代码
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# author: a2htray
# create date: 2023/3/2
"""
PAT 乙级 1005
"""
def compute_sequence(num):
sequence = []
while num != 1:
if num % 2 == 0:
num = num // 2
else:
num = (num * 3 + 1) // 2
sequence.append(num)
return sequence
if __name__ == '__main__':
sequences = []
n = int(input())
nums = [int(num) for num in input().split(' ')]
i = 0
while i < n:
sequence = compute_sequence(nums[i])
sequences.append(sequence[:-1])
i += 1
key_nums = []
for i, num in enumerate(nums):
is_key = True
for j, sequence in enumerate(sequences):
if i == j:
continue
if num in sequence:
is_key = False
break
if is_key:
key_nums.append(num)
key_nums.sort(reverse=True)
print(' '.join([str(num) for num in key_nums]))
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