Created
December 8, 2020 16:57
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| with open('input.txt') as file: | |
| instructions = file.read().splitlines() | |
| used = [] | |
| idx = 0 | |
| acc = 0 | |
| while idx not in used: | |
| used.append(idx) | |
| op, arg = instructions[idx].split() | |
| if op == "nop": | |
| idx += 1 | |
| continue | |
| if op == "acc": | |
| acc += int(arg) | |
| idx += 1 | |
| continue | |
| if op == "jmp": | |
| idx += int(arg) | |
| assert acc == 5 | |
| ## step 2 | |
| with open('input.txt') as file: | |
| instructions = file.read().splitlines() | |
| for i, instruction in enumerate(instructions): | |
| instructions_copy = instructions.copy() | |
| if instruction.split()[0] == "nop": | |
| instructions_copy[i] = instructions_copy[i].replace('nop', 'jmp') | |
| elif instruction.split()[0] == "jmp": | |
| instructions_copy[i] = instructions_copy[i].replace('jmp', 'nop') | |
| try: | |
| used = [] | |
| idx = 0 | |
| acc = 0 | |
| while idx not in used: | |
| used.append(idx) | |
| op, arg = instructions_copy[idx].split() | |
| if op == "nop": | |
| idx += 1 | |
| continue | |
| if op == "acc": | |
| acc += int(arg) | |
| idx += 1 | |
| continue | |
| if op == "jmp": | |
| idx += int(arg) | |
| except IndexError: | |
| print("made it") | |
| print(acc) | |
| break |
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