超级省钱的DIY,用水泥做出漂亮的卵石小路 (转载)# Living
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Given a word (assume every char is unique in this word) and a string, find
the length of the shortest snippet/substring that contains all characters of
the word. For example: with word "abc" and the string "a brilliant cat is
eating a big cake", the shortest snippet is"big ca", which has length 6.
我能想到的是,用两个index,keep 一个window,然后滑动,每当找到一个substring
满足后,后面的index就滑到下一个可能的字母那里去。
请问谁有更好的方法么?
the length of the shortest snippet/substring that contains all characters of
the word. For example: with word "abc" and the string "a brilliant cat is
eating a big cake", the shortest snippet is"big ca", which has length 6.
我能想到的是,用两个index,keep 一个window,然后滑动,每当找到一个substring
满足后,后面的index就滑到下一个可能的字母那里去。
请问谁有更好的方法么?