From 5f0fdc1736c93604bd2ba9fda83e4c71b15920b8 Mon Sep 17 00:00:00 2001 From: Mia Herkt Date: Mon, 12 Dec 2022 09:56:59 +0100 Subject: [PATCH] 12: Solve in Python --- 12/input | 41 +++++++++++++++++++++++++++++++++++++++ 12/solution.py | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 93 insertions(+) create mode 100644 12/input create mode 100755 12/solution.py diff --git a/12/input b/12/input new file mode 100644 index 0000000..4b447da --- /dev/null +++ b/12/input @@ -0,0 +1,41 @@ +abccccaaaaaaaaaaaaaccaaaaaaaacccccccccaaaaaaaaccccccccaaacaaacccccccaaaaaaccccccccccccccccccccccaaaacccccccccccacccccccccccccccccccccccccccccccccccccccccccccccaaaa +abccccaaaaacaaaaaaccccaaaaaaccccccccccaaaaaaacccccccccaaaaaaacccccaaaaaaaaaacccccccccccccccccccaaaaaacccccccccaaaaaaaaccccccccccccccccccccccccccccccccccccccccaaaaa +abcccaaaaaccaaaaaaccccaaaaaaccccccaacccaaaaaacccccccccaaaaaacccaaaaaaaaaaaaaaacaaccacccccccccccaaaaaaccccccccccaaaaaacccccccccccccccccccccccccccccccccccccccccaaaaa +abccccccaaccaaaaaaccaaaaaaaaccccccaaacaaaacaaacccccccaaaaaaaaccaaaaaaaaaaaaaaacaaaaacccccccccccccaaccccccccccccaaaaaaccccccccccccccccccccccccccccacccccccccccaaaaaa +abccccccccccaaccaaccaaaaccaacccccccaaaaaaaccccccccccaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaacccccccaaaaccccccccccccccccaaaaaaaacccccccccccccccccccccccccccaaccccccccccccccaa +abcccccccaaaaacccaaaaaaaacccaaccccaaaaaaccccccccccccaaaaaaaaaaaaaaaacaaaaaaaccaaaaaaccccccaaaaaccccccccccccccaaaaaaaaaaccaccccccccccccccccccccccccaccccccccccccccca +abcccccccaaaaacccaaaaaaaaccaaaaccaaaaaaaaccccccccccccccaaacaaaaaaaaacaaaaaacccccaaaacccccaaaaaaccccccccccccccaaaaaaaaaaaaacccccccccccccccllllllccccdccccccccccccccc +abccccccaaaaaacccccaaaaccccaaaaacaaaaaaaaccccccccccccccaaacccccaaaccccaaaaaacccaaccccccccaaaaaacccccccccccccccccaaaaaaaaaacccccccccccccklllllllllcddddccaccaaaccccc +abccccccaaaaaacccccaaaaaaaaaaaaaaaccaaccccccaacaacccccccaaccccccccccccaaacaacccccccccccccaaaaaacccccccccccccccccaaaaaaaaaacccccccccccckklllppllllcddddddddaaaaccccc +abccccccaaaaaaccccaaacaaaaaaaaaaaaccaaccccccaaaaaccccccccccccccccccccccccccccccccccccccccccaaccccccaaccccccccccccaacaaaaaaaccccccccccckklpppppplllmdddddddddacccccc +abccccccccaaacccccaacccaccaaaaaaccccccccccccaaaaaaccccccccccccccccccccccccccccccccccccccccccccccccaaaaccccccccccccaaaaaaaaaaccccccccckkkkppppppplmmmmmmddddddaacccc +abccccaaacaaacccccccccccccaaaaaaccccccccccccaaaaaacccccccccccccccccaaaccccccccccccccccccccccccccccaaaaccccccccccccaaaaaaaaaaccccccccckkkppppuppppmmmmmmmmddeeeacccc +abccccaaaaaaacccccccccccccaaaaaacccaccccccccaaaaaacccccccccccccccccaaaacccccccccccccccccccccaaacccaaaacccccccccccaaaacaaaccccccccccckkkpppuuuuuppqqmmmmmmmmeeeacccc +abcccccaaaaaaccccccccccccaaaaaaaacaaccccccccccaaaccccccccccccccccccaaaaccccccccccccccccccccaaaaccccccccccccccccccaaaaaaaacccccccccckkkkpppuuuuupqqqqqqqmmmmeeeccccc +abcccccaaaaaaaacccccccccccaccccaaaaacccccccccccccccccccccccccccccccaaaccccccccccccccaaaccccaaaacccccccccccccaaccaaaaaaaaccccccccckkkkkrrpuuuxuuuqqqqqqqqmmmmeeccccc +abccccaaaaaaaaaccccccccccccccaaaaaacccccccacaacccccccccccccccccccccccccccccccccccccaaaaaacccaaaccccccccccaaaaccaaaaaaacccccccccckkkkrrrrruuuxxuvvvvvvqqqqnnneeccccc +abcccaaaaaaaaaaccccccccccccccaaaaaaaacccccaaaaacccccccccccccccaaaaaccccccccccccccccaaaaaaccccccccccccccccaaaaaaaaaaaaacccccccccjjjkrrrrruuuxxxxvvvvvvvqqqnnneeccccc +abcaaaaacaaacccccccccccccccccaaaaaaaacccccaaaaaccaacccccccccccaaaaaccccccccccccccccaaaaaccccccccccccccccccaaaaaccaaaaaacccccccjjjrrrrruuuuuxxxyvyyyvvvqqqnneeeccccc +abcaaaaacaaaccaaccccccccccccccccaacccccccaaaaaaaaaaaccccccccccaaaaaaccccccccccccccccaaaaaccccccccccccccccaaaaacccaaaaaaaacaaacjjjrrrtttuuxxxxxyyyyyvvvqqnnneeeccccc +abaaaaaccaacccaaaccaacccaaccccccaccccccccaaaaaaaaaacccccccccccaaaaaaccccccccccccccccaacaacccccccccccccccccccaacccaaccccaaaaaacjjjrrrtttxxxxxxxyyyyyvvvrrnnneeeccccc +SbaaaaacccccccaaaaaaaccaaaacccccccccccccccaaaaaaaaacccccccccccaaaaaaccccccccccccccccccccccccccccccccccccccccccccccaacccaaaaaacjjjrrrtttxxxEzzzzyyyvvvrrnnneeecccccc +abcaaaaacccccccaaaaaaccaaaacccccccccccccccaaaaaaaaacccccccccccccaaccccccccccccccccccccccccccccaaccccccccccaaccccacaaaacaaaaaaajjjrrrtttxxxxxyyyyyvvvrrrnnnfffcccccc +abcaacccccccaaaaaaaacccaaaaccccccccccccccccaaaaaaaaaaccccccccccccccccccccccccccccccccccccccaaaaaccccccccccaaccccaaaaaaaaaaaaaajjjqqqttttxxxxyyyyyyvvrrrnnnfffcccccc +abccccccccccaaaaaaaaaccccccccccccccccccccaaaaaaaaaaaaacccccccccccccccccaacccccccccccccccccccaaaaaccccccaacaaaaaccaaaacaaaaaaaacjjjqqqqttttxxyywyyyywvrrnnnfffcccccc +abccccccccccaaaaaaaaaacccccccccccccccccccaaaaaaaaacaaacccccccccccccaaacaacccccccccccccccccccaaaaaccccccaaaaaaaaccaaaaccccaaacccjjjjqqqqtttxwywwwyywwwrrnnnfffcccccc +abcccccccccccccaaaaaaacccccccccccccccccccaaaaaaaaaaaaaaaacccccccccccaaaaaccccccccccccccccccaaaaacccaaccccaaaaccccaacaacccaaaccccjjjiqqqtttwwywwwwwwwwrrroofffcccccc +abcccccccccccccaaaccccccccccccccccccccccaaaaaaaaaaaaaaaaaccccccccccccaaaaaacccccccccccccccccccaaacaaaccccaaaaaccccccccccccccccccciiiiqqqttwwwwwswwwwrrrroofffcccccc +abcccccccccccccaaccccccccccccaaaacccccccaaaaaaaaccaaaaacccccccccccccaaaaaaacccccccccccccccccccaaaaaaacccaaacaacccccaaaaacccccccccciiiqqqttwwwwsssssrrrrroofffaccccc +abcccccccccccccccccccccccccccaaaaccccccccacaaacccaaaaaaccccccaaccccaaaaaaccccccccaacaaccccccccaaaaaaccccaaaacacccccaaaaacccccccccciiiqqqtsswsssssssrrrrooofffaccccc +abcccccccccccccccccccccccccccaaaaccccccccccaaaccaaaaaaaccccccaaaaccaacaaaccccccccaaaaacccccccccaaaaaaaaccaaacacccccaaaaaacccccccccciiqqqssssssspposrrroooofffaccccc +abccccaaacccccccccccccccccccccaaacccccccccccccccaaacaaaccccaaaaaacccccaaaccccccccaaaaaacccccccaaaaaaaaaaaaaaaaaccccaaaaaaccccccaccciiiqqpsssssppppooooooogffaaccccc +abccccaaaaaacccaaaccccccccccccccccccccccccccccccccccccaccccaaaaacccccccccccccccccaaaaaaccccccaaaaaaaaaaaaaaaaaaccccaaaaaacccaaaaccciiiqqppppppppppoooooogggfaaacccc +abcccaaaaaaacccaaaccccccccccccccccccccccccccccccccccccccccccaaaaaccccccccccccccccaaaaaaccccccaaacaaaccccaaaaaacccccccaacccccaaaaaacciiipppppppphgggggggggggaaaacccc +abccaaaaaaaacccaaacaaacccccccccccccccccccccaacccccccccccccccaacaacccccaacccccccccccaaacccccccccccaaacccccaaaaacccccccccccccccaaaaacciiihppppphhhhgggggggggaaccccccc +abccaaaaaaacaaaaaaaaaacccccccccccccccccccccaaaccccccacccccccccccccccccaaccccccccccccccccccccccccaaaaccccaaaaaaccccccccccccccaaaaacccciihhhhhhhhhhgggggggccaaccccccc +abccccaaaaaaaaaaaaaaacccccccccccccccccccaaaaaaaaccccaaacaaaccccccccccaaaaccaaccccccccaacaacccccaaaaaaacccaacccccccccccccccccaacaaccccchhhhhhhhhaaaacccccccccccccccc +abccccaaaaaacaaaaaaaccccccccccccccccccccaaaaaaaaccccaaaaaaaccccccccccaaaaaaaacaccccccaaaaaccccccaaaaacccccccccccccccccccccccccccccccccchhhhhhacaaaaaccccccccccccccc +abccccaaccccccaaaaaacccccccccccccaaccccccaaaaaacccccaaaaaaccccccaaaaaaaaaaaaaaaccccccaaaaaacccaaaaaaacccccccccccccccccccccccccccccccccccccaaaaccaaacccccccccccaaaca +abccccccccccccaaaaaaaccccccccccccaaccccccaaaaaacccaaaaaaaaccccccaaaaaaaaaaaaaacccccccaaaaaacccaaaaaaaaccccccaaacccccccccccccccccccccccccccaaaaccccccccccccccccaaaaa +abccaaacccccccaaacaaacccccccccaaaaaaaacccaaaaaacccaaaaaaaaacccccaaaaaaaaaaaaaacccccccaaaaaccccaaaaaaaaccccccaaaaccccccccccccccccccccccccccaaaccccccccccccccccccaaaa +abcaaaacccccccaaccccccccccccccaaaaaaaacccaaccaacccaaaaaaaaaaccccccccaaaaaaacaacccccccccaaaccccccaaacaaccccccaaaacccccccccccccccccccccccccccccccccccccccccccccaaaaaa diff --git a/12/solution.py b/12/solution.py new file mode 100755 index 0000000..26f55d7 --- /dev/null +++ b/12/solution.py @@ -0,0 +1,52 @@ +#!/usr/bin/env python3 + +import sys +from collections import deque + +def solve(hmap, startpos, endpos, reverse = False): + dirs = [(-1, 0), (0, -1), (1, 0), (0, 1)] + h, w = len(hmap), len(hmap[0]) + + visited = set() + visited.add(startpos) + + minsteps = float("inf") + + queue = deque([(*startpos, 0)]) + while len(queue): + y, x, steps = queue.popleft() + + if (reverse and hmap[y][x] == ord("a")) or (y, x) == endpos: + minsteps = min(minsteps, steps) + continue + + for d in dirs: + ny, nx = y + d[0], x + d[1] + if 0 <= ny < h and 0 <= nx < w: + diff = hmap[ny][nx] - hmap[y][x] + if reverse: + cond = diff == -1 or hmap[ny][nx] >= hmap[y][x] + else: + cond = diff == 1 or hmap[ny][nx] <= hmap[y][x] + if cond: + c = (ny, nx) + if c not in visited: + visited.add(c) + queue.append((*c, steps + 1)) + + return minsteps + +hmap = [list(l.strip()) for l in sys.stdin] + +for i, y in enumerate(hmap): + for j, x in enumerate(y): + if x == "S": + startpos = (i, j) + hmap[i][j] = "a" + elif x == "E": + endpos = (i, j) + hmap[i][j] = "z" + hmap[i][j] = ord(hmap[i][j]) + +print("Silver:", solve(hmap, startpos, endpos)) +print("Gold:", solve(hmap, endpos, startpos, True))