@[zxdsg](/user/147353) 这是cin 的加速，还是尽量用scanf或者快读吧
by omemi @ 2021-09-23 13:11:29
可以。
by lfxxx @ 2021-09-23 13:28:29
@[omemi](/user/147908) 谢谢大佬
by zxdsg @ 2021-09-24 12:29:57
@[lfxxx](/user/478461) 谢谢大佬
by zxdsg @ 2021-09-24 12:30:17