Puzzle du 8 décembre 2017

2017/8/values.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+import sys, re
+pattern = re.compile(r"([a-z]+) (inc|dec) ([0-9\-]+) if ([a-z]+) ([><!=]+) ([0-9\-]+)")
+data = [pattern.findall(line.strip())[0] for line in sys.stdin.readlines()]
+values = {}
+def getvar(name):
+    try:
+        return values[name]
+    except KeyError:
+        return 0
+
+def run_if(variable, operator, value):
+    if operator == '==':
+        return getvar(variable) == value
+    elif operator == '!=':
+        return getvar(variable) != value
+    elif operator == '>':
+        return getvar(variable) > value
+    elif operator == '<':
+        return getvar(variable) < value
+    elif operator == '>=':
+        return getvar(variable) >= value
+    elif operator == '<=':
+        return getvar(variable) <= value
+
+max_ever = -9000
+for line in data:
+    if run_if(line[3], line[4], int(line[5])):
+        if line[1] == 'inc':
+            values[line[0]] = getvar(line[0]) + int(line[2])
+        elif line[1] == 'dec':
+            values[line[0]] = getvar(line[0]) - int(line[2])
+        if values[line[0]] > max_ever:
+            max_ever = values[line[0]]
+
+print(max(values.values()), max_ever)