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Thanks, and have fun :)

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Peter 2020-12-25 13:39:56 +08:00
parent 5bcca706c8
commit 02453aca1d
2 changed files with 32 additions and 12 deletions
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14
24/c.py
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@ -22,14 +22,10 @@ def getHexAdjacent(vec):
}) })
return adj return adj
def getHexAdjacentState(vec):
getHexAdjacent
return True
def toggle(boolean): def toggle(boolean):
return (False if boolean else True) return (False if boolean else True)
grid = {(0,0,0):{'state':False}}#'adj':getHexAdjacent((0,0,0)), grid = {(0,0,0):{'state':False}}
vectors = [] vectors = []
for direction in directions: for direction in directions:
@ -39,12 +35,11 @@ for direction in directions:
vec = getHexAdjacent(vec)[dir_] vec = getHexAdjacent(vec)[dir_]
grid.update({vec:{'state':toggle(grid[vec]['state'] if vec in grid else False)}}) grid.update({vec:{'state':toggle(grid[vec]['state'] if vec in grid else False)}})
vectors.append(vec) vectors.append(vec)
# print({x:vectors.count(x) for x in vectors})
# print(len([vectors.count(x) for x in vectors if (vectors.count(x) % 2 == 1)]))
#Part 1 #Part 1
print(len([ x for x in grid if (grid[x]['state'] == True)])) # Black => True, white => false print(len([ x for x in grid if (grid[x]['state'] == True)])) # Black => True, white => false
#Part 2
grid_ = deepcopy(grid) #expand our space by one hextile in each direction grid_ = deepcopy(grid) #expand our space by one hextile in each direction
for cell in grid: for cell in grid:
adj = getHexAdjacent(cell) adj = getHexAdjacent(cell)
@ -66,16 +61,11 @@ while i < 100:
if grid[cell_]['state'] == True: if grid[cell_]['state'] == True:
c+=1 c+=1
else: else:
# print(len(grid_))
grid_.update({cell_:{'state':False}}) grid_.update({cell_:{'state':False}})
if grid[cell]['state'] == True and (c == 0 or c > 2): if grid[cell]['state'] == True and (c == 0 or c > 2):
# print('false')
grid_[cell]['state'] = False grid_[cell]['state'] = False
elif grid[cell]['state'] == False and c == 2: elif grid[cell]['state'] == False and c == 2:
# print('true')
grid_[cell]['state'] = True grid_[cell]['state'] = True
# print(len(grid))
# print(len(grid_))
i+=1 i+=1
print(len([ x for x in grid_ if (grid_[x]['state'] == True)])) print(len([ x for x in grid_ if (grid_[x]['state'] == True)]))

30
25/a.py Normal file
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@ -0,0 +1,30 @@
div = 20201227
card_public = 5764801
door_public = 17807724
def transform(subject,lpt):
value = 1
c = 0
while c < lpt:
value *= subject
value = value % div
# print(c, value)
c+=1
return value
def bruteforce(value_goal):
lpt = 1
value = 1
while True:
value *= 7
value = value % div
if value == value_goal:
return lpt
lpt += 1
card_lpt_size = bruteforce(card_public)
door_lpt_size = bruteforce(door_public)
print(card_lpt_size, door_lpt_size)
print(transform(door_public,card_lpt_size))