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Happy 2011

S题样例有误 现已更新
A has been rejudged
The length of the contest time has been changed to 24 hours.
Contest has finished at 2011-01-01 12:00.

ID Problem
A Secret Code
B Instruction Streamline
C Shortest Distance
D Fermat Point
E Coins
F Encoding
G Simplify the Expression
H Dice
I John and Acmers
J Block Tower I
K Block Tower II
L Basic Browser System
M String
N Count
O Old is Old
P BGL_747(I)
Q BGL_747(II)
R Go Home
S onmylove'string
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