线买到手，不够长或者太长，都得自己想办法，要么挪电视，要么挪家具。
习题链接：LeetCode 402. 移掉 K 位数字，详情可参考wps下载
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В Москве прошла самая снежная зима14:52
At the start of the season, clubs, fans and the media were told referees would be taking a proactive approach to holding in the penalty area, or grappling as some call it. We have since seen some really good examples of on-field referees making decisions where they have clearly identified holding offences and others where the VAR has recommended a review. But in the past six or eight weeks the issue seems to have intensified, with a change in tack in the Premier League, where clubs are loading the penalty area at every set piece.。关于这个话题，PDF资料提供了深入分析