day 4 formatting and day 5 part 1 & part 2

2018/day-5/python/main.py

@@ -0,0 +1,35 @@
+import os, sys, time, progressbar, string
+
+path = os.path.join(sys.path[0], '..', 'input')
+data = open(path, 'r').read()
+# data = data[:10000]
+data = 'dabAcCaCBAcCcaDA'
+
+def react(string):
+    look = True
+    while look:
+        look = False
+        for i in range(len(string)-1):
+            if string[i].lower() == string[i + 1].lower() and string[i] != string[i + 1]:
+                string = string[:i] + string[i+2:]
+                look = True
+                break
+    return string
+
+# t1 = time.time()
+# data = react(data) #11476
+# t2 = time.time()
+# print('Part 1 Solution: {}'.format(len(data)))
+# print('Solved in {}s\n'.format(round(t2 - t1, 3)))
+
+t1 = time.time()
+lengths = {}
+charset = ''.join(list(set(data)))
+for char in progressbar.progressbar(list(charset)):
+    table = str.maketrans({char : None, char.lower() : None})
+    lengths[char] = len(react(data.translate(table)))
+char, length = min(lengths.items(), key=lambda item : item[1])
+t2 = time.time()
+ 
+print('\nPart 2 Solution: Removing polymer {}{} had the most effect at length {}.'.format(char, char.lower(), length))
+print('Solved in {}s\n'.format(round(t2 - t1, 3)))