Problems
 
 
# Name    
A
standard input/output
1 s, 64 MB
Submit  x3776
B
standard input/output
1 s, 64 MB
Submit  x1159
C
standard input/output
5 s, 64 MB
Submit  x1236
D
standard input/output
2 s, 64 MB
Submit  x669
Complete problemset
 
 
 
 
Questions about problems
 
 
# Author Problem When Question Answer
B Mar 12, 2010 4:09:03 PM if the solution not unique, can I print any one ?

Example:
in the second sample input, is the output may be
YES
0 5 		Yes
C Mar 12, 2010 4:06:02 PM Will prompt be inserted into database?

What is answer for:
3
a
a
a
 Yes,
Answer is
OK
a1
a2