# Advent of Code 2018 # December 01, puzzle 1 import sys def main(args): freqlist = [0] found = False cycles = 0 arglist = args.split(",") arglist = [x.strip() for x in arglist] freq = 0 while not found: cycles += 1 for item in arglist: if item[0] == "+": freq += int(item[1:]) elif item[0] == "-": freq -= int(item[1:]) if freq in freqlist: return "Found after {} cycles: {}".format(cycles,freq) freqlist.append(freq) if __name__ == "__main__": args = input("Paste the modulations here: ") print(main(args))