Problems
 
 
# Name    
A
standard input/output
1 s, 256 MB
Submit  x124
B
standard input/output
3 s, 256 MB
Submit  x39
C
standard input/output
4 s, 256 MB
Submit  x14
D
standard input/output
1 s, 256 MB
Submit  x126
E
standard input/output
1 s, 256 MB
Submit  x31
F
standard input/output
1 s, 256 MB
Submit  x1
G
standard input/output
3 s, 256 MB
Submit  x5
H
standard input/output
1 s, 256 MB
Submit  x111
I
standard input/output
2 s, 256 MB
Submit  x67
J
standard input/output
2 s, 64 MB
Submit  x121
Complete problemset
 
 
 
 
Questions about problems
 
 
  Question Answer
2021-12-04 16:24:20
Problem I. Krosh and bit operations
*****
Is it guaranteed that ans>=1?
No
2021-12-04 15:51:18
Problem F. Krosh and series sum 2
*****
Announcement
nCk, C(n, k) - number of ways to choose k objects from n. Sorry first note was a bit wrong then.
2021-12-04 14:57:36
Problem F. Krosh and series sum 2
*****
What is kCn? is it number of ways to choose n items from k items?
Yes
2021-12-04 14:15:07
Problem B. Sum of sums
*****
Are the problems sorted by difficulty?
No