Problem Name Time Limit
A - Low Range-Sum Matrix(1) [Shik Judge] 2s
B - Tiny Room(1) [Shik Judge] 2s
C - Librarian's Work(1) [Shik Judge] 5s
D - Sum Source Detection(1) [Shik Judge] 2s
E - Permutation Period(1) [Shik Judge] 5s
F - Variety(1) [Very Special Judge] 4s
G - Brand registration(1) [Very Special Judge] 2s
H - Cactus(1) [Very Special Judge] 1s
I - Cherry orchard(1) [Very Special Judge] 1s

Contest is over.
programmer: 劉邦鋒 pangfeng, 上官林傑 ericsk, 陳映睿 springgod, 王尹 cindylinz, 蕭俊宏 chhsiao.
Imager: 江昌鴻 senkousha.
modified by: 高紹航 denehs, 沈定 beephoenix, 馮俊菘 csferng, 黃上恩 tmt514