From 04cae681c3e133db7a339ec99ff063e3e70ecc30 Mon Sep 17 00:00:00 2001 From: Frederik Baerentsen Date: Mon, 18 Dec 2023 16:10:59 -0500 Subject: [PATCH] Finished 2023-12-18 p1 --- 2023/day18/part1.py | 134 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 134 insertions(+) create mode 100644 2023/day18/part1.py diff --git a/2023/day18/part1.py b/2023/day18/part1.py new file mode 100644 index 0000000..12bde2f --- /dev/null +++ b/2023/day18/part1.py @@ -0,0 +1,134 @@ +import sys +import os +from pprint import pprint +import time + + +from shapely.geometry import Point +from shapely.geometry.polygon import Polygon + +from matplotlib.path import Path + +#colors +from termcolor import colored + +def p(x,inside): + for idx,i in enumerate(x): + for jdx,j in enumerate(i): + + #if j == '#': + # print(colored(j,'red'),end='') + #elif (idx,jdx) in steps: + # print(colored(j,'green'),end='') + if (idx,jdx) in inside: + print(colored(j,'green'),end='') + else: + print(j,end='') + print() + +input_f = '' +if len(sys.argv) == 1: + input_f = 'test' +else: + input_f = sys.argv[1] + +grid = [] + +with open(input_f) as file: + for line in file: + grid.append(line.rstrip().split()) + +pprint(grid) + + +size = 1000 +pit = [ ['.']*size for i in range(size)] + +cur = (int(size/2),int(size/2)) +#p(pit) +print() + +steps = [] + +for i in grid: + direction,length,color = i + #print(cur) + length = int(length) + #print(direction,length) + if direction == 'R': + for x in range(cur[1],cur[1]+length+1): + pit[cur[0]][x] = '#' + steps.append((cur[0],x)) + #print(cur[0],x) + cur = (cur[0],cur[1]+length) + + if direction == 'D': + for x in range(cur[0],cur[0]+length): + pit[x][cur[1]] = '#' + steps.append((x,cur[1])) + # print(x,cur[1]) + cur = (cur[0]+length,cur[1]) + + if direction == 'L': + for x in range(cur[1],cur[1]-length-1,-1): + pit[cur[0]][x] = '#' + steps.append((cur[0],x)) + # print(cur[0],x) + cur = (cur[0],cur[1]-length) + + if direction == 'U': + for x in range(cur[0],cur[0]-length,-1): + pit[x][cur[1]] = '#' + steps.append((x,cur[1])) + # print(x,cur[1]) + cur = (cur[0]-length,cur[1]) + + #print(steps) + + #p(pit,(0,0)) + #input() + +#pprint(steps) + + +ground = [] +path = Path(steps) + +s_ground = [] + +m_ground = [] + +polygon = Polygon(steps) + + +count = 0 +for ydx,y in enumerate(pit): + for xdx,x in enumerate(y): + + if path.contains_point((ydx,xdx)): + m_ground.append((ydx,xdx)) + if polygon.contains(Point(ydx,xdx)): + s_ground.append((ydx,xdx)) + +#p(pit,s_ground) + +pprint(len(s_ground)) +pprint(len(m_ground)) + +print(len(m_ground)+len(set(steps))) + +print('Part 1: ' + str(len(set(steps)))) +print('Part 1.2: ' + str(len(s_ground)+len(set(steps)))) + +print(len(ground) + len(set(steps))) + + + +# 12835 +# 13134 +# 17440 +# Part 1: 4306 +# Part 1.2: 17141 +# 4306 + +