07

07/07-1.py

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+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+file = "./input.txt"
+#file = "./ex.txt"
+from time import time
+start_time = time()
+
+def read_file(filename:str)->list[str]:
+    result = []
+    input_file = open(filename, "r")
+    for line in input_file:
+        line = line.strip()
+        if line == "":
+            continue
+        else:
+            result.append(line)
+    input_file.close()
+    return result
+
+def check_line(l:str)->bool:
+    result = False
+    inside_brackets = False
+    for i in range(len(l)-3):
+        if l[i] == "[":
+            inside_brackets = True
+            continue
+        elif l[i] == "]":
+            inside_brackets = False
+            continue
+        elif inside_brackets and l[i] != l[i+1] and l[i] == l[i+3] and l[i+1] == l[i+2]:
+            return False
+        elif not inside_brackets and l[i] != l[i+1] and l[i] == l[i+3] and l[i+1] == l[i+2]:
+            result = True
+    return result
+
+if __name__ == "__main__":
+    data = read_file(file)
+    sol = 0
+
+    for d in data:
+        if check_line(d):
+            sol += 1
+
+    print(f"Solution Part1: {sol}")
+    print(f'Runtime: {time()-start_time:.4f} s')

07/07-2.py

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+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+file = "./input.txt"
+#file = "./ex2.txt"
+from time import time
+start_time = time()
+
+def read_file(filename:str)->list[str]:
+    result = []
+    input_file = open(filename, "r")
+    for line in input_file:
+        line = line.strip()
+        if line == "":
+            continue
+        else:
+            result.append(line)
+    input_file.close()
+    return result
+
+def check_line(l:str)->bool:
+    triple_in = []
+    triple_out = []
+    inside_brackets = False
+    for i in range(len(l)-2):
+        if l[i+1] in ["[", "]"]:
+            continue
+        elif l[i] == "[":
+            inside_brackets = True
+            continue
+        elif l[i] == "]":
+            inside_brackets = False
+            continue
+        elif inside_brackets and l[i] != l[i+1] and l[i] == l[i+2]:
+            triple_in.append(f"{l[i]}{l[i+1]}{l[i+2]}")
+        elif not inside_brackets and l[i] != l[i+1] and l[i] == l[i+2]:
+            triple_out.append(f"{l[i]}{l[i+1]}{l[i+2]}")
+    for t in triple_in:
+        if f"{t[1]}{t[0]}{t[1]}" in triple_out:
+            return True
+    return False
+
+
+if __name__ == "__main__":
+    data = read_file(file)
+    sol = 0
+
+    for d in data:
+        if check_line(d):
+            sol += 1
+
+    print(f"Solution Part1: {sol}")
+    print(f'Runtime: {time()-start_time:.4f} s')

07/ex.txt

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+abba[mnop]qrst
+abcd[bddb]xyyx
+aaaa[qwer]tyui
+ioxxoj[asdfgh]zxcvbn

07/ex2.txt

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+aba[bab]xyz
+xyx[xyx]xyx
+aaa[kek]eke
+zazbz[bzb]cdb