Added AOC 2017 day 08 - 10

www/statics/aoc/2017/08_solution-1.py

@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+
+import aoc
+import re
+
+
+def parse_line(line: str):
+    p = re.compile('(?P<r1>[a-z]+) (?P<op>inc|dec) (?P<param>-?[0-9]+) if (?P<r2>[a-z]+) (?P<cmp>[!=<>]+) (?P<arg>-?[0-9]+)')
+    m = p.match(line)
+
+    if m is None: raise "No match"
+
+    return m.group('r1'), m.group('op'), int(m.group('param')), m.group('r2'), m.group('cmp'), int(m.group('arg'))
+
+
+def evaluate_cmp(mem: dict, reg: str, op: str, arg: str):
+    if not reg in mem:
+        mem[reg] = 0
+    if op == "==":
+        return (mem[reg] == arg)
+    if op == "!=":
+        return (mem[reg] != arg)
+    if op == "<":
+        return (mem[reg] < arg)
+    if op == ">":
+        return (mem[reg] > arg)
+    if op == "<=":
+        return (mem[reg] <= arg)
+    if op == ">=":
+        return (mem[reg] >= arg)
+    raise "invalid op: " + op
+
+
+def exec_cmd(mem: dict, reg: str, op: str, arg: str):
+    if not reg in mem:
+        mem[reg] = 0
+    if op == "inc":
+        mem[reg] = mem[reg] + arg
+    elif op == "dec":
+        mem[reg] = mem[reg] - arg
+    else:
+        raise "invalid op: " + op
+
+
+
+rawinput = aoc.read_input(8)
+
+data = list(map(lambda x: parse_line(x), rawinput.splitlines()))
+
+registers = dict()
+
+for line in data:
+    if evaluate_cmp(registers, line[3], line[4], line[5]):
+        exec_cmd(registers, line[0], line[1], line[2])
+
+
+max = None
+
+for v in registers.values():
+    if max is None or v > max:
+        max = v
+
+print(max)
+
+
+