GitHub

skaiy/Python-30-Day-Challenge

Customer stories Events & webinars Ebooks & reports Business insights GitHub Skills ...
GitHub

december-challenge-2019.md

题意：给出一个字符串$s$，找出一个最大的$k$，使得存在两个相同的子序列$a$和$b$，他们下标集合的公共元素不超过$k-1 ...