只有在字符串中连续时如何删除重复项?

How to remove duplicates only if consecutive in a string?(只有在字符串中连续时如何删除重复项?)
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问题描述

对于'12233322155552'这样的字符串,通过去除重复,我可以得到'1235'.

For a string such as '12233322155552', by removing the duplicates, I can get '1235'.

但我要保留的是'1232152'只删除连续的重复项.

推荐答案

import re

# Only repeated numbers
answer = re.sub(r'(d)1+', r'1', '12233322155552')

# Any repeated character
answer = re.sub(r'(.)1+', r'1', '12233322155552')

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