上台阶

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	jike1994	17ms	536 KiB	C++14(O2)	257 Bytes	2026-1-6 17:31:47
AC	方一帆2	17ms	576 KiB	C++14(O2)	524 Bytes	2026-2-4 10:35:07
AC	方一帆	18ms	532 KiB	C++14(O2)	524 Bytes	2026-2-2 11:57:54
AC	许皓辰	19ms	552 KiB	C++14(O2)	525 Bytes	2026-2-27 15:42:47