很对,但是样例没过

AT_abc277_e [ABC277E] Crystal Switches

`v` 和 `w` 写反了
by gcomplex @ 2024-09-17 23:58:14


@[da_ke](/user/766675)
by gcomplex @ 2024-09-17 23:58:26


同时分层图你也写挂了
by gcomplex @ 2024-09-18 00:03:42


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