2015 day 4, 5, 6, 7.

src/holt59/aoc/2015/day2.py

@@ -4,12 +4,17 @@ import numpy as np
 
 lines = sys.stdin.read().splitlines()
 
-l, w, h = np.array([[int(c) for c in line.split("x")] for line in lines]).T
+length, width, height = np.array(
+    [[int(c) for c in line.split("x")] for line in lines]
+).T
 
-lw, wh, hl = (l * w, w * h, h * l)
+lw, wh, hl = (length * width, width * height, height * length)
 
 answer_1 = np.sum(2 * (lw + wh + hl) + np.min(np.stack([lw, wh, hl]), axis=0))
 print(f"answer 1 is {answer_1}")
 
-answer_2 = np.sum(l * w * h + 2 * np.min(np.stack([l + w, l + h, h + w]), axis=0))
+answer_2 = np.sum(
+    length * width * height
+    + 2 * np.min(np.stack([length + width, length + height, height + width]), axis=0)
+)
 print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day4.py

@@ -0,0 +1,16 @@
+import hashlib
+import itertools
+import sys
+
+line = sys.stdin.read().strip()
+
+it = iter(itertools.count(1))
+answer_1 = next(
+    i for i in it if hashlib.md5(f"{line}{i}".encode()).hexdigest().startswith("00000")
+)
+print(f"answer 1 is {answer_1}")
+
+answer_2 = next(
+    i for i in it if hashlib.md5(f"{line}{i}".encode()).hexdigest().startswith("000000")
+)
+print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day5.py

@@ -0,0 +1,36 @@
+import sys
+
+VOWELS = "aeiou"
+FORBIDDEN = {"ab", "cd", "pq", "xy"}
+
+
+def is_nice_1(s: str) -> bool:
+    if sum(c in VOWELS for c in s) < 3:
+        return False
+
+    if not any(a == b for a, b in zip(s[:-1:], s[1::])):
+        return False
+
+    if any(s.find(f) >= 0 for f in FORBIDDEN):
+        return False
+
+    return True
+
+
+def is_nice_2(s: str) -> bool:
+    if not any(s.find(s[i : i + 2], i + 2) >= 0 for i in range(len(s))):
+        return False
+
+    if not any(a == b for a, b in zip(s[:-1:], s[2::])):
+        return False
+
+    return True
+
+
+lines = sys.stdin.read().splitlines()
+
+answer_1 = sum(map(is_nice_1, lines))
+print(f"answer 1 is {answer_1}")
+
+answer_2 = sum(map(is_nice_2, lines))
+print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day6.py

@@ -0,0 +1,33 @@
+import sys
+from typing import Literal, cast
+
+import numpy as np
+import parse  # type: ignore
+
+lines = sys.stdin.read().splitlines()
+
+lights_1 = np.zeros((1000, 1000), dtype=bool)
+lights_2 = np.zeros((1000, 1000), dtype=int)
+for line in lines:
+    action, sx, sy, ex, ey = cast(
+        tuple[Literal["turn on", "turn off", "toggle"], int, int, int, int],
+        parse.parse("{} {:d},{:d} through {:d},{:d}", line),  # type: ignore
+    )
+    ex, ey = ex + 1, ey + 1
+
+    match action:
+        case "turn on":
+            lights_1[sx:ex, sy:ey] = True
+            lights_2[sx:ex, sy:ey] += 1
+        case "turn off":
+            lights_1[sx:ex, sy:ey] = False
+            lights_2[sx:ex, sy:ey] = np.maximum(lights_2[sx:ex, sy:ey] - 1, 0)
+        case "toggle":
+            lights_1[sx:ex, sy:ey] = ~lights_1[sx:ex, sy:ey]
+            lights_2[sx:ex, sy:ey] += 2
+
+answer_1 = lights_1.sum()
+print(f"answer 1 is {answer_1}")
+
+answer_2 = lights_2.sum()
+print(f"answer 2 is {answer_2}")

src/holt59/aoc/2015/day7.py

@@ -0,0 +1,101 @@
+import logging
+import operator
+import os
+import sys
+from typing import Callable, Literal, TypeAlias, cast
+
+VERBOSE = os.getenv("AOC_VERBOSE") == "True"
+logging.basicConfig(level=logging.INFO if VERBOSE else logging.WARNING)
+
+OPERATORS = {
+    "AND": operator.and_,
+    "OR": operator.or_,
+    "LSHIFT": operator.lshift,
+    "RSHIFT": operator.rshift,
+}
+
+ValueGetter = Callable[[dict[str, int]], int]
+Signals = dict[
+    str,
+    tuple[
+        tuple[str, str],
+        tuple[ValueGetter, ValueGetter],
+        Callable[[int, int], int],
+    ],
+]
+
+
+def zero_op(_a: int, _b: int) -> int:
+    return 0
+
+
+def value_of(key: str) -> tuple[str, Callable[[dict[str, int]], int]]:
+    try:
+        return "", lambda _p, _v=int(key): _v
+    except ValueError:
+        return key, lambda values: values[key]
+
+
+lines = sys.stdin.read().splitlines()
+
+signals: Signals = {}
+values: dict[str, int] = {"": 0}
+
+for line in lines:
+    command, signal = line.split(" -> ")
+
+    if command.startswith("NOT"):
+        name = command.split(" ")[1]
+        signals[signal] = (
+            (name, ""),
+            (lambda values, _n=name: values[_n], lambda _v: 0),
+            lambda a, _b: ~a,
+        )
+
+    elif not any(command.find(name) >= 0 for name in OPERATORS):
+        try:
+            values[signal] = int(command)
+        except ValueError:
+            signals[signal] = (
+                (command, ""),
+                (lambda values, _c=command: values[_c], lambda _v: 0),
+                lambda a, _b: a,
+            )
+
+    else:
+        op: Callable[[int, int], int] = zero_op
+        lhs_s, rhs_s = "", ""
+
+        for name in OPERATORS:
+            if command.find(name) >= 0:
+                op = OPERATORS[name]
+                lhs_s, rhs_s = command.split(f" {name} ")
+                break
+
+        lhs_s, lhs_fn = value_of(lhs_s)
+        rhs_s, rhs_fn = value_of(rhs_s)
+
+        signals[signal] = ((lhs_s, rhs_s), (lhs_fn, rhs_fn), op)
+
+
+def process(
+    signals: Signals,
+    values: dict[str, int],
+) -> dict[str, int]:
+    while signals:
+        signal = next(s for s in signals if all(p in values for p in signals[s][0]))
+        _, deps, command = signals[signal]
+        values[signal] = command(deps[0](values), deps[1](values)) % 65536
+        del signals[signal]
+
+    return values
+
+
+values_1 = process(signals.copy(), values.copy())
+logging.info("\n" + "\n".join(f"{k}: {values_1[k]}" for k in sorted(values_1)))
+answer_1 = values_1["a"]
+print(f"answer 1 is {answer_1}")
+
+values_2 = process(signals.copy(), values | {"b": values_1["a"]})
+answer_2 = values_2["a"]
+print(f"answer 2 is {answer_2}")

src/holt59/aoc/inputs/holt59/2015/day4.txt

@@ -0,0 +1 @@
+ckczppom

src/holt59/aoc/inputs/holt59/2015/day6.txt

@@ -0,0 +1,300 @@
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src/holt59/aoc/inputs/holt59/2015/day7.txt

@@ -0,0 +1,339 @@
+bn RSHIFT 2 -> bo
+lf RSHIFT 1 -> ly
+fo RSHIFT 3 -> fq
+cj OR cp -> cq
+fo OR fz -> ga
+t OR s -> u
+lx -> a
+NOT ax -> ay
+he RSHIFT 2 -> hf
+lf OR lq -> lr
+lr AND lt -> lu
+dy OR ej -> ek
+1 AND cx -> cy
+hb LSHIFT 1 -> hv
+1 AND bh -> bi
+ih AND ij -> ik
+c LSHIFT 1 -> t
+ea AND eb -> ed
+km OR kn -> ko
+NOT bw -> bx
+ci OR ct -> cu
+NOT p -> q
+lw OR lv -> lx
+NOT lo -> lp
+fp OR fv -> fw
+o AND q -> r
+dh AND dj -> dk
+ap LSHIFT 1 -> bj
+bk LSHIFT 1 -> ce
+NOT ii -> ij
+gh OR gi -> gj
+kk RSHIFT 1 -> ld
+lc LSHIFT 1 -> lw
+lb OR la -> lc
+1 AND am -> an
+gn AND gp -> gq
+lf RSHIFT 3 -> lh
+e OR f -> g
+lg AND lm -> lo
+ci RSHIFT 1 -> db
+cf LSHIFT 1 -> cz
+bn RSHIFT 1 -> cg
+et AND fe -> fg
+is OR it -> iu
+kw AND ky -> kz
+ck AND cl -> cn
+bj OR bi -> bk
+gj RSHIFT 1 -> hc
+iu AND jf -> jh
+NOT bs -> bt
+kk OR kv -> kw
+ks AND ku -> kv
+hz OR ik -> il
+b RSHIFT 1 -> v
+iu RSHIFT 1 -> jn
+fo RSHIFT 5 -> fr
+be AND bg -> bh
+ga AND gc -> gd
+hf OR hl -> hm
+ld OR le -> lf
+as RSHIFT 5 -> av
+fm OR fn -> fo
+hm AND ho -> hp
+lg OR lm -> ln
+NOT kx -> ky
+kk RSHIFT 3 -> km
+ek AND em -> en
+NOT ft -> fu
+NOT jh -> ji
+jn OR jo -> jp
+gj AND gu -> gw
+d AND j -> l
+et RSHIFT 1 -> fm
+jq OR jw -> jx
+ep OR eo -> eq
+lv LSHIFT 15 -> lz
+NOT ey -> ez
+jp RSHIFT 2 -> jq
+eg AND ei -> ej
+NOT dm -> dn
+jp AND ka -> kc
+as AND bd -> bf
+fk OR fj -> fl
+dw OR dx -> dy
+lj AND ll -> lm
+ec AND ee -> ef
+fq AND fr -> ft
+NOT kp -> kq
+ki OR kj -> kk
+cz OR cy -> da
+as RSHIFT 3 -> au
+an LSHIFT 15 -> ar
+fj LSHIFT 15 -> fn
+1 AND fi -> fj
+he RSHIFT 1 -> hx
+lf RSHIFT 2 -> lg
+kf LSHIFT 15 -> kj
+dz AND ef -> eh
+ib OR ic -> id
+lf RSHIFT 5 -> li
+bp OR bq -> br
+NOT gs -> gt
+fo RSHIFT 1 -> gh
+bz AND cb -> cc
+ea OR eb -> ec
+lf AND lq -> ls
+NOT l -> m
+hz RSHIFT 3 -> ib
+NOT di -> dj
+NOT lk -> ll
+jp RSHIFT 3 -> jr
+jp RSHIFT 5 -> js
+NOT bf -> bg
+s LSHIFT 15 -> w
+eq LSHIFT 1 -> fk
+jl OR jk -> jm
+hz AND ik -> im
+dz OR ef -> eg
+1 AND gy -> gz
+la LSHIFT 15 -> le
+br AND bt -> bu
+NOT cn -> co
+v OR w -> x
+d OR j -> k
+1 AND gd -> ge
+ia OR ig -> ih
+NOT go -> gp
+NOT ed -> ee
+jq AND jw -> jy
+et OR fe -> ff
+aw AND ay -> az
+ff AND fh -> fi
+ir LSHIFT 1 -> jl
+gg LSHIFT 1 -> ha
+x RSHIFT 2 -> y
+db OR dc -> dd
+bl OR bm -> bn
+ib AND ic -> ie
+x RSHIFT 3 -> z
+lh AND li -> lk
+ce OR cd -> cf
+NOT bb -> bc
+hi AND hk -> hl
+NOT gb -> gc
+1 AND r -> s
+fw AND fy -> fz
+fb AND fd -> fe
+1 AND en -> eo
+z OR aa -> ab
+bi LSHIFT 15 -> bm
+hg OR hh -> hi
+kh LSHIFT 1 -> lb
+cg OR ch -> ci
+1 AND kz -> la
+gf OR ge -> gg
+gj RSHIFT 2 -> gk
+dd RSHIFT 2 -> de
+NOT ls -> lt
+lh OR li -> lj
+jr OR js -> jt
+au AND av -> ax
+0 -> c
+he AND hp -> hr
+id AND if -> ig
+et RSHIFT 5 -> ew
+bp AND bq -> bs
+e AND f -> h
+ly OR lz -> ma
+1 AND lu -> lv
+NOT jd -> je
+ha OR gz -> hb
+dy RSHIFT 1 -> er
+iu RSHIFT 2 -> iv
+NOT hr -> hs
+as RSHIFT 1 -> bl
+kk RSHIFT 2 -> kl
+b AND n -> p
+ln AND lp -> lq
+cj AND cp -> cr
+dl AND dn -> do
+ci RSHIFT 2 -> cj
+as OR bd -> be
+ge LSHIFT 15 -> gi
+hz RSHIFT 5 -> ic
+dv LSHIFT 1 -> ep
+kl OR kr -> ks
+gj OR gu -> gv
+he RSHIFT 5 -> hh
+NOT fg -> fh
+hg AND hh -> hj
+b OR n -> o
+jk LSHIFT 15 -> jo
+gz LSHIFT 15 -> hd
+cy LSHIFT 15 -> dc
+kk RSHIFT 5 -> kn
+ci RSHIFT 3 -> ck
+at OR az -> ba
+iu RSHIFT 3 -> iw
+ko AND kq -> kr
+NOT eh -> ei
+aq OR ar -> as
+iy AND ja -> jb
+dd RSHIFT 3 -> df
+bn RSHIFT 3 -> bp
+1 AND cc -> cd
+at AND az -> bb
+x OR ai -> aj
+kk AND kv -> kx
+ao OR an -> ap
+dy RSHIFT 3 -> ea
+x RSHIFT 1 -> aq
+eu AND fa -> fc
+kl AND kr -> kt
+ia AND ig -> ii
+df AND dg -> di
+NOT fx -> fy
+k AND m -> n
+bn RSHIFT 5 -> bq
+km AND kn -> kp
+dt LSHIFT 15 -> dx
+hz RSHIFT 2 -> ia
+aj AND al -> am
+cd LSHIFT 15 -> ch
+hc OR hd -> he
+he RSHIFT 3 -> hg
+bn OR by -> bz
+NOT kt -> ku
+z AND aa -> ac
+NOT ak -> al
+cu AND cw -> cx
+NOT ie -> if
+dy RSHIFT 2 -> dz
+ip LSHIFT 15 -> it
+de OR dk -> dl
+au OR av -> aw
+jg AND ji -> jj
+ci AND ct -> cv
+dy RSHIFT 5 -> eb
+hx OR hy -> hz
+eu OR fa -> fb
+gj RSHIFT 3 -> gl
+fo AND fz -> gb
+1 AND jj -> jk
+jp OR ka -> kb
+de AND dk -> dm
+ex AND ez -> fa
+df OR dg -> dh
+iv OR jb -> jc
+x RSHIFT 5 -> aa
+NOT hj -> hk
+NOT im -> in
+fl LSHIFT 1 -> gf
+hu LSHIFT 15 -> hy
+iq OR ip -> ir
+iu RSHIFT 5 -> ix
+NOT fc -> fd
+NOT el -> em
+ck OR cl -> cm
+et RSHIFT 3 -> ev
+hw LSHIFT 1 -> iq
+ci RSHIFT 5 -> cl
+iv AND jb -> jd
+dd RSHIFT 5 -> dg
+as RSHIFT 2 -> at
+NOT jy -> jz
+af AND ah -> ai
+1 AND ds -> dt
+jx AND jz -> ka
+da LSHIFT 1 -> du
+fs AND fu -> fv
+jp RSHIFT 1 -> ki
+iw AND ix -> iz
+iw OR ix -> iy
+eo LSHIFT 15 -> es
+ev AND ew -> ey
+ba AND bc -> bd
+fp AND fv -> fx
+jc AND je -> jf
+et RSHIFT 2 -> eu
+kg OR kf -> kh
+iu OR jf -> jg
+er OR es -> et
+fo RSHIFT 2 -> fp
+NOT ca -> cb
+bv AND bx -> by
+u LSHIFT 1 -> ao
+cm AND co -> cp
+y OR ae -> af
+bn AND by -> ca
+1 AND ke -> kf
+jt AND jv -> jw
+fq OR fr -> fs
+dy AND ej -> el
+NOT kc -> kd
+ev OR ew -> ex
+dd OR do -> dp
+NOT cv -> cw
+gr AND gt -> gu
+dd RSHIFT 1 -> dw
+NOT gw -> gx
+NOT iz -> ja
+1 AND io -> ip
+NOT ag -> ah
+b RSHIFT 5 -> f
+NOT cr -> cs
+kb AND kd -> ke
+jr AND js -> ju
+cq AND cs -> ct
+il AND in -> io
+NOT ju -> jv
+du OR dt -> dv
+dd AND do -> dq
+b RSHIFT 2 -> d
+jm LSHIFT 1 -> kg
+NOT dq -> dr
+bo OR bu -> bv
+gk OR gq -> gr
+he OR hp -> hq
+NOT h -> i
+hf AND hl -> hn
+gv AND gx -> gy
+x AND ai -> ak
+bo AND bu -> bw
+hq AND hs -> ht
+hz RSHIFT 1 -> is
+gj RSHIFT 5 -> gm
+g AND i -> j
+gk AND gq -> gs
+dp AND dr -> ds
+b RSHIFT 3 -> e
+gl AND gm -> go
+gl OR gm -> gn
+y AND ae -> ag
+hv OR hu -> hw
+1674 -> b
+ab AND ad -> ae
+NOT ac -> ad
+1 AND ht -> hu
+NOT hn -> ho

src/holt59/aoc/inputs/tests/2015/day5.txt

@@ -0,0 +1,5 @@
+ugknbfddgicrmopn
+aaa
+jchzalrnumimnmhp
+haegwjzuvuyypxyu
+dvszwmarrgswjxmb

src/holt59/aoc/inputs/tests/2015/day6.txt

@@ -0,0 +1,3 @@
+turn on 0,0 through 999,999
+toggle 0,0 through 999,0
+turn off 499,499 through 500,500

src/holt59/aoc/inputs/tests/2015/day7.txt

@@ -0,0 +1,8 @@
+123 -> x
+456 -> y
+x AND y -> d
+x OR y -> e
+x LSHIFT 2 -> f
+y RSHIFT 2 -> g
+NOT x -> h
+NOT y -> i