add solution 4, parts 1 and 2

2020/4/sample_input_1

@@ -0,0 +1,13 @@
+ecl:gry pid:860033327 eyr:2020 hcl:#fffffd
+byr:1937 iyr:2017 cid:147 hgt:183cm
+
+iyr:2013 ecl:amb cid:350 eyr:2023 pid:028048884
+hcl:#cfa07d byr:1929
+
+hcl:#ae17e1 iyr:2013
+eyr:2024
+ecl:brn pid:760753108 byr:1931
+hgt:179cm
+
+hcl:#cfa07d eyr:2025 pid:166559648
+iyr:2011 ecl:brn hgt:59in

2020/4/solution.py

@@ -0,0 +1,138 @@
+#!/usr/bin/python
+
+import re
+
+class Passport:
+    def __init__(self):
+        self.info = {
+            "byr": "",
+            "iyr": "",
+            "eyr": "",
+            "hgt": "",
+            "hcl": "",
+            "ecl": "",
+            "pid": "",
+            "cid": "",
+        }
+    def set(self, info, data):
+        self.info[info] = data
+    def exist(self, info):
+        return not self.info[info] == ""
+    def ret(self, info):
+        return self.info[info]
+
+def reader(line):
+    p = Passport()
+    spaced = line.split(' ')
+    for i in spaced:
+        pairs = i.split(':')
+        p.set(pairs[0], pairs[1])
+    return p
+
+def alphasplit(s):
+    return (''.join(filter(str.isdigit, s)) or None, 
+            ''.join(filter(str.isalpha, s)) or None)
+
+def color(line):
+    if not line[0] == "#": return False
+    if not len(line) == 7: return False
+    line.lower()
+    gcnt = 0
+    for i in line[1:]:
+        cnt = 0
+        for j in [c for c in 'abcdef1234567890']:
+            if i == j: cnt += 1
+        if cnt > 1: gcnt += 1
+    if not gcnt == 7: return False
+    return True
+
+def mcolor(line):
+    if not line[0] == "#": return False
+    if not len(line) == 7: return False
+    acceptable = [c for c in 'abcdef1234567890']
+    line = line.lower().rstrip()
+    m = re.search(r'^#(?:[0-9a-fA-F]{3}){1,2}$', line)
+    if not m: return False
+    return True
+
+def s_verify(p):
+    if p.exist('byr') and \
+        p.exist('iyr') and \
+        p.exist('eyr') and \
+        p.exist('hgt') and \
+        p.exist('hcl') and \
+        p.exist('ecl') and \
+        p.exist('pid'): return True
+    return False
+
+def c_verify(p):
+    if not s_verify(p): return False
+    for i in ['byr', 'iyr', 'eyr']:
+        if not len(p.ret(i)) == 4: return False
+    if int(p.ret('byr')) >= 1920 and \
+        int(p.ret('byr')) <= 2002: pass
+    else:
+        return False
+    if int(p.ret('iyr')) >= 2010 and \
+        int(p.ret('iyr')) <= 2020: pass
+    else:
+        return False
+    if int(p.ret('eyr')) >= 2020 and \
+        int(p.ret('eyr')) <= 2030: pass
+    else:
+        return False
+
+    spl = alphasplit(p.ret('hgt'))
+    units = spl[1]
+    if units == None:
+        return False
+    num = spl[0]
+    if units == "cm":
+        if int(num) >= 150 and int(num) <= 193: pass
+        else: return False
+    elif units == "in":
+        if int(num) >= 59 and int(num) <= 76: pass
+        else: return False
+    else:
+        return False
+
+    if not mcolor(p.ret('hcl')): return False
+
+    if not p.ret('ecl') in 'amb blu brn gry grn hzl oth'.split(' '): return False
+    if not len(p.ret('pid')) == 9: return False
+
+    return True
+
+
+
+fd = open('input', 'r')
+lines = fd.readlines()
+buf = [""]
+
+for i in lines:
+    i = i.rstrip()
+    if len(i) == 0:
+        buf.append("")
+        continue
+    if buf[-1] == "":
+        buf[-1] = i
+    else:
+        buf[-1] += " "
+        buf[-1] += i
+
+passports = []
+
+for i in buf:
+    passports.append(reader(i))
+
+cnt = 0
+for i in passports:
+    if s_verify(i): cnt += 1
+
+print(cnt)
+
+cnt = 0
+for i in passports:
+    if c_verify(i): cnt += 1
+
+print(cnt)