[USACO2.2] 序言页码 Preface Numbering

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	CC20260161	30ms	804 KiB	C++17(O2)	1.3 KiB	2026-3-21 9:33:35
AC	BC20260080	32ms	840 KiB		1 KiB	2024-4-27 16:53:18
AC	CC20270038	32ms	860 KiB	C++17(O2)	787 Bytes	2026-2-22 10:33:36
AC	BC20280008	32ms	808 KiB	C++17(O2)	1.6 KiB	2026-2-11 21:55:17