82分求助

P1233 木棍加工

@[AC_NOIP_AK_IOI](/user/932933) ```cpp if(x.l!=y.r) ```
by _maojun__ @ 2023-01-23 18:28:16


@_maojun__,谢谢。
by AC_NOIP_AK_IOI @ 2023-01-24 14:26:52


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