AdventOfCode/2019/day2.py
2019-12-15 15:55:57 +01:00

36 lines
804 B
Python

import itertools
from intcode import Intcode
def main():
with open("day2.txt", "rt") as input_file:
text = input_file.readlines()[0].rstrip()
codes = Intcode.parse_input(text)
# Part 1
codes_p1 = codes.copy()
codes_p1[1] = 12
codes_p1[2] = 2
ic = Intcode(codes_p1)
ic.run()
print(f"Value at pos 0: {ic._memory[0]}.")
# Part 2
noun, verb = 0, 0
for x, y in itertools.permutations(range(1, 100), 2):
codes_p2 = codes.copy()
codes_p2[1] = x
codes_p2[2] = y
ic = Intcode(codes_p2)
ic.run()
if ic._memory[0] == 19690720:
noun, verb = x, y
break
print(f"Found noun={noun} and verb={verb}.")
print(f"Answer: {100 * noun + verb}")
if __name__ == "__main__":
main()