $draw;
+            my $color = $draw_parts[2];
+            my $amount = int($draw_parts[1]);
+            for ((0..2)) {
+                my $idx = $_;
+                my $limit_color = $colors[$idx];
+                my $limit_amount = $quantities[$idx];
+                if ($color eq $limit_color) {
+                    $color_counts[$idx] += $amount;
+                }
+            }
+        }
+        # print join(", ", @color_counts) . "\n";
+        for ((0..2)) {
+            if ($quantities[$_] < $color_counts[$_]) {
+                return 0;
+
+            }
+        }
+    }
+    return int($id);
+}
+
+my $reds_limit = 12;
+my $greens_limit = 13;
+my $blues_limit = 14;
+
+my $sum = 0;
+while (<FH>) {
+    # print $_;
+    my $id = possible_id($_, $reds_limit, $greens_limit, $blues_limit);
+    $sum += $id;
+    # print $id . "\n";
+}
+
+close(FH);
+
+print $sum . "\n";

days/02/part2.py

@@ -0,0 +1,31 @@
+
+import numpy as np
+
+with open("data/input.txt", "r") as f:
+    games = f.read()
+
+limits = {
+    "red": 12,
+    "green": 13,
+    "blue": 14
+}
+
+s = 0
+
+for game in games.split("\n")[:-1]:
+    parts = game.split(":")
+    head = parts[0]
+    identifier = head.split(" ")[1]
+    max_counts = dict(red=0, green=0, blue=0)
+    for draw in parts[1].split(";"):
+        draw = draw.strip()
+        for count in draw.split(","):
+            count = count.strip()
+            count_parts = count.split(" ")
+            color = count_parts[1]
+            amount = int(count_parts[0])
+            if amount > max_counts[color]:
+                max_counts[color] = amount
+    s += np.prod(list(max_counts.values()))
+
+print(s)