Merge remote-tracking branch '2018/master'
This commit is contained in:
commit
2e1614a5dc
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#!/usr/bin/env python3
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import sys
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def delta_frequency(f = sys.stdin):
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df = 0
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frequency_count = {0: 1}
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frequency_list = []
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for l in f.readlines():
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frequency_list.append(l)
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first = None
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iteration = 1
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df_first_iteration = None
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while first is None:
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for l in frequency_list:
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df += int(l)
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if df not in frequency_count:
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frequency_count[df] = 1
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else:
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frequency_count[df] = frequency_count[df] + 1
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if not first:
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if frequency_count[df] >= 2:
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first = df
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if df_first_iteration is None:
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df_first_iteration = df
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print(df_first_iteration)
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if first is not None:
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print("First duplicate frequency: {}".format(first))
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if __name__ == '__main__':
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delta_frequency()
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|
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|
|
@ -0,0 +1,65 @@
|
|||
#!/usr/bin/env python3
|
||||
|
||||
import sys
|
||||
def checksum(l):
|
||||
double = 0
|
||||
triple = 0
|
||||
for item in l:
|
||||
d, t = count_duplicate(item)
|
||||
double += d
|
||||
triple += t
|
||||
return double * triple
|
||||
|
||||
def count_duplicate(item):
|
||||
double = 0
|
||||
triple = 0
|
||||
c = dict()
|
||||
for i in item:
|
||||
if i in c:
|
||||
c[i] += 1
|
||||
else:
|
||||
c[i] = 1
|
||||
for k,v in c.items():
|
||||
if v == 2:
|
||||
double = 1
|
||||
if v == 3:
|
||||
triple = 1
|
||||
#print(c)
|
||||
#print("{}: {}, {}".format(item, double, triple))
|
||||
return (double, triple)
|
||||
|
||||
def compare(item, l):
|
||||
for candidate in l:
|
||||
if candidate == item:
|
||||
continue
|
||||
diff = 0
|
||||
x = 0
|
||||
while x < len(item):
|
||||
if item[x] != candidate[x]:
|
||||
diff += 1
|
||||
x += 1
|
||||
if diff > 1:
|
||||
break
|
||||
#if diff > 1:
|
||||
# print("{} does not match {}: {} different".format(item, candidate, diff))
|
||||
if diff == 1:
|
||||
return candidate
|
||||
|
||||
def common(x, y):
|
||||
i = 0
|
||||
common = ""
|
||||
while i < len(x):
|
||||
if x[i] == y[i]:
|
||||
common += x[i]
|
||||
i += 1
|
||||
return common
|
||||
|
||||
if __name__ == '__main__':
|
||||
l = sys.stdin.readlines()
|
||||
print(checksum(l))
|
||||
for item in l:
|
||||
z = compare(item, l)
|
||||
if z is not None:
|
||||
print("{} / {}".format(item, z))
|
||||
print(common(item, z))
|
||||
break
|
||||
|
|
@ -0,0 +1,250 @@
|
|||
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|
||||
qywzphxoiseldjrbtfdgvjmpnu
|
||||
qfwzphxoiseydkrbtfcgvkmanu
|
||||
qywzphxdiqelqjrbtfcgvkmanu
|
||||
qywzvhxoiseldjrbtfognkmanu
|
||||
qywzphgoiseldjrbcfcgvtmanu
|
||||
qywophxoiseldjrbtpcgvkmank
|
||||
qywzphxoiszldjretfcgvkmabu
|
||||
qywzphxoiseldjhbtfcgvxmawu
|
||||
qcgzphxoiselejrbtfcgvkmanu
|
||||
qywzphxoisepdjrbtfcfvkcanu
|
||||
qivzphxniseldjrbtfcgvkmanu
|
||||
qywzhhxoiseldjrftxcgvkmanu
|
||||
qyazphxciseldjrbtfcgskmanu
|
||||
qywzphxoisoldgrbtfczvkmanu
|
||||
qywzmhxoiseldurbwfcgvkmanu
|
||||
qywzphxoistldjrbwfcgvkranu
|
||||
qywzphxoistedjrbtfcgokmanu
|
||||
qywzqhxodsecdjrbtfcgvkmanu
|
||||
qywzphxtisxldjrbtfcgvkhanu
|
||||
qywzphxoeseldjrtrfcgvkmanu
|
||||
qdwzphxoioeldjrbtfigvkmanu
|
||||
qjwzphxoisbldjrbtfcgvkmanz
|
||||
qywzphxoiseldbrbtfdgvlmanu
|
||||
qywzphxoiselddrbhvcgvkmanu
|
||||
zywzppxoiseldjrdtfcgvkmanu
|
||||
qywzppxqiselkjrbtfcgvkmanu
|
||||
qywzphxoihelbjrbtfcgvkmabu
|
||||
qywzphxoiseldjreyfcgvknanu
|
||||
qywzphxxrseldjrbtfcgvkmagu
|
||||
qywhpfxoiseldjrbtfdgvkmanu
|
||||
qywzphxoisxldjrdtfagvkmanu
|
||||
oywzphxxiseldjrbtfcgvkmaeu
|
||||
qywzphxoiselqirbtfvgvkmanu
|
||||
qywzphxoqseldhrbtfcgvkhanu
|
||||
qywzphxokseldjrbtfxgvkmaju
|
||||
qywzphtoiseldurbtfcfvkmanu
|
||||
qywzphxoiheudjrrtfcgvkmanu
|
||||
qrwzphxzigeldjrbtfcgvkmanu
|
||||
qywzphxoiseldorbtfcgvxmvnu
|
||||
qywzphxoisaldjpbqfcgvkmanu
|
||||
qywuphxoiselljrbtfchvkmanu
|
||||
qywzphxoisaldjrbefcgvkmsnu
|
||||
qywzphxoiteldjrbnfcgvkmanp
|
||||
qywhphxoiselqjrbtfcgvkmagu
|
||||
qywzjhxoisejdjrbtfcgvkmanr
|
||||
qywephaoiseldjrbtfcavkmanu
|
||||
qywcphxoireldjqbtfcgvkmanu
|
||||
qywzphxoiseldirbuicgvkmanu
|
||||
qywzphxoisecvnrbtfcgvkmanu
|
||||
qcwzphxoiseldjrbtfcgvrmaiu
|
||||
qywnphxoiseldjrntftgvkmanu
|
||||
qywzphxhisyldjrbtfcgvkmafu
|
||||
qyhzphxoiseldjrytfcgvkmanq
|
||||
vjwzbhxoiseldjrbtfcgvkmanu
|
||||
qyvzpsxoisuldjrbtfcgvkmanu
|
||||
qywzphxaiseldcrbefcgvkmanu
|
||||
qywzphxoiseldjgbtfsgvkfanu
|
||||
oiwzphxoiseldjrbtfcgvkmcnu
|
||||
qyezphxoiseldjrbtfcqvkmjnu
|
||||
tywzphxriseldzrbtfcgvkmanu
|
||||
yywzphxoiseldjbbtfugvkmanu
|
||||
qywzpfxviseldjrbttcgvkmanu
|
||||
qywzphxoiceldcrbtfugvkmanu
|
||||
qymzphxoiseldjratfcsvkmanu
|
||||
qywzphxoiselxjrbdfcgvkpanu
|
||||
qywzphxoiselujrbtfkgvimanu
|
||||
qywzshyoiseldjrbtfcgpkmanu
|
||||
qywzphxoiselfjrbtfsgvkmant
|
||||
qywpphxoiseldjxbtfcyvkmanu
|
||||
qywzfhxoiselqjrptfcgvkmanu
|
||||
qewzphxoiseldprbtfcgvkmand
|
||||
qywfphxoiseldlrbtfcgvkmgnu
|
||||
qywzphxoiseldjhbtqcovkmanu
|
||||
fywzphxoiseldlrbtfcgvkjanu
|
||||
sywzphxoiseldjrbhfccvkmanu
|
||||
qywzphxoiseldjfbtfcrvkmpnu
|
||||
sywzphxoisrldjrbtfczvkmanu
|
||||
|
|
@ -0,0 +1,145 @@
|
|||
#!/usr/bin/env python3
|
||||
|
||||
import collections
|
||||
import numpy
|
||||
import re
|
||||
import sys
|
||||
|
||||
matrix_size = [1000, 1000]
|
||||
|
||||
class Claim:
|
||||
id = None
|
||||
# Vector2 ish
|
||||
origin = None
|
||||
# Vector2 ish
|
||||
size = None
|
||||
matrix = None
|
||||
def __init__(self, id, origin, size):
|
||||
self.id = id
|
||||
self.origin = origin
|
||||
self.size = size
|
||||
# Not great to stop the matrix for the entire field in memory,
|
||||
# but it's small enough in this case.
|
||||
self.matrix = numpy.zeros(matrix_size, dtype = numpy.bool_)
|
||||
# Set '1' for all positions of
|
||||
x_offset = 0
|
||||
while x_offset < int(size[0]):
|
||||
y_offset = 0
|
||||
while y_offset < int(size[1]):
|
||||
position = (int(origin[0]) + x_offset, int(origin[1]) + y_offset)
|
||||
#print(position)
|
||||
self.matrix.itemset(position, True)
|
||||
y_offset += 1
|
||||
x_offset += 1
|
||||
|
||||
def all_points(self):
|
||||
d = {}
|
||||
x = int(self.origin[0])
|
||||
x_max = x + int(self.size[0])
|
||||
y_max = int(self.origin[1]) + int(self.size[1])
|
||||
while x < x_max:
|
||||
y = int(self.origin[1])
|
||||
while y < y_max:
|
||||
d[(x,y)] = 1
|
||||
y += 1
|
||||
x += 1
|
||||
return d
|
||||
|
||||
def does_overlap(self, other):
|
||||
other_start = other.vertices()[0]
|
||||
other_end = other.vertices()[3]
|
||||
# If any vertice is in the area defined by the other start and end,
|
||||
# the claims overlap in some way.
|
||||
for v in self.vertices():
|
||||
#print("Checking if {} is inside {}, {}".format(v, other_start, other_end))
|
||||
if (v[0] >= other_start[0] and v[0] <= other_end[0]) and (v[1] >= other_start[1] and v[1] <= other_end[1]):
|
||||
return True
|
||||
return False
|
||||
|
||||
def vertices(self):
|
||||
return [
|
||||
[self.origin[0], self.origin[1]],
|
||||
[self.origin[0], self.origin[1] + self.size[1]],
|
||||
[self.origin[0] + self.size[0], self.origin[1]],
|
||||
[self.origin[0] + self.size[0], self.origin[1] + self.size[1]]
|
||||
]
|
||||
|
||||
def overlap(self, other):
|
||||
return numpy.transpose(numpy.nonzero(numpy.logical_and(self.matrix, other.matrix)))
|
||||
|
||||
def __str__(self):
|
||||
return "#{} {},{}: {}x{}".format(self.id, int(self.origin[0]),
|
||||
int(self.origin[1]), int(self.size[0]),
|
||||
int(self.size[1]))
|
||||
|
||||
def read_input(lines, pattern):
|
||||
r = []
|
||||
for l in lines:
|
||||
m = pattern.match(l)
|
||||
if m is None:
|
||||
print('Warning: did not match line "{}"'.format(l))
|
||||
continue
|
||||
r.append(
|
||||
Claim(m.group('id'),
|
||||
numpy.array([m.group('origin_x'), m.group('origin_y')], dtype = int),
|
||||
numpy.array([m.group('size_x'), m.group('size_y')], dtype = int)
|
||||
)
|
||||
)
|
||||
return r
|
||||
|
||||
if __name__ == '__main__':
|
||||
p = re.compile('^#(?P<id>\d+) @ (?P<origin_x>\d+),(?P<origin_y>\d+): (?P<size_x>\d+)x(?P<size_y>\d+)')
|
||||
lines = sys.stdin.readlines()
|
||||
claims = read_input(lines, p)
|
||||
print("{} claims".format(len(claims)))
|
||||
other_claims = claims.copy()
|
||||
checked = 0
|
||||
check_count = len(claims) * ((len(claims)-1)/2)
|
||||
overlapping_points = set()
|
||||
single_points = set()
|
||||
counter = collections.Counter()
|
||||
claimPoints = {}
|
||||
for claim in claims:
|
||||
#print(claim.all_points())
|
||||
p = set(claim.all_points())
|
||||
claimPoints[claim] = p
|
||||
counter.update(p)
|
||||
for k, v in counter.items():
|
||||
if v >= 2:
|
||||
overlapping_points.add(k)
|
||||
else:
|
||||
single_points.add(k)
|
||||
print("{} overlapping points, {} single points".format(len(overlapping_points), len(single_points)))
|
||||
potential_claims = set()
|
||||
for claim in claims:
|
||||
pts = claimPoints[claim].intersection(overlapping_points)
|
||||
print("{}: {} intersecting points".format(claim, len(pts)))
|
||||
if len(pts) == 0:
|
||||
potential_claims.add(claim)
|
||||
for c in potential_claims:
|
||||
print(c)
|
||||
#overlaps = {}
|
||||
#for claim in claims:
|
||||
# other_claims.remove(claim)
|
||||
# if claim in overlaps.keys():
|
||||
# continue
|
||||
# for other in other_claims:
|
||||
# if claim in overlaps.keys():
|
||||
# break
|
||||
# if other in overlaps.keys():
|
||||
# continue
|
||||
# print("Checking {} vs {} ({} current overlaps)".format(claim, other, len(overlaps.keys())))
|
||||
# if numpy.any(claim.overlap(other)):
|
||||
# if claim in overlaps:
|
||||
# overlaps[claim].append(other)
|
||||
# else:
|
||||
# overlaps[claim] = [other]
|
||||
# if other in overlaps:
|
||||
# overlaps[other].append(claim)
|
||||
# else:
|
||||
# overlaps[other] = [claim]
|
||||
#for claim in claims:
|
||||
# if claim not in overlaps.keys():
|
||||
# print(claim)
|
||||
# #unOverlapped = [x for x in claims and x not in overlaps.keys()]
|
||||
# #print(unOverlapped)
|
||||
|
|
@ -0,0 +1,118 @@
|
|||
#!/usr/bin/env python3
|
||||
|
||||
import collections
|
||||
import datetime
|
||||
import re
|
||||
import sys
|
||||
|
||||
class Event:
|
||||
|
||||
def __init__(self, date, event):
|
||||
m = re.match('(?P<year>\d{4})-(?P<month>\d{2})-(?P<day>\d{2}) (?P<hour>\d{2}):(?P<minute>\d{2})', date)
|
||||
self.date = datetime.datetime(int(m.group('year')), int(m.group('month')),
|
||||
int(m.group('day')), int(m.group('hour')),
|
||||
int(m.group('minute')))
|
||||
self.event = event
|
||||
|
||||
def __str__(self):
|
||||
return "[{}] {}".format(self.date, self.event)
|
||||
|
||||
class Guard:
|
||||
|
||||
def __init__(self, id):
|
||||
self.id = id
|
||||
self.midnight_sleep = collections.Counter()
|
||||
self.on_shift = False
|
||||
self.sleep = False
|
||||
|
||||
def start_shift(self, date):
|
||||
self.on_shift = date
|
||||
|
||||
def end_shift(self, date):
|
||||
self.on_shift = False
|
||||
if self.sleep:
|
||||
self.wake_up(date)
|
||||
|
||||
def fall_asleep(self, date):
|
||||
self.sleep = date
|
||||
|
||||
def wake_up(self, date):
|
||||
self.process_sleep(self.sleep, date)
|
||||
self.sleep = False
|
||||
|
||||
def process_sleep(self, start, end):
|
||||
current_datetime = start
|
||||
# If the end is outside the start hour, clip it
|
||||
clip_end = datetime.datetime(start.year, start.month, start.day, start.hour + 1, 0)
|
||||
clip = False
|
||||
if clip_end < end:
|
||||
clip = True
|
||||
end = clip_end
|
||||
#print("Processing sleep for guard {} from {} to {} ({})".format(
|
||||
# self.id, start, end, clip))
|
||||
#print(self.midnight_sleep)
|
||||
while current_datetime < end:
|
||||
if current_datetime.hour != 0:
|
||||
current_datetime += datetime.timedelta(minutes = 1)
|
||||
continue
|
||||
self.midnight_sleep.update({current_datetime.minute: 1})
|
||||
current_datetime += datetime.timedelta(minutes = 1)
|
||||
#print(self.midnight_sleep)
|
||||
|
||||
def total_sleep(self):
|
||||
return sum(self.midnight_sleep.values())
|
||||
|
||||
def common_minute(self):
|
||||
r = self.midnight_sleep.most_common(1)
|
||||
if not r:
|
||||
r = [(-1, -1)]
|
||||
return r
|
||||
|
||||
def replay(events):
|
||||
guards = {}
|
||||
current_guard = None
|
||||
p = re.compile('Guard #(?P<id>\d+) begins shift')
|
||||
for e in events:
|
||||
m = p.match(e.event)
|
||||
if m:
|
||||
if current_guard:
|
||||
current_guard.end_shift(e.date)
|
||||
# Guard is coming on shift
|
||||
if m.group('id') in guards.keys():
|
||||
current_guard = guards[m.group('id')]
|
||||
else:
|
||||
current_guard = Guard(m.group('id'))
|
||||
guards[m.group('id')] = current_guard
|
||||
current_guard.start_shift(e.date)
|
||||
continue
|
||||
if e.event == 'falls asleep':
|
||||
current_guard.fall_asleep(e.date)
|
||||
if e.event == 'wakes up':
|
||||
current_guard.wake_up(e.date)
|
||||
return guards
|
||||
|
||||
if __name__ == '__main__':
|
||||
lines = sys.stdin.readlines()
|
||||
p = re.compile('\[(?P<date>\d{4}-\d{2}-\d{2} \d{2}:\d{2})\] (?P<event>.*)')
|
||||
events = []
|
||||
for line in lines:
|
||||
m = p.match(line)
|
||||
if not m:
|
||||
print("Warning line '{}' did not match".format(line))
|
||||
else:
|
||||
events.append(Event(m.group('date'), m.group('event')))
|
||||
events.sort(key=lambda e: e.date)
|
||||
guards = list(replay(events).values())
|
||||
#print(guards)
|
||||
guards.sort(key=lambda g: g.total_sleep())
|
||||
for g in guards:
|
||||
print("{}: {} minutes asleep, most common minute {}".format(
|
||||
g.id, g.total_sleep(), g.common_minute()))
|
||||
print('------------------------------------')
|
||||
guards.sort(key=lambda g: g.common_minute()[0][1] if g.common_minute() else 0)
|
||||
for g in guards:
|
||||
print("{}: {} minutes asleep, most common minute {}".format(
|
||||
g.id, g.total_sleep(), g.common_minute()))
|
||||
#print(guards[-1].id * guards[-1].common_minute()[0])
|
||||
#for e in events:
|
||||
# print(e)
|
||||
|
|
@ -0,0 +1,68 @@
|
|||
#!/usr/bin/env python3
|
||||
|
||||
import string
|
||||
import sys
|
||||
|
||||
def react(code, offset = 0):
|
||||
reacted = False
|
||||
current = None
|
||||
previous = None
|
||||
index = 0
|
||||
for c in code[offset:]:
|
||||
if index < 1:
|
||||
index += 1
|
||||
continue
|
||||
try:
|
||||
current = code[index]
|
||||
except IndexError:
|
||||
break
|
||||
previous = code[index-1]
|
||||
#print("Checking {} & {}".format(previous, current))
|
||||
if previous.upper() == current.upper():
|
||||
if previous != current:
|
||||
#print("{} and {} reacted around index {} ({})".format(previous, current, index, code[index-2:index+2]))
|
||||
reacted = True
|
||||
break
|
||||
index += 1
|
||||
if reacted:
|
||||
#start = index - 10
|
||||
#if start < 0:
|
||||
start = 0
|
||||
return (True, start, code[:index-1] + code[index+1:])
|
||||
else:
|
||||
return (False, index, code)
|
||||
|
||||
if __name__ == '__main__':
|
||||
lines = sys.stdin.readlines()
|
||||
# Part 1
|
||||
#for l in lines:
|
||||
# reacted = True
|
||||
# code = l.strip()
|
||||
# index = 0
|
||||
# iteration = 0
|
||||
# while reacted:
|
||||
# (reacted, index, code) = react(code, index)
|
||||
# #print("{}, {}, iteration {}".format(reacted, index, iteration))
|
||||
# iteration += 1
|
||||
# print("Resulting code: '{}' ({} iterations) has {} units".format(code, iteration, len(code)))
|
||||
permutations = {}
|
||||
for l in lines:
|
||||
for character in string.ascii_lowercase:
|
||||
reacted = True
|
||||
code = l.strip()
|
||||
code = code.replace(character, '')
|
||||
code = code.replace(character.upper(), '')
|
||||
index = 0
|
||||
iteration = 0
|
||||
while reacted:
|
||||
(reacted, index, code) = react(code, index)
|
||||
iteration += 1
|
||||
permutations[character] = {
|
||||
'code': code,
|
||||
'size': len(code),
|
||||
'iterations': iteration,
|
||||
}
|
||||
for character in string.ascii_lowercase:
|
||||
print("Option {}{} result in code length {} ({} iterations)".format(
|
||||
character, character.upper(), permutations[character]['size'],
|
||||
permutations[character]['iterations']))
|
||||
Loading…
Reference in New Issue