AdventOfCode/2024/13/solution.py

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2024-12-13 21:42:53 +01:00
#!/bin/python3
import sys,time,re
from sympy import *
from pprint import pprint
sys.path.insert(0, '../../')
from fred import list2int,get_re,nprint,lprint,loadFile
start_time = time.time()
input_f = 'input'
#########################################
# #
# Part 1 #
# #
#########################################
def part1():
instructions = []
with open(input_f) as file:
for line in file:
match = get_re(r".*X[\+|=](\d+), Y[\+|=](\d+)",line.rstrip())
if match:
instructions.append(list2int([match.group(1),match.group(2)]))
#print(instructions)
a_cost = 3
b_cost = 1
a = ()
b = ()
r = ()
x,y = symbols('x y',integer=True)
result = 0
for idx, inst in enumerate(instructions):
#print(inst)
if idx%3 == 0:
a = (inst[0],inst[1])
elif idx%3 == 1:
b = (inst[0],inst[1])
elif idx%3 == 2:
r = (inst[0],inst[1])
eq1 = Eq(a[0]*x + b[0]*y,r[0])
eq2 = Eq(a[1]*x + b[1]*y,r[1])
s = solve((eq1,eq2),(x,y))
#print(s)
if s:
result += s[x]*a_cost
result += s[y]*b_cost
#input()
return result
start_time = time.time()
print('Part 1:',part1(), '\t\t', round((time.time() - start_time)*1000), 'ms')
#########################################
# #
# Part 2 #
# #
#########################################
def part1():
return
start_time = time.time()
print('Part 2:',part1(), '\t\t', round((time.time() - start_time)*1000), 'ms')