input_file = "input.txt" answers = [] participants = [] with open(input_file) as group_answers: line = group_answers.readline() answers.append({}) # Count from zero as the last line return is for the group separation participant_count = 0 while line: if line == "\n": answers.append({}) participants.append(participant_count) participant_count = 0 line = group_answers.readline() continue for character in line: if character == '\n': participant_count += 1 break # Count answers for each questions if character in answers[-1]: answers[-1][character] += 1 else: answers[-1][character] = 1 line = group_answers.readline() print(f"The total number of positive answers is {sum([len(answer_dict) for answer_dict in answers])}") sum_of_all_yes = 0 # Compare the count of yes for each answer with the count of people in the group. # Do so by iterating over both arrays at once and then iterating over the keys of the answer dictionary. for index in range(len(participants)): for key in answers[index]: if answers[index][key] == participants[index]: sum_of_all_yes += 1 print(f"The total number of positive answer by each member of each group is {sum_of_all_yes}")