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Hot problems
COCI '08 Contest 3 #2 Kemija
Problem
Category
Points
AC %
▾
Users
Peculiar Paints
Uncategorized
5
29.3%
21
WOSS Dual Olympiad 2021 J3: Frisbee Golf
Seasonal
5p
27.1%
221
GFSS Christmas Challenge P1 - Arithmetic Operators
GFSSOC
3
71.2%
171
GFSS Christmas Challenge P2 - Height Inspection
GFSSOC
3
61.0%
76
DMOPC '18 Contest 2 P6 - Standing Ovation (Hard Version)
DMOPC
35
2.4%
1
WOSS Dual Olympiad 2021 S3: Late for Class!
Seasonal
10p
26.8%
67
GFSS Christmas Challenge P3 - Candy Distribution
GFSSOC
5p
29.1%
79
GFSS Christmas Challenge P4 - Coal Counting
GFSSOC
7p
26.6%
62
NOI Winter Camp '17 P2: Challenge
China NOI
25p
0.0%
0
Python PIe
Uncategorized
0p
42.2%
70
A Subarray Problem
Uncategorized
7
39.9%
112
Divide and Mod
Uncategorized
3
29.8%
69
COI '18 #1 Izlet
COCI
30p
0.0%
0
Liars
Uncategorized
15p
15.7%
9
COI '18 #2 Ljepotica
COCI
15p
26.7%
7
COI '18 #3 Segway
COCI
12p
40.0%
4
COI '18 #4 Tenis
COCI
30p
15.4%
4
CCO '05 P3 - That's News To Me
CCO
20
0.0%
0
DMOPC '21 Contest 5 P5 - Permutations & Primes (Hard Version)
DMOPC
40p
1.5%
2
Factors
Uncategorized
7
8.9%
47
An Animal Contest 5 P2 (Hard Version) - Permutations & Primes
AAC
10
12.1%
51
Cheerio Contest 2 P3 - Digits
Uncategorized
5p
20.4%
38
COI '17 #1 Paprike
COCI
12p
52.9%
27
COI '17 #2 Pick
COCI
20p
0.0%
0
COI '17 #3 Svjetlost
COCI
25p
0.0%
0
COI '17 #4 Zagonetka
COCI
17p
2.1%
2
Number Theoretic Transform
Uncategorized
12
25.7%
11
Baltic OI '15 P1 - Bowling
Baltic OI
20p
50.0%
3
Baltic OI '15 P2 - Editor
Baltic OI
25p
45.9%
9
Modern Art
Uncategorized
17p
23.7%
15
Baltic OI '15 P3 - Network
Baltic OI
15p
26.0%
31
NOIP '15 P5 - Substring
China NOI
12p
38.6%
11
COI '16 #1 Ili
COCI
17p
42.9%
3
COI '16 #2 Raspad
COCI
30p
60.0%
3
COI '16 #3 Trapezi
COCI
35p
0.0%
0
COI '16 #4 Zagrade
COCI
25p
25.0%
10
Baltic OI '15 P4 - File Paths
Baltic OI
20p
53.3%
4
Baltic OI '15 P5 - Hacker
Baltic OI
15p
43.9%
14
Baltic OI '15 P6 - Tug of War
Baltic OI
20p
11.1%
4
COI '12 #1 Hiperprostor
COCI
20p
6.7%
1
COI '12 #2 Rotacije
COCI
30p
12.5%
1
COI '12 #3 Snjeguljica
COCI
17p
46.2%
21
COI '12 #4 Spijuni
COCI
10p
30.4%
24
BPC 1 J1 - Facial Recognition
Uncategorized
3
59.0%
433
Intertwined Strings
Uncategorized
7p
42.5%
143
Magic Sequence
Olympiads School
7p
64.9%
92
BPC 1 J5 - Set
Uncategorized
10
28.6%
21
Maximum Deviation Spanning Tree
Olympiads School
25p
4.0%
4
A Math Contest P3 - LIS Reconstruction
Uncategorized
7
47.0%
160
Cheerio Contest 1 S4 - Mystery Boxes
Uncategorized
10p
17.1%
40
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