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387275 777983 1515058 2854764 5207255 +7 15 23 32 43 57 75 98 127 163 207 260 323 397 483 582 695 823 967 1128 1307 +19 23 34 70 165 377 810 1663 3315 6450 12236 22625 40977 73482 132324 242276 453523 865081 1665326 3198992 6073677 +22 47 78 115 167 257 422 712 1200 2027 3541 6681 13955 31726 75129 177921 411197 917897 1976121 4117455 8355354 +-2 12 43 98 201 409 835 1692 3381 6655 12900 24583 45926 83874 149434 259471 439056 724470 1166977 1837488 2832247 +21 31 54 100 180 303 467 654 855 1176 2114 5147 13858 35914 86351 192779 403321 798341 1507302 2732430 4781248 +1 10 32 71 137 257 491 959 1894 3745 7363 14312 27356 51182 93428 166094 287423 484348 795610 1275661 1999475 +22 28 37 53 80 122 183 267 378 520 697 913 1172 1478 1835 2247 2718 3252 3853 4525 5272 +14 25 30 30 28 39 108 345 1005 2676 6703 16099 37423 84516 185710 397426 829545 1692920 3389905 6691225 13089923 +24 47 79 126 211 380 708 1305 2322 3957 6461 10144 15381 22618 32378 45267 61980 83307 110139 143474 184423 +27 50 95 181 333 582 965 1525 2311 3378 4787 6605 8905 11766 15273 19517 24595 30610 37671 45893 55397 +4 4 6 25 95 289 755 1774 3854 7899 15559 30028 57906 113430 227640 467231 971500 2021814 4167860 8450995 16791197 +16 33 60 110 207 403 802 1595 3128 6050 11619 22291 42812 82254 157962 303601 586212 1142943 2259690 4536000 9220961 +-1 -1 11 54 149 323 634 1243 2578 5657 12672 28006 59994 123993 247753 480751 910145 1687419 3071729 5498542 9685515 diff --git a/2023/python/day09.py b/2023/python/day09.py new file mode 100644 index 0000000..9298281 --- /dev/null +++ b/2023/python/day09.py @@ -0,0 +1,88 @@ +import shared + +def get_sequence(values): + differences = [] + for idx in range(len(values)-1): + x1, x2 = values[idx:idx+2] + differences.append(x2 - x1) + return differences + +def print_pretty(history): + for idx, h in enumerate(history): + print((" " * idx) + " ".join(map(str, h))) + +def calculate_new_value(row1, row2): + print(row1, row2) + + +# @shared.profile +def part1(rows): + # gather + history = [[shared.spl(row.split())] for row in rows] + for h in history: + vals = h[0] + while True: + vals = get_sequence(vals) + h.append(vals) + if shared.all_equal(vals) and vals[0] == 0: + break + # do calcs + for h in history: + h[-1].append(0) + for idx in range(1, len(h)): + i = (idx * -1) -1 + me = h[i] + above = h[i+1] + #print(above,me) + new_val = me[-1] + above[-1] + h[i].append(new_val) + + # totals + newest = [x[0][-1] for x in history] + print(sum(newest)) + + + + +# @shared.profile +def part2(rows): + # gather + history = [[shared.spl(row.split())] for row in rows] + for h in history: + vals = h[0] + while True: + vals = get_sequence(vals) + h.append(vals) + if shared.all_equal(vals) and vals[0] == 0: + break + # do calcs + for h in history: + h[-1].insert(0, 0) + for idx in range(1, len(h)): + i = (idx * -1) -1 + me = h[i] + below = h[i+1] + new_val = me[0] - below[0] + + h[i].insert(0, new_val) + # totals + newest = [x[0][0] for x in history] + print(sum(newest)) + + + + +def main(): + rows = [row for row in shared.load_rows(9)] + with shared.elapsed_timer() as elapsed: + part1(rows) + print("🕒", elapsed()) + + rows = [row for row in shared.load_rows(9, True)] + with shared.elapsed_timer() as elapsed: + part2(rows) + print("🕒", elapsed()) + + +if __name__ == "__main__": + main() diff --git a/2023/python/shared.py b/2023/python/shared.py index 81cc486..470c2a3 100644 --- a/2023/python/shared.py +++ b/2023/python/shared.py @@ -4,6 +4,11 @@ from pathlib import Path import cProfile import functools import pstats +from itertools import groupby + +def all_equal(iterable): + g = groupby(iterable) + return next(g, True) and not next(g, False) def profile(func): @@ -22,9 +27,8 @@ def profile(func): return inner - -spl = lambda y: [int(w) for w in y] - +def spl(y): + return [int(w) for w in y] def minmax(l): return min(l), max(l) diff --git a/2023/samples/day09.txt b/2023/samples/day09.txt new file mode 100644 index 0000000..539a763 --- /dev/null +++ b/2023/samples/day09.txt @@ -0,0 +1,3 @@ +0 3 6 9 12 15 +1 3 6 10 15 21 +10 13 16 21 30 45