Solve 2020/04

2020/04/solution1.py

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+"""
+Solution to 2020/04
+"""
+import re
+
+passports = []
+
+with open('input', 'r') as f:
+    for passportRaw in f.read().strip().split('\n\n'):
+        passport = {}
+        for [key, value] in re.findall(r'([\w]{3}):(\S*)', passportRaw):
+            passport[key] = value
+        # print(passportRaw)
+        # print(passport)
+        # print()
+        passports.append(passport)
+
+print('Passports:', len(passports))
+required_fields = [
+    'byr',
+    'iyr',
+    'eyr',
+    'hgt',
+    'hcl',
+    'ecl',
+    'pid'
+]
+
+
+def is_valid(passport):
+    print()
+    print(passport)
+    for field in required_fields:
+        print('field in passport:', field, field in passport)
+        if field not in passport:
+            return False
+    return True
+
+
+print('Count:')
+print(len(list(x for x in passports if is_valid(x))))

2020/04/solution2.py

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+"""
+Solution to 2020/04
+"""
+import re
+
+passports = []
+
+with open('input', 'r') as f:
+    for passportRaw in f.read().strip().split('\n\n'):
+        passport = {}
+        for [key, value] in re.findall(r'([\w]{3}):(\S*)', passportRaw):
+            passport[key] = value
+        # print(passportRaw)
+        # print(passport)
+        # print()
+        passports.append(passport)
+
+print('Passports:', len(passports))
+
+required_fields = [
+    'byr',
+    'iyr',
+    'eyr',
+    'hgt',
+    'hcl',
+    'ecl',
+    'pid'
+]
+
+
+def validate_int(value, min, max):
+    try:
+        value = int(value)
+        if value < min or value > max:
+            return False
+        return True
+    except:
+        return False
+
+
+def is_valid(passport):
+    for field in required_fields:
+        if field not in passport:
+            return False
+    if not validate_int(passport['byr'], 1920, 2002):
+        return False
+    if not validate_int(passport['iyr'], 2010, 2020):
+        return False
+    if not validate_int(passport['eyr'], 2020, 2030):
+        return False
+    hgt_val = passport['hgt'][:-2]
+    hgt_type = passport['hgt'][-2:]
+    if hgt_type == 'cm':
+        if not validate_int(hgt_val, 150, 193):
+            return False
+    elif hgt_type == 'in':
+        if not validate_int(hgt_val, 59, 76):
+            return False
+    else:
+        return False
+    if not re.match('#[0-9a-f]{6}', passport['hcl']):
+        return False
+    if not passport['ecl'] in ['amb', 'blu', 'brn', 'gry', 'grn', 'hzl', 'oth']:
+        return False
+    print(passport['pid'])
+    if not len(passport['pid']) == 9 or not validate_int(passport['pid'], 0, 999999999):
+        return False
+    return True
+
+
+print('Count:')
+print(len(list(x for x in passports if is_valid(x))))