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adv19.py
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adv19.py
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#!/usr/bin/env python3
import os, sys, re, math, subprocess
import operator, itertools, functools, collections
import timeit, random, time, builtins
assert sys.hexversion >= 0x03080000
# exec(open('adv19.py').read())
# ###########################################################################
# ###########################################################################
#
# 2019 DAY 25
#
# ###########################################################################
# 25165890
def d19251(input=None):
input = input or open('inputs/1925.in').read()
input = list(map(int, input.strip().split(',')))
input = collections.defaultdict(int, enumerate(input))
command, prevcmd = None, None
def inputl():
nonlocal command, prevcmd
while True:
cmd = command
command = None; prevcmd = cmd
print(f'>>> CMD={cmd}')
for c in map(ord, cmd + '\n'):
yield c
generator = processIC23(
input, inputl().__next__, yield_on_input=True)
def visit(path):
nonlocal outtmp, command
prgs = outtmp.strip().split('\n\n')
name, desc = prgs[0].splitlines()
doors = list(map(lambda l: l[2:], prgs[1].splitlines()[1:]))
items = list(map(lambda l: l[2:], prgs[2].splitlines()[1:]))
od = {'north': 'south', 'south': 'north', 'west': 'east', 'east': 'west'}
pdoor = od[path[-1]] if path else None
if pdoor: doors.remove(pdoor)
print(f'---------------------')
print(f'{name=}')
print(f' {path=}')
print(f' {desc=}')
print(f' {doors=} {pdoor=}')
print(f' {items=}')
for item in items:
if item in ['escape pod', 'giant electromagnet', 'photons',
'molten lava', 'infinite loop']:
continue
yield f'take {item}'
print(' ', (outtmp.strip().splitlines()[:],))
for door in doors:
yield door
yield from visit(path + [door])
if pdoor:
yield pdoor
if not path:
yield from ['west', 'north', 'north', 'west']
# analysis failure - room on west
# drop all
yield 'inv'
invent = list(map(lambda i: i[2:], outtmp.strip().splitlines()[1:-2]))
for i in invent: yield f'drop {i}'
# try every combination
for nbitems in range(1, len(invent) + 1):
for comb in itertools.combinations(invent, nbitems):
print(f'{nbitems=} {comb=}')
for i in comb: yield f'take {i}'
yield 'west'
if 'Droids on this ship are lighter' in outtmp:
print('TOO HEAVY')
elif 'Droids on this ship are heavier' in outtmp:
print('TOO LIGHT')
else: return # END ???
for i in comb: yield f'drop {i}'
visitor = visit([])
outtmp = ''
for n in itertools.count():
try: out = next(generator)
except StopIteration:
print(outtmp); print('BYE'); break
if not out is None: # output
outtmp += chr(out)
continue
if not outtmp: # yielding
continue
# input
try: command = next(visitor)
except StopIteration: break
outtmp = ''
# ###########################################################################
#
# 2019 DAY 24
#
# ###########################################################################
input241 = """
....#
#..#.
#..##
..#..
#....
"""
# 28781019
def d19241(input=None):
input = input or open('inputs/1924.in').read()
input = input.strip('\n').splitlines()
cgrid = dict([((x, y), c) for (y, l) in enumerate(input) for (
x, c) in enumerate(l)])
csize = max(map(operator.itemgetter(0), cgrid.keys())) + 1
def neigh(x, y):
return filter(
lambda x_y: all(map(lambda c: 0 <= c < csize, x_y)),
[(x - 1, y), (x + 1, y), (x, y - 1), (x, y + 1)])
def ngrid(cgrid):
nxtgr = dict(cgrid)
for x in range(csize):
for y in range(csize):
nbugs = len(list(filter(lambda c: cgrid[c] == '#', neigh(x, y))))
if cgrid[(x, y)] == '#': n = '#' if (nbugs == 1) else '.'
else: n = '#' if (nbugs == 1 or nbugs == 2) else '.'
nxtgr[(x, y)] = n
return nxtgr
def strgrid(grid):
s = ''
for y in range(csize):
for x in range(csize):
s += grid.get((x, y))
s += '\n'
return s
print(strgrid(cgrid))
seen, sgrid = set([]), None
while True:
sgrid = strgrid(cgrid)
if sgrid in seen: break
seen.add(sgrid)
cgrid = ngrid(cgrid)
print(strgrid(cgrid))
print(sum([2 ** (y * csize + x) for x in range(
csize) for y in range(csize) if cgrid[(x, y)] == '#']))
# 1939
def d19242(input=None):
input = input or open('inputs/1924.in').read()
input = input.strip('\n').splitlines()
cgrid = dict([((x, y, 0), c) for (y, l) in enumerate(input) for (
x, c) in enumerate(l)])
csize = max(map(operator.itemgetter(0), cgrid.keys())) + 1
def neigh(x, y, l):
ns = list(filter(
lambda xyl: (0 <= xyl[0] < csize) and (0 <= xyl[1] < csize) and xyl[0:2] != (2, 2),
[(x - 1, y, l), (x + 1, y, l), (x, y - 1, l), (x, y + 1, l)]))
if x == 0: ns.append((1, 2, l - 1)) # XXX
if y == 0: ns.append((2, 1, l - 1)) # XXX
if x == 4: ns.append((3, 2, l - 1)) # XXX
if y == 4: ns.append((2, 3, l - 1)) # XXX
if (x, y) == (2, 1): # XXX
ns.extend([(0, 0, l + 1), (1, 0, l + 1), (2, 0, l + 1), (3, 0, l + 1), (4, 0, l + 1)])
if (x, y) == (2, 3): # XXX
ns.extend([(0, 4, l + 1), (1, 4, l + 1), (2, 4, l + 1), (3, 4, l + 1), (4, 4, l + 1)])
if (x, y) == (1, 2): # XXX
ns.extend([(0, 0, l + 1), (0, 1, l + 1), (0, 2, l + 1), (0, 3, l + 1), (0, 4, l + 1)])
if (x, y) == (3, 2): # XXX
ns.extend([(4, 0, l + 1), (4, 1, l + 1), (4, 2, l + 1), (4, 3, l + 1), (4, 4, l + 1)])
return ns
def ngrid(cgrid):
nxtgr = dict(cgrid)
levels = list(map(operator.itemgetter(2), cgrid.keys()))
for l in range(min(levels) - 1, max(levels) + 2):
for x in range(csize):
for y in range(csize):
nbugs = len(list(filter(lambda c: cgrid.get(c, None) == '#', neigh(x, y, l))))
if cgrid.get((x, y, l), None) == '#':
n = '#' if (nbugs == 1) else '.'
else:
n = '#' if (nbugs == 1 or nbugs == 2) else '.'
nxtgr[(x, y, l)] = n
nxtgr[(2, 2, l)] = '?'
return nxtgr
for n in itertools.count():
#
if False:
print(f'----- {n=} ------\n')
levels = list(map(operator.itemgetter(2), cgrid.keys()))
for l in range(min(levels), max(levels) + 1):
if not any(filter(lambda k_v: k_v[0][2] == l and k_v[1] == '#', cgrid.items())): continue
print(f'{n=} level={l}')
for y in range(csize):
print(' ', end='')
for x in range(csize):
print('', cgrid.get((x, y, l), '?'), end='')
print()
print()
print(f'----------------')
#
nbugs = len(list(filter(lambda c: c == '#', cgrid.values())))
print(f'{n=} {nbugs=}')
if n == 200: break
cgrid = ngrid(cgrid)
# n=0 level=0
# . . . . #
# # . . # .
# # . . # #
# . . # . .
# # . . . .
# n=1 level=-1
# . . . . .
# . . # . .
# . . ? # .
# . . # . .
# . . . . .
# n=1 level=0
# # . . # .
# # # # # .
# # # ? . #
# # # . # #
# . # # . .
# n=1 level=1
# . . . . #
# . . . . #
# . . ? . #
# . . . . #
# # # # # #
# ###########################################################################
#
# 2019 DAY 23
#
# ###########################################################################
def processIC23(prog, input_func, yield_on_input=False, dbg=False):
def debug(*args):
if not dbg: return
print(*args)
def param(pm, op):
if pm == 0: return prog[op]
elif pm == 1: return op
elif pm == 2: return prog[rb + op]
else: assert 0
def paddr(pm, op):
if pm == 0: return op
elif pm == 2: return rb + op
else: assert 0
def pstr(pm, op):
if pm == 0: return 'M[%d](%d)' % (op, prog[op])
elif pm == 1: return 'I(%d)' % (op)
elif pm == 2: return 'M[%d+%d](%d)' % (rb, op, prog[rb + op])
else: assert 0
pc, rb = 0, 0
while True:
pm3, pm2, pm1, *opc = ('%05d' % prog[pc])
pm3, pm2, pm1 = int(pm3), int(pm2), int(pm1)
opc = int(''.join(opc))
if opc == 1: # ADD
op1, op2, op3 = prog[pc + 1], prog[pc + 2], prog[pc + 3]
assert pm3 in [0, 2] and pm2 in [0, 1, 2] and pm1 in [0, 1, 2]
debug('# PC=%05d OPC=%05d | ADD | %s = %s + %s (= %d)' % (
pc, prog[pc], pstr(pm3, op3), pstr(pm1, op1), pstr(pm2, op2),
param(pm1, op1) + param(pm2, op2)))
prog[paddr(pm3, op3)] = param(pm1, op1) + param(pm2, op2)
pc += 4
elif opc == 2: # MUL
op1, op2, op3 = prog[pc + 1], prog[pc + 2], prog[pc + 3]
assert pm3 in [0, 2] and pm2 in [0, 1, 2] and pm1 in [0, 1, 2]
debug('# PC=%05d OPC=%05d | MUL | %s = %s * %s (= %d)' % (
pc, prog[pc], pstr(pm3, op3), pstr(pm1, op1), pstr(pm2, op2),
param(pm1, op1) * param(pm2, op2)))
prog[paddr(pm3, op3)] = param(pm1, op1) * param(pm2, op2)
pc += 4
elif opc == 3: # INPUT
op1 = prog[pc + 1]
assert pm3 == 0 and pm2 == 0 and pm1 in [0, 2]
if yield_on_input: yield None
input_ = input_func()
debug('# PC=%05d OPC=%05d | INP | %s = (%s)' % (
pc, prog[pc], pstr(pm1, op1), input_))
prog[paddr(pm1, op1)] = input_
pc += 2
continue
elif opc == 4: # OUTPUT
op1 = prog[pc + 1]
assert pm3 == 0 and pm2 == 0 and pm1 in [0, 1, 2]
output = param(pm1, op1)
debug('# PC=%05d OPC=%05d | OUT | %s >>> %d' % (
pc, prog[pc], pstr(pm1, op1), output))
yield output
pc += 2
continue
elif opc == 5: # JUMP_IF_TRUE
op1, op2 = prog[pc + 1], prog[pc + 2]
assert pm3 == 0 and pm2 in [0, 1, 2] and pm1 in [0, 1, 2]
debug('# PC=%05d OPC=%05d | JTR | if %s: goto %s' % (
pc, prog[pc], pstr(pm1, op1), pstr(pm2, op2)))
pc = param(pm2, op2) if param(pm1, op1) else (pc + 3)
elif opc == 6: # JUMP_IF_FALSE
op1, op2 = prog[pc + 1], prog[pc + 2]
assert pm3 == 0 and pm2 in [0, 1, 2] and pm1 in [0, 1, 2]
debug('# PC=%05d OPC=%05d | JFL | if not %s: goto %s' % (
pc, prog[pc], pstr(pm1, op1), pstr(pm2, op2)))
pc = param(pm2, op2) if not param(pm1, op1) else (pc + 3)
elif opc == 7: # LESS_THAN
op1, op2, op3 = prog[pc + 1], prog[pc + 2], prog[pc + 3]
assert pm3 in [0, 2] and pm2 in [0, 1, 2] and pm1 in [0, 1, 2]
debug('# PC=%05d OPC=%05d | LTH | %s = %s < %s (= %d)' % (
pc, prog[pc], pstr(pm3, op3), pstr(pm1, op1), pstr(pm2, op2),
1 if (param(pm1, op1) < param(pm2, op2)) else 0))
prog[paddr(pm3, op3)] = 1 if (param(pm1, op1) < param(pm2, op2)) else 0
pc += 4
elif opc == 8: # EQUAL
op1, op2, op3 = prog[pc + 1], prog[pc + 2], prog[pc + 3]
assert pm3 in [0, 2] and pm2 in [0, 1, 2] and pm1 in [0, 1, 2]
debug('# PC=%05d OPC=%05d | EQU | %s = %s == %s (= %d)' % (
pc, prog[pc], pstr(pm3, op3), pstr(pm1, op1), pstr(pm2, op2),
1 if (param(pm1, op1) == param(pm2, op2)) else 0))
prog[paddr(pm3, op3)] = 1 if (param(pm1, op1) == param(pm2, op2)) else 0
pc += 4
elif opc == 9: # ADJUST_RB
op1 = prog[pc + 1]
assert pm3 == 0 and pm2 == 0 and pm1 in [0, 1, 2]
debug('# PC=%05d OPC=%05d | NRB | RB = %s + rb(%d) = %d' % (
pc, prog[pc], pstr(pm1, op1), rb, rb + param(pm1, op1)))
rb += param(pm1, op1)
pc += 2
elif opc == 99: # EXIT
debug('# PC=%05d OPC=%05d | EXT' % (pc, opc))
break
else:
debug('# PC=%05d OPC=%05d | ???' % (pc, opc))
assert 0
return
# 23213
def d19231(input=None):
input = input or open('inputs/1923.in').read()
input = list(map(int, input.strip().split(',')))
nbcomputers = 50
generators, inputs, outputs = {}, {}, {}
def inputl(addr):
while True:
vlist = inputs.get(addr, None)
value = vlist.pop(0) if vlist else -1
print(f'# <INP {addr=} {value=}')
yield value
for addr in range(nbcomputers):
inputs[addr] = [addr]
input_ = collections.defaultdict(int, enumerate(input))
generators[addr] = processIC23(
input_, inputl(addr).__next__, yield_on_input=True)
for n in itertools.count():
for addr in range(nbcomputers):
try: out = next(generators[addr])
except StopIteration: raise
# INPUT
if out is None: continue
# OUTPUT
outputs.setdefault(addr, []).append(out)
if len(outputs[addr]) < 3: continue
# packet ready to be sent
out1, out2, out3 = outputs[addr]
print(f'# >OUT {addr=:03} [dest={out1:03} x={out2:03} y={out3:03}]')
inputs.setdefault(out1, []).append(out2)
inputs.setdefault(out1, []).append(out3)
outputs[addr].clear()
if out1 == 255: return # RESULT
# 17874
def d19232(input=None):
input = input or open('inputs/1923.in').read()
input = list(map(int, input.strip().split(',')))
nbcomputers = 50
generators, inputs, outputs = {}, {}, {}
def inputl(addr):
while True:
vlist = inputs.get(addr, None)
value = vlist.pop(0) if vlist else -1
yield value
for addr in range(nbcomputers):
inputs[addr] = [addr]
input_ = collections.defaultdict(int, enumerate(input))
generators[addr] = processIC23(
input_, inputl(addr).__next__, yield_on_input=True)
waiting, idle_start, last_y = [], None, None
for n in itertools.count():
for addr in range(nbcomputers):
try: out = next(generators[addr])
except StopIteration: raise
# INPUT
if out is None:
if addr in waiting:
pass
elif not inputs.get(addr, None):
waiting.append(addr)
continue
# OUTPUT
idle_start = None
outputs.setdefault(addr, []).append(out)
if len(outputs[addr]) < 3: continue
# packet ready to be sent
out1, out2, out3 = outputs[addr]
outputs[addr].clear()
if out1 < nbcomputers:
inputs.setdefault(out1, []).append(out2)
inputs.setdefault(out1, []).append(out3)
if out1 in waiting: waiting.remove(out1)
elif out1 == 255:
inputs[255] = [out2, out3]
else: assert 0
#
if len(waiting) != nbcomputers:
idle_start = None
elif not idle_start:
idle_start = n
elif (n - idle_start) >= 5:
out1, out2, out3 = 0, *inputs[255]
print(f'# IDLE {out3=}')
if out3 == last_y: return
last_y = out3
inputs.setdefault(out1, []).append(out2)
inputs.setdefault(out1, []).append(out3)
inputs[255].clear()
idle_start = None
else: pass
# ###########################################################################
#
# 2019 DAY 22
#
# ###########################################################################
input221 = """
deal with increment 7
deal into new stack
deal into new stack
""" # 0 3 6 9 2 5 8 1 4 7
input222 = """
cut 6
deal with increment 7
deal into new stack
""" # 3 0 7 4 1 8 5 2 9 6
input223 = """
deal with increment 7
deal with increment 9
cut -2
""" # 6 3 0 7 4 1 8 5 2 9
input224 = """
deal into new stack
cut -2
deal with increment 7
cut 8
cut -4
deal with increment 7
cut 3
deal with increment 9
deal with increment 3
cut -1
""" # 9 2 5 8 1 4 7 0 3 6
# 2939
def d19221(input=None, forder=10007, tcard=2019):
input = input or open('inputs/1922.in').read()
input = map(lambda l: l.split(), input.strip().splitlines())
for w in input:
if w[1] == 'into': # deal into new stack
tcard = forder - tcard - 1
print(f'> stk {tcard=}')
elif w[0] == 'cut': # cut N
tcard = (tcard - int(w[1])) % forder
print(f'> cut {tcard=}')
elif w[1] == 'with': # deal with increment N
tcard = (tcard * int(w[3])) % forder
print(f'> inc {tcard=}')
else: assert 0
print(f'{tcard=}')
# deal into new stack
# fx = -1.x -1
# cut N
# fx = x - N
# deal with increment N
# fx = N.x
# shuff(0) = 4240
# shuff(1) = 8601
# shuff(x) = (4361 x + 4240) % forder
# 45347150615590
def d19222(input=None, forder=119315717514047, tcard=2020, repeat=101741582076661):
input = input or open('inputs/1922.in').read()
input = list(map(lambda l: l.split(), input.strip().splitlines()))
A, B = 1, 0
for w in input:
if w[1] == 'into': # (inv of) deal into new stack
A = (A * -1) % forder
B = (B + A) % forder
elif w[0] == 'cut': # inv of cut N
B = (B + A * int(w[1])) % forder
elif w[1] == 'with': # inf of deal with increment N
A = (A * pow(int(w[3]), forder - 2, forder)) % forder
# mod inverse on primes
else: assert 0
print(f'{A=} {B=}')
# so for inverting one shuffle : x = (Ay + B) % forder
# then for inverting n shuffle:
bigA = pow(A, repeat, forder) % forder
bigB = B * (1 - bigA) * pow(1 - A, forder-2, forder) % forder
print(f'{bigA=} {bigB=}')
print(f'> res = {(bigA * tcard + bigB) % forder}')
# XXX https://old.reddit.com/r/adventofcode/comments/ee0rqi/2019_day_22_solutions/fbnkaju
# ###########################################################################
#
# 2019 DAY 21
#
# ###########################################################################
# !(A && B && C) && D
# (!A || !B || !C) && D
# NOT A T
# NOT B J
# OR J T
# NOT C J
# OR T J
# AND D J
# 19350375
def d19211(input=None):
input = input or open('inputs/1921.in').read()
input = list(map(int, input.strip().split(',')))
input = collections.defaultdict(int, enumerate(input))
def inputl():
prog = ['NOT A T', 'NOT B J', 'OR J T', 'NOT C J', 'OR T J', 'AND D J']
yield from map(ord, '\n'.join(prog + ['WALK', '']))
generator = processIC13(input, inputl().__next__, False)
for n in itertools.count():
try: out = next(generator)
except StopIteration: break
print(chr(out) if (out < 256) else '', end='')
print('>', out)
# 1 2 3 4 5 6 7 8 9
# A B C D E F G H I
# ? ? ? # . # # . #
# (!A || !B || !C) && D && (E || H)
# NOT E T
# NOT T T
# OR H T
# AND T J
# 1143990055
def d19212(input=None):
input = input or open('inputs/1921.in').read()
input = list(map(int, input.strip().split(',')))
input = collections.defaultdict(int, enumerate(input))
def inputl():
prog = ['NOT A T', 'NOT B J', 'OR J T', 'NOT C J', 'OR T J', 'AND D J',
'NOT E T', 'NOT T T', 'OR H T', 'AND T J']
yield from map(ord, '\n'.join(prog + ['RUN', '']))
generator = processIC13(input, inputl().__next__, False)
for n in itertools.count():
try: out = next(generator)
except StopIteration: break
print(chr(out) if (out < 256) else '', end='')
print('>', out)
# ###########################################################################
#
# 2019 DAY 20
#
# ###########################################################################
# 23 steps (26 wo portals)
input201 = """
A
A
#######.#########
#######.........#
#######.#######.#
#######.#######.#
#######.#######.#
##### B ###.#
BC...## C ###.#
##.## ###.#
##...DE F ###.#
##### G ###.#
#########.#####.#
DE..#######...###.#
#.#########.###.#
FG..#########.....#
###########.#####
Z
Z
"""
# 570
def d19201(input=None):
input = input or open('inputs/1920.in').read()
input = input.strip('\n').splitlines()
maze = dict([((x, y), c) for (y, l) in enumerate(input) for (
x, c) in enumerate(l)])
# portals
max_x = max(map(operator.itemgetter(0), maze.keys()))
max_y = max(map(operator.itemgetter(1), maze.keys()))
prtmp, portals = {}, {}
for y in range(max_y + 1):
for x in range(max_x + 1):
if not ((l1 := maze.get((x, y), '')).isalpha()):
continue
l2 = c = None
if ((l2 := maze.get((x + 1, y), '')).isalpha()):
if maze.get((x + 2, y), None) == '.': c = (x + 2, y)
elif maze.get((x - 1, y), None) == '.': c = (x - 1, y)
elif ((l2 := maze.get((x, y + 1), '')).isalpha()):
if maze.get((x, y + 2), None) == '.': c = (x, y + 2)
elif maze.get((x, y - 1), None) == '.': c = (x, y - 1)
if not l2 or not c: continue
prtmp.setdefault(l1 + l2, []).append(c)
for (prid, lst) in prtmp.items():
el1 = prid if (prid in ['AA', 'ZZ']) else lst[1]
portals[lst[0]] = el1
portals[el1] = lst[0]
# bfs
to_visit, visited = [(portals['AA'], 0)], []
while to_visit:
((x, y), d) = to_visit.pop(0)
visited.append((x, y))
for nxt in [(x + 1, y), (x, y + 1), (x - 1, y), (x, y - 1)]:
if nxt in visited: continue
val = maze.get(nxt, None)
if val == '#': continue
if val != '.': continue
out = portals.get(nxt, None)
if out == 'ZZ':
print(f'>>> res={d+1}'); return
elif out:
to_visit.append(((*out,), d + 2))
else:
to_visit.append(((*nxt,), d + 1))
# 396 steps
input202 = """
Z L X W C
Z P Q B K
###########.#.#.#.#######.###############
#...#.......#.#.......#.#.......#.#.#...#
###.#.#.#.#.#.#.#.###.#.#.#######.#.#.###
#.#...#.#.#...#.#.#...#...#...#.#.......#
#.###.#######.###.###.#.###.###.#.#######
#...#.......#.#...#...#.............#...#
#.#########.#######.#.#######.#######.###
#...#.# F R I Z #.#.#.#
#.###.# D E C H #.#.#.#
#.#...# #...#.#
#.###.# #.###.#
#.#....OA WB..#.#..ZH
#.###.# #.#.#.#
CJ......# #.....#
####### #######
#.#....CK #......IC
#.###.# #.###.#
#.....# #...#.#
###.### #.#.#.#
XF....#.# RF..#.#.#
#####.# #######
#......CJ NM..#...#
###.#.# #.###.#
RE....#.# #......RF
###.### X X L #.#.#.#
#.....# F Q P #.#.#.#
###.###########.###.#######.#########.###
#.....#...#.....#.......#...#.....#.#...#
#####.#.###.#######.#######.###.###.#.#.#
#.......#.......#.#.#.#.#...#...#...#.#.#
#####.###.#####.#.#.#.#.###.###.#.###.###
#.......#.....#.#...#...............#...#
#############.#.#.###.###################
A O F N
A A D M
"""
# 7056
def d19202(input=None):
input = input or open('inputs/1920.in').read()
input = input.strip('\n').splitlines()
maze = dict([((x, y), c) for (y, l) in enumerate(input) for (
x, c) in enumerate(l)])
# portals
max_x = max(map(operator.itemgetter(0), maze.keys()))
max_y = max(map(operator.itemgetter(1), maze.keys()))
prtmp, outprt, inprt = {}, {}, {}
for y in range(max_y + 1):
for x in range(max_x + 1):
if not ((l1 := maze.get((x, y), '')).isalpha()):
continue
l2 = c = None
if ((l2 := maze.get((x + 1, y), '')).isalpha()):
if maze.get((x + 2, y), None) == '.': c = (x + 2, y)
elif maze.get((x - 1, y), None) == '.': c = (x - 1, y)
elif ((l2 := maze.get((x, y + 1), '')).isalpha()):
if maze.get((x, y + 2), None) == '.': c = (x, y + 2)
elif maze.get((x, y - 1), None) == '.': c = (x, y - 1)
if not l2 or not c: continue
prtmp.setdefault(l1 + l2, []).append(c)
for (prid, lst) in prtmp.items():
if prid in ['AA', 'ZZ']:
outprt[prid] = lst[0]
outprt[lst[0]] = prid
continue
if (2 < lst[0][0] < max_x - 2) and (2 < lst[0][1] < max_y - 2):
inprt[lst[0]] = lst[1]
else:
outprt[lst[0]] = lst[1]
if (2 < lst[1][0] < max_x - 2) and (2 < lst[1][1] < max_y - 2):
inprt[lst[1]] = lst[0]
else:
outprt[lst[1]] = lst[0]
# print maze
for y in range(max_y + 1):
for x in range(max_x + 1):
if (x, y) in outprt: print('O', end='')
elif (x, y) in inprt: print('I', end='')
else: print(maze.get((x, y), ' '), end='')
print()
#
@functools.lru_cache(maxsize=None)
def avpex(x, y, lzero):
visited, tovisit, exts = set([]), [(x, y, 0)], []
while True:
(x, y, d) = tovisit.pop(0)
for (nx, ny) in [(x - 1, y), (x + 1, y), (x, y - 1), (x, y + 1)]:
if (nx, ny) in visited: continue
value = maze.get((nx, ny), None)
if value == '#': continue
if value != '.': continue
out = outprt.get((nx, ny), None)
if out == 'ZZ':
if lzero: exts.append((nx, ny, d + 1, 0))
elif out == 'AA':
pass # always blocked
elif out:
if not lzero: exts.append((*out, d + 2, -1))
elif inr := inprt.get((nx, ny), None):
exts.append((*inr, d + 2, 1))
else:
tovisit.append((nx, ny, d + 1))
visited.add((x, y))
if not tovisit: break
return exts
#
tovisit, visited = [(outprt['AA'], 0, 0)], []
while tovisit:
((x, y), d, l) = tovisit.pop(0)
for (nx, ny, dd, dl) in avpex(x, y, not l):
out = outprt.get((nx, ny), None)
if out == 'ZZ': print('XXX', d + dd); return
tovisit.append(((nx, ny), d + dd, l + dl))
# ###########################################################################
#
# 2019 DAY 19
#
# ###########################################################################
def print_grid(grid):
max_x = max(map(operator.itemgetter(0), grid.keys()))
max_y = max(map(operator.itemgetter(1), grid.keys()))
for y in range(max_y + 1):
vs = []
for x in range(max_x + 1):
v = grid.get((x, y), 0)
vs.append(v)
print(v and '#' or '.', end='')
if y >= 2: print(y, vs.index(1), vs.index(1) + vs.count(1), vs.count(1) )
else: print()
print()
# 199
def d19191(input=None):
input = input or open('inputs/1919.in').read()
input = list(map(int, input.strip().split(',')))
grid = {}
for y in range(0, 50):
for x in range(0, 50):
inputl = [x, y]
def inputf(): return inputl.pop(0)
generator = processIC13(
collections.defaultdict(int, enumerate(input)), inputf, False)
try: out1 = next(generator)
except StopIteration: break
grid[(x, y)] = out1
print_grid(grid)
print(len(list(filter(lambda x: x == 1, grid.values()))))
def d19192(input=None):
input = input or open('inputs/1919.in').read()
input = list(map(int, input.strip().split(',')))
def compv(x, y, dbg=False):
def inputf(): yield from [x, y]
generator = processIC13(
collections.defaultdict(
int, enumerate(input)), inputf().__next__, dbg)
return next(generator)
(x, y) = (3, 2)
while True:
print(f'{x=} {y=}')
if not compv(x, y):
x += 1
elif not compv(x + 99, y):
y += 1
elif not compv(x, y + 99):
x += 1
else:
break
print(f'res = {x*10000+y}')
# (x, y) in beam
# (x + 99, y) in beam
# (x, y + 99) in beam
#
# ...#################.......
# ....########XOOOOOOOOX.....
# .....#######OOOOOOOOOO#....
# ......######OOOOOOOOOO###..
# .......#####OOOOOOOOOO#####
# ........####OOOOOOOOOO#####
# ........####OOOOOOOOOO#####
# .........###OOOOOOOOOO#####
# ..........##OOOOOOOOOO#####
# ...........#OOOOOOOOOO#####
# ............XOOOOOOOOO#####
# ###########################################################################
#
# 2019 DAY 18
#
# ###########################################################################
# 86 steps (a, b, c, d, e, f)
input182 = """
########################
######################.#
#d.....................#
########################
"""
# 132 steps (b, a, c, d, f, e, g)
input183 = """
########################
#...............b.C.D.f#
#.######################
########################
"""
# 136 steps (a, f, b, j, g, n, h, d, l, o, e, p, c, i, k, m)
input184 = """
#################
#i.G..c...e..H.p#
########.########
#j.A..b...f..D.o#
########@########
#k.E..a...g..B.n#
########.########
#l.F..d...h..C.m#
#################
"""
# 81 steps ( a, c, f, i, d, g, b, e, h )
input185 = """
########################
#@..............ac.GI.b#
###d#e#f################
###A#B#C################
###g#h#i################
########################
"""
# 8 steps (a, b)
input181 = """
#########
#########
"""
# 6286
def d19181(input=None):
input = input or open('inputs/1918.in').read()
input = list(
filter(bool, map(lambda l: l.strip(), input.splitlines())))
area = dict([((x, y), c) for (y, l) in enumerate(input) for (x, c) in enumerate(l)])
x, y = list(filter(lambda k_v: k_v[1] == '@', area.items()))[0][0]
missing = ''.join(sorted(map(lambda p_k: p_k[1], filter(lambda k_v: k_v[1].islower(), area.items()))))
gates = dict(list(map(lambda p_k: (p_k[1], p_k[0]), filter(lambda k_v: k_v[1].isupper(), area.items()))))
area.update({(x, y): '.'})
@functools.lru_cache(maxsize=None)
def avkeys(missing, x, y): # bfs
visited, tovisit, keys = set([]), [(x, y, 0)], []
while True:
(x, y, d) = tovisit.pop(0)
for (nx, ny) in [(x - 1, y), (x + 1, y), (x, y - 1), (x, y + 1)]:
if (nx, ny) in visited: continue
value = area[(nx, ny)]
if value == '.':
tovisit.append((nx, ny, d + 1))
elif value.isupper():
if value.lower() not in missing:
tovisit.append((nx, ny, d + 1))
else: pass # blocked
elif value.islower():
if value in missing:
keys.append((value, nx, ny, d + 1))
else:
tovisit.append((nx, ny, d + 1))
else: pass # blocked
visited.add((x, y))
if not tovisit: break
return keys
@functools.lru_cache(maxsize=None)
def trypath(missing, x, y, d):
result = None
for (k, kx, ky, kd) in avkeys(missing, x, y):
kidx = missing.index(k)
nmissing = missing[:kidx] + missing[kidx+1:]
res = (d + kd if not nmissing else
trypath(nmissing, kx, ky, d + kd))
result = result and min(res, result) or res
return result
print(trypath(missing, x, y, 0))
# 8 steps
input186 = """
#######
#a.#Cd#
##...##
##.@.##
##...##
#cB#Ab#