From cdbfc2b9736129402f1097bbedbe715db064ea8d Mon Sep 17 00:00:00 2001
From: Bruno BELANYI <bruno@belanyi.fr>
Date: Fri, 4 Dec 2020 09:50:23 +0100
Subject: [PATCH] 2020: d04: ex1: add solution

---
 2020/d04/ex1/ex1.py | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100755 2020/d04/ex1/ex1.py

diff --git a/2020/d04/ex1/ex1.py b/2020/d04/ex1/ex1.py
new file mode 100755
index 0000000..5193652
--- /dev/null
+++ b/2020/d04/ex1/ex1.py
@@ -0,0 +1,38 @@
+#!/usr/bin/env python
+
+import sys
+from typing import List
+
+
+def validate(passport: List[str]) -> int:
+    fields = [
+        "byr",
+        "iyr",
+        "eyr",
+        "hgt",
+        "hcl",
+        "ecl",
+        "pid",
+    ]
+    for field in fields:
+        if field not in passport:
+            return False
+    return True
+
+
+def solve(passport_fields: List[List[str]]) -> int:
+    return sum(validate(passport) for passport in passport_fields)
+
+
+def main() -> None:
+    passports: List[List[str]] = [[]]
+    for line in sys.stdin:
+        if line == "\n" or line == "":
+            passports.append([])
+            continue
+        passports[-1] += [s.split(":")[0] for s in line.split(" ")]
+    print(solve(passports))
+
+
+if __name__ == "__main__":
+    main()