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Random
Hot problems
CCC '24 S2 - Heavy-Light Composition
APIO '10 P1 - Commando
SAC '22 Code Challenge 5 P2 - Querying Extensions
Max's Anger Contest Series 2 P3 - Array Anger
CCC '12 S2 - Aromatic Numbers
CCO '07 P2 - Snowflakes
CCC '15 S3 - Gates
Problem
Category
Points
AC %
▾
Users
COCI '18 Contest 5 #3 Ispit
COCI
7p
26.8%
39
COCI '18 Contest 5 #4 Parametriziran
COCI
15p
18.3%
34
COCI '18 Contest 5 #5 Transport
COCI
25p
24.8%
24
COCI '18 Contest 5 #1 Titlovi
COCI
5
40.8%
18
COCI '18 Contest 6 #1 Lun
COCI
5p
65.5%
19
COCI '18 Contest 6 #2 Konj
COCI
7p
61.1%
10
ECOO '19 R1 P1 - Free Shirts
ECOO
5p
31.2%
902
ECOO '19 R1 P2 - L-Systems Go
ECOO
5p
22.6%
167
ECOO '19 R1 P3 - Side Scrolling Simulator
ECOO
10p
10.5%
66
ECOO '19 R1 P4 - Bus Route
ECOO
12
9.6%
12
Falling Snowflakes
Uncategorized
15p
40.7%
37
K-Dimensional Grids
Uncategorized
15p
27.7%
21
Brandon's Cryptographically Secure Pseudorandom Number Generator
Uncategorized
30p
0.8%
2
Miniature Sudoku
Uncategorized
7
31.9%
20
CCO '97 P1 - Palindromes
CCO
10
11.0%
22
CCO '97 P2 - Alien Invasion
CCO
10
43.4%
54
CCO '97 P3 - Porous Stone
CCO
10
33.3%
2
CCO '97 P4 - High Tide
CCO
10
11.8%
3
CCO '97 P5 - Space Aliens
CCO
10
46.7%
3
CCO '97 P6 - Aligning DNA
CCO
7
19.1%
11
CCO '98 P2 - Message Deciphering
CCO
7
53.7%
21
CCO '98 P3 - Bus Schedule
CCO
12
12.5%
2
CCO '98 P4 - Scoring Curling
CCO
7p
25.0%
8
CCO '98 P5 - Text Segmentation
CCO
10
23.7%
18
CCO '98 P6 - Derek's Dilemma
CCO
12
46.7%
4
CCO '99 P1 - You Can't Get There From Here
CCO
7
26.5%
16
CCO '99 P3 - Manelzuma's Revenge
CCO
10
28.6%
2
CCO '99 P4 - Maple Roundup
CCO
10
20.5%
26
CCO '99 P5 - Sum Of Products
CCO
15
4.3%
1
CCO '99 P6 - Fast Food
CCO
15
34.4%
10
CCO '00 P2 - Ransom Note
CCO
12p
7.7%
6
CCO '00 P3 - The Game Of 31
CCO
15
54.5%
11
Emoji Search
Uncategorized
5
47.7%
112
Hello, World! (Hard)
Uncategorized
0
6.4%
592
ECOO '19 R2 P1 - Email
ECOO
5p
31.6%
742
ECOO '19 R2 P2 - Pizza
ECOO
10p
23.9%
22
ECOO '19 R2 P3 - Ribbon
ECOO
15p
19.8%
13
ECOO '19 R2 P4 - Tunnels
ECOO
12p
32.6%
7
CCO '09 P1 - Invasion of the Boxes
CCO
20p
12.8%
22
CCO '09 P2 - Dinner
CCO
20p
9.8%
50
CCO '09 P3 - Beware the Geoducks
CCO
10
9.8%
34
CCO '09 P5 - Parade
CCO
17p
17.3%
43
CCO '09 P6 - A Weighty Problem
CCO
12p
16.1%
76
CCO '09 P4 - Bottle Caps
CCO
20p
14.3%
38
Mock CCO '19 Contest 1 Problem 4 - A Chemistry Problem
Mock CCO
15p
14.9%
13
Mock CCO '19 Contest 1 Problem 5 - A Tree Problem
Mock CCO
25p
15.9%
7
Mock CCO '19 Contest 1 Problem 6 - A Geometry Problem
Mock CCO
15p
27.2%
16
Mock CCO '19 Contest 2 Problem 1 - A Dynamic Connectivity Problem
Mock CCO
15p
31.3%
70
Mock CCO '19 Contest 2 Problem 2 - A Simulation Problem
Mock CCO
15p
10.7%
8
Mock CCO '19 Contest 2 Problem 3 - A Cactus Problem
Mock CCO
15p
5.5%
5
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