2024年3月1日
D. Pinball
摘要： D. Pinball There is a one-dimensional grid of length $n$. The $i$-th cell of the grid contains a character $s_i$, which is either '<' or '>'. When a p 阅读全文
posted @ 2024-03-01 16:20 onlyblues 阅读(25) 评论(0) 推荐(0)
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