d6: python

2022/d6/run-py.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env sh
 echo "example"
-python3 ./src/d5.py ./data/example.txt
+python3 ./src/d6.py ./data/example.txt
 
 echo "submission"
-python3 ./src/d5.py ./data/submission.txt
+python3 ./src/d6.py ./data/submission.txt
 

2022/d6/src/d6.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+
+from typing import TextIO
+
+
+def part1(f: TextIO):
+    s = f.read().strip()
+    print(f"{s=}")
+    for i in range(3, len(s)):
+        if len({c for c in s[i-3:i+1]}) == 4:
+            return i + 1
+    return None
+
+def part2(f: TextIO):
+    s = f.read().strip()
+    print(f"{s=}")
+    for i in range(13, len(s)):
+        if len({c for c in s[i-13:i+1]}) == 14:
+            return i + 1
+    return None
+
+def main(fileloc: str):
+    with open(fileloc, "r") as f:
+        print(f"{part1(f)=}")
+
+    with open(fileloc, "r") as f:
+        print(f"{part2(f)=}")
+
+
+if __name__ == "__main__":
+    import sys
+    main(sys.argv[1])
+