Problems
 
 
# Name    
A
standard input/output
8 s, 1024 MB
Submit  x34
B
standard input/output
1 s, 256 MB
Submit  x275
C
standard input/output
1.5 s, 256 MB
Submit  x552
D
standard input/output
1 s, 256 MB
Submit  x222
E
standard input/output
1 s, 256 MB
Submit  x723
F
standard input/output
1 s, 256 MB
Submit  x813
G
standard input/output
1 s, 256 MB
Submit  x829
H
standard input/output
1 s, 256 MB
Submit  x802
I
standard input/output
1.5 s, 256 MB
Submit  x655
J
standard input/output
3 s, 256 MB
Submit  x520
K
standard input/output
3 s, 256 MB
Submit  x252
L
standard input/output
1 s, 256 MB
Submit  x99
Complete problemset
 
 
 
 
Questions about problems
 
 
  Question Answer
2019-03-29 18:40:44
There was a small mistake in the problem statement. The correct condition is (r_j - l_j + 1 >= k_j) not (r_j - l_j >= k_j). Sorry for that. Please note that test cases and main correct solution are both correct and not effected by this mistake.
2019-03-29 18:25:17
Each element in the array can be negated multiple times.