adventofcode/2019/02b.py

# Python 3.7

import copy

def main():
    instrs = ""
    with open("02in.txt","r") as file:
        instrs = file.readline()
    instrs.strip('\n')
    ints = [int(x) for x in instrs.split(',')]
    default_ints = copy.deepcopy(ints)
    for j in range(100):
        for k in range(100):
            ints = copy.deepcopy(default_ints)
            ints[1] = j
            ints[2] = k
            i = 0
            while ints[i] != 99:
                if ints[i] == 1:
                    v = ints[ints[i+1]] + ints[ints[i+2]]
                if ints[i] == 2:
                    v = ints[ints[i+1]] * ints[ints[i+2]]
                ints[ints[i+3]] = v
                i += 4
            if ints[0] == 19690720:
                print((100*j) + k)
                return

if __name__ == "__main__":
    main()