@[zl_just](/user/125925) @[lrj124](/user/17521) @[ 吾皇](/user/136601)
A了，谢谢大佬们qwq
by Belarus @ 2019-11-16 20:49:29
@[Belarus](/user/223392) `endl` 巨慢，改成 `cout<<inv[i]<<'\n';` 就能过了
by lrj124 @ 2019-11-16 20:50:07
@[lrj124](/user/17521) 为什么endl会慢这么多啊，搞不懂
by Belarus @ 2019-11-16 20:53:15
@[Belarus](/user/223392) 因为 endl 会刷新缓冲区，反正我都是用的 print 23333
by lrj124 @ 2019-11-16 20:55:45
诶呀，少打个 f
by lrj124 @ 2019-11-16 20:56:53
@[lrj124](/user/17521) 谢大佬Orz
by Belarus @ 2019-11-16 21:00:01
@[Belarus](/user/223392) `fread fwrite`了解一下
by Hjcc @ 2019-11-16 21:47:10
@[侯嘉诚](/user/189435) 不会（
by Belarus @ 2019-11-17 14:08:50