62 lines
1.4 KiB
Python
62 lines
1.4 KiB
Python
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def get_input(sample = False):
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ret = []
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with open("sample" if sample else "input", "r") as f:
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group = []
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for line in f.readlines():
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if line == "\n": # empty line
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ret.append(group)
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group = []
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else:
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group.append(line.strip())
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ret.append(group) # add last group
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return ret
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def list_of_string_to_list(s: set):
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ret = []
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for string in s:
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ret += list(string)
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return ret
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def grouped_answers(answers: list):
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ret = []
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start_i = 0
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prev = answers[start_i]
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for cur_i in range(1, len(answers)):
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cur = answers[cur_i]
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if prev != cur:
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ret.append(answers[start_i:cur_i])
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start_i = cur_i
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prev = cur
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ret.append(answers[start_i:]) # add last answer
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return ret
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def list_of_string_to_set(s: set):
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ret = set()
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for string in s:
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ret |= set(string)
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return ret
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def get_result(inp: list, part = 1):
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ret = 0
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for group in inp:
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if part == 1:
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ret += len(list_of_string_to_set(group))
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else:
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group_len = len(group)
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splitted_answers = list_of_string_to_list(group)
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splitted_answers.sort()
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ga = grouped_answers(splitted_answers)
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ret += sum(map(lambda x: int(len(x) == group_len), ga))
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return ret
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if __name__ == "__main__":
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print(get_result(get_input(), part = 2))
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