Initial commit / Day 01 / Day 02

.gitignore

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+.env
+venv

.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/

.idea/inspectionProfiles/profiles_settings.xml

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+<component name="InspectionProjectProfileManager">
+  <settings>
+    <option name="USE_PROJECT_PROFILE" value="false" />
+    <version value="1.0" />
+  </settings>
+</component>

.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.8 (python-aoc-2020)" project-jdk-type="Python SDK" />
+</project>

.idea/modules.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/python-aoc-2020.iml" filepath="$PROJECT_DIR$/.idea/python-aoc-2020.iml" />
+    </modules>
+  </component>
+</project>

.idea/python-aoc-2020.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/venv" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/vcs.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

day01/part1.py

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+#!/usr/bin/env python3
+
+lines = (int(x.strip()) for x in open("input.txt"))
+
+last = float('inf')
+cnt = 0
+
+for line in lines:
+    if last < line:
+        cnt += 1
+    last = line
+
+print(cnt)

day01/part2.py

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+#!/usr/bin/env python3
+
+lines = (int(x.strip()) for x in open("input.txt"))
+
+last = [float('inf')] * 3
+cnt = 0
+
+for line in lines:
+    nxt = last[1:] + [line]
+    if sum(last) < sum(nxt):
+        cnt += 1
+    last = nxt
+
+print(cnt)

day02/part1.py

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+#!/usr/bin/env python3
+
+lines = (x.strip() for x in open("input.txt"))
+
+hor = 0
+depth = 0
+for line in lines:
+    cmd, strVal = line.split(" ")
+    val = int(strVal)
+    if cmd == 'forward':
+        hor += val
+    elif cmd == 'down':
+        depth += val
+    else:
+        depth -= val
+
+print(hor*depth)

day02/part2.py

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+#!/usr/bin/env python3
+
+lines = (x.strip() for x in open("input.txt"))
+
+hor = 0
+depth = 0
+aim = 0
+for line in lines:
+    cmd, strVal = line.split(" ")
+    val = int(strVal)
+    if cmd == 'forward':
+        hor += val
+        depth += aim * val
+    elif cmd == 'down':
+        aim += val
+    else:
+        aim -= val
+
+print(hor*depth)

newday.sh

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+# load .env
+if [ -f .env ]; then
+  set -o allexport; source .env; set +o allexport
+fi
+
+# Create dir / abort if exists
+f="day$(printf %02d $1)"
+echo "$f"
+mkdir "$f"
+if [ $? -ne 0 ]; then { echo "$f already exists" ; exit 1; } fi
+
+# create part files with template
+txt=$(cat <<EOF
+#!/usr/bin/env python3
+
+lines = (x.strip() for x in open("input.txt"))
+
+for line in lines:
+    pass
+EOF
+)
+echo "$txt" > "$f/part1.py"
+echo "$txt" > "$f/part2.py"
+
+# fetch input (set AOC_SESSION in .env file or as env var)
+curl --request GET -sL \
+     --cookie "session=$AOC_SESSION" \
+     --url "https://adventofcode.com/2021/day/$(echo $1 | sed 's/^0*//')/input"\
+     --output "$f/input.txt"