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感觉求最小公倍数就没道理，而且行和列之间相互影响，为啥每行每列KMP求出最小覆盖就是对的？求了最小公倍数，为啥最小公倍数大于行数或列数的时候就要把它更新为行数或列数？ Followed by: Post your reply here: |
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