34 lines
1.0 KiB
Python
34 lines
1.0 KiB
Python
openers = ['(', '[', '{', '<']
|
|
closers = [')', ']', '}', '>']
|
|
points = [3, 57, 1197, 25137]
|
|
|
|
scores = []
|
|
with open('data', 'r') as fp:
|
|
# NOTE(dev): We assume all lines are the same length
|
|
for line in fp:
|
|
stack = []
|
|
corrupt = False
|
|
for ch in line.strip():
|
|
if(ch in openers):
|
|
stack.append(ch)
|
|
else:
|
|
try:
|
|
i = closers.index(ch)
|
|
last = stack[-1]
|
|
stack.pop()
|
|
if(last != openers[i]):
|
|
corrupt = True
|
|
break
|
|
except ValueError: # not an opener or closer!
|
|
pass
|
|
if(not corrupt and len(stack)):
|
|
line_score = 0
|
|
for ch in reversed(stack):
|
|
line_score *= 5
|
|
line_score += openers.index(ch) + 1
|
|
scores.append(line_score)
|
|
|
|
scores.sort()
|
|
print('scores[int(', len(scores), '/ 2 )]')
|
|
print(scores[int(len(scores) / 2)])
|