Problems
 
 
# Name    
A
standard input/output
2 s, 256 MB
Submit  x21549
B
standard input/output
2 s, 256 MB
Submit  x9039
C
standard input/output
2 s, 256 MB
Submit  x2176
D
standard input/output
2 s, 256 MB
Submit  x569
E
standard input/output
2 s, 256 MB
Submit  x2037
F
standard input/output
4 s, 256 MB
Submit  x534
G
standard input/output
2 s, 256 MB
Submit  x286
Complete problemset
 
 
 
 
Questions about problems
 
 
  Question Answer
2017-09-24 18:04:08
Announcement
General announcement
*****
Note that we have adjusted the points drain, so your points could have slightly changed.
2017-09-24 17:52:40
Announcement
Problem B. Marvolo Gaunt's Ring
*****
You should print the value of x no matter whether it is negative of positive.
2017-09-24 17:50:46
Announcement
Problem C. Helga Hufflepuff's Cup
*****
Note that in this problem "highest security" is just an incomparable characteristic, it is possible that there are 0 vaults with "highest security".