From a6efae14f9f20a225dcb1d7a3e45946c991b386e Mon Sep 17 00:00:00 2001
From: Clement Desmidt <clement@desmidt.fr>
Date: Wed, 1 Dec 2021 17:04:58 +0100
Subject: [PATCH] :tada: initialise le repo comme en 2020 et 2019

---
 .gitignore       |  2 ++
 add.sh           | 19 +++++++++++++++++++
 day_1/part_1.php | 15 +++++++++++++++
 day_1/part_2.php | 18 ++++++++++++++++++
 4 files changed, 54 insertions(+)
 create mode 100644 .gitignore
 create mode 100755 add.sh
 create mode 100644 day_1/part_1.php
 create mode 100644 day_1/part_2.php

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..d5a90de
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+input.txt
+/.idea
\ No newline at end of file
diff --git a/add.sh b/add.sh
new file mode 100755
index 0000000..89c9837
--- /dev/null
+++ b/add.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/zsh
+
+SCRIPT_PATH="$( cd "$(dirname "$0")" ; pwd -P )"
+NUMBER=$1
+
+if [ ! -d "${SCRIPT_PATH}/day_${NUMBER}" ]; then
+  mkdir "${SCRIPT_PATH}/day_${NUMBER}"
+else
+  echo "folder ${SCRIPT_PATH}/day_${NUMBER} already exists"
+  exit
+fi
+
+cd "${SCRIPT_PATH}/day_${NUMBER}" || exit
+
+touch input.txt part_1.php part_2.php
+
+echo "DONE"
+
+exit
\ No newline at end of file
diff --git a/day_1/part_1.php b/day_1/part_1.php
new file mode 100644
index 0000000..d09ab0a
--- /dev/null
+++ b/day_1/part_1.php
@@ -0,0 +1,15 @@
+<?php
+
+$numbers = array_map('intval', explode("\n", file_get_contents('input.txt')));
+
+$current = array_shift($numbers);
+$count = 0;
+foreach ($numbers as $number) {
+    if ($number > $current) {
+        $count++;
+    }
+
+    $current = $number;
+}
+
+echo $count;
\ No newline at end of file
diff --git a/day_1/part_2.php b/day_1/part_2.php
new file mode 100644
index 0000000..7309e31
--- /dev/null
+++ b/day_1/part_2.php
@@ -0,0 +1,18 @@
+<?php
+
+$numbers = array_map('intval', explode("\n", file_get_contents('input.txt')));
+
+$current_slice = array_sum(array_slice($numbers, 0, 3));
+
+$count = 0;
+
+for ($i = 1, $l = count($numbers) - 3; $i <= $l; $i++) {
+    $new_slice = array_sum(array_slice($numbers, $i, 3));
+    if ($new_slice > $current_slice) {
+        $count++;
+    }
+
+    $current_slice = $new_slice;
+}
+
+echo $count;
\ No newline at end of file