day 07

07/input.sample01

@@ -0,0 +1,6 @@
+abba[mnop]qrst
+abcd[bddb]xyyx
+aaaa[qwer]tyui
+ioxxoj[asdfgh]zxcvbn
+ioxxo[j[asdfgh]z]xcvbn
+

07/input.sample02

@@ -0,0 +1,4 @@
+aba[bab]xyz
+xyx[xyx]xyx
+aaa[kek]eke
+zazbz[bzb]cdb

07/part01.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python
+
+import re
+import argparse
+
+
+RE_ABBA = re.compile(r'(\w)(?!\1)(\w)\2\1')
+RE_HYPERNET = re.compile(r'\[[^\]]+\]')
+
+def load_file(filename):
+    with open(filename) as f:
+        for line in f:
+            yield line.strip()
+
+def check_ip(data):
+    for line in RE_HYPERNET.findall(data):
+        if RE_ABBA.search(line):
+            return 0
+    x = RE_ABBA.search(data)
+    if RE_ABBA.search(data):
+        return 1
+    return 0
+
+def main(args):
+    count = 0
+    for LINE in load_file(args.input):
+        count += check_ip(LINE)
+
+    print(count)
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description='AdventOfCode 2016 Day 01')
+    parser.add_argument('--input', '-i', action='store',  required=True, help='input file')
+    args = parser.parse_args()
+
+    main(args)

07/part02.py

@@ -0,0 +1,48 @@
+#!/usr/bin/env python
+
+import re
+import argparse
+
+
+RE_ABA = re.compile(r'(?=((\w)(?!\2)\w\2))')
+RE_HYPERNET = re.compile(r'\[([^\]]+)\]')
+
+def load_file(filename):
+    with open(filename) as f:
+        for line in f:
+            yield line.strip()
+
+def check_ip(data):
+    def reverse_aba(aba):
+        return "{}{}{}".format(aba[1], aba[0], aba[1])
+
+    aba_all = []
+    for aba in RE_ABA.findall(data):
+        aba_all.append(aba[0])
+
+    aba_hyper = []
+    for hyper in RE_HYPERNET.findall(data):
+        for aba in RE_ABA.findall(hyper):
+            aba_hyper.append(aba[0])
+
+    for aba in aba_hyper:
+        aba_all.remove(aba)
+
+    for aba in aba_hyper:
+        if reverse_aba(aba) in aba_all:
+            return 1
+    return 0
+
+def main(args):
+    count = 0
+    for LINE in load_file(args.input):
+        count += check_ip(LINE)
+
+    print(count)
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description='AdventOfCode 2016 Day 01')
+    parser.add_argument('--input', '-i', action='store',  required=True, help='input file')
+    args = parser.parse_args()
+
+    main(args)

README.md

@@ -10,3 +10,4 @@
 - **Day 4**: Security Through Obscurity
 - **Day 5**: How About a Nice Game of Chess?
 - **Day 6**: Signals and Noise
+- **Day 7**: Internet Protocol Version 7