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Hot problems
COCI '13 Contest 1 #5 Organizator
CCC '24 S4 - Painting Roads
CCC '00 S1 - Slot Machines
CCC '21 S2 - Modern Art
CCC '13 S1 - From 1987 to 2013
COCI '08 Contest 3 #2 Kemija
IOI '06 P4 - The Valley of Mexico
Problem
Category
Points
AC %
Users
Mock CCC '24 Contest 1 J5 - Mathland
Mock CCC
10p
8.0%
34
Mock CCC '24 Contest 1 J4/S1 - Magical Magnetic Marbles
Mock CCC
5p
11.5%
264
Mock CCC '24 Contest 1 S2 - Owen the Toucan
Mock CCC
7p
32.5%
196
Mock CCC '24 Contest 1 S3 - Optimal Split Point
Mock CCC
10p
2.8%
25
Mock CCC '24 Contest 1 S4 - Tommy's Lemonade Stand
Mock CCC
12p
22.0%
29
Mock CCC '24 Contest 1 S5 - Mock CCC 2025
Mock CCC
20p
15.1%
21
Mock CCC '14 J1 - Love Overdose
Mock CCC
3
22.3%
505
Mock CCC '14 J2 - Rope Unfolding
Mock CCC
3
45.3%
291
Mock CCC '14 J3 - Clock Hands
Mock CCC
5
17.3%
109
Mock CCC '14 J4 - Selecting Shifts
Mock CCC
7p
11.2%
56
Mock CCC '14 J5 - Spacetime Surfer
Mock CCC
10
30.5%
87
Mock CCC '14 S1 - Reverse Find
Mock CCC
5
28.0%
240
Mock CCC '14 S2 - Sleep Cycle
Mock CCC
7p
16.0%
107
Mock CCC '14 S3 - Spreadsheet Sorting
Mock CCC
7
49.1%
434
Mock CCC '14 S4 - Roadtrip Tracking
Mock CCC
15p
9.0%
58
Mock CCC '14 S5 - Elimination Game
Mock CCC
15p
21.8%
58
Mock CCC '15 J1 - 416
Mock CCC
3p
24.3%
778
Mock CCC '15 J2 - Lowest Exam Mark
Mock CCC
5p
11.6%
426
Mock CCC '15 J3 - Problem-setting Pandemonium
Mock CCC
3p
59.8%
553
Mock CCC '15 J4 - Vox in Box
Mock CCC
7p
18.5%
83
Mock CCC '15 J5 - Royal Guard
Mock CCC
10p
16.6%
162
Mock CCC '15 S1 - Dupvoting
Mock CCC
5p
18.3%
153
Mock CCC '15 S2 - Problem-setting Pandemonium
Mock CCC
5p
35.2%
263
Mock CCC '15 S3 - The Tachyon Trap
Mock CCC
12p
18.7%
66
Mock CCC '15 S4 - Ice Pillars
Mock CCC
15p
28.9%
107
Mock CCC '15 S5 - Kongou
Mock CCC
40p
3.9%
13
Mock CCC '22 2 S1 - Kaguya Wants to Let Ishigami Pass
Mock CCC
5p
25.8%
181
Mock CCC '22 2 S2 - Kaguya Wants to Grow the Student Council
Mock CCC
10p
35.7%
109
Mock CCC '22 2 S3 - Kaguya Wants to Analyze the Academy Anthem
Mock CCC
12p
7.8%
41
Mock CCC '22 2 S4 - Kaguya Wants to Build a Great Wall
Mock CCC
15p
7.5%
8
Mock CCC '22 2 S5 - Kaguya Wants to go Window Shopping with Kei Shirogane
Mock CCC
30p
5.5%
5
Mock CCC '23 1 S1 - Composite Fibonacci Numbers
Mock CCC
5p
13.0%
150
Mock CCC '23 1 S2 - Keenan Hates Triangles
Mock CCC
5p
22.1%
98
Mock CCC '23 1 S3 - Richard The Penguin
Mock CCC
10p
5.9%
27
Mock CCC '23 1 S4 - Roger Says Yabe
Mock CCC
15p
7.2%
20
Mock CCC '23 1 S5 - The Obligatory Data Structures Problem
Mock CCC
25p
14.0%
10
Mock CCC '23 2 S1 - Composite Fibonacci Numbers
Mock CCC
3p
23.3%
285
Mock CCC '23 2 S2 - Keenan Hates Triangles
Mock CCC
7p
2.2%
38
Mock CCC '23 2 S3 - Richard The Penguin
Mock CCC
10p
3.9%
13
Mock CCC '23 2 S4 - Roger Says Yabe
Mock CCC
15p
19.0%
7
Mock CCC '23 2 S5 - The Obligatory Data Structures Problem
Mock CCC
25p
11.5%
4
Mock CCC '18 Contest 1 J1 - A String Problem
Mock CCC
3p
45.4%
516
Mock CCC '18 Contest 1 J2 - A Substring Problem
Mock CCC
3p
27.4%
349
Mock CCC '18 Contest 1 J3/S1 - A Math Problem
Mock CCC
5p
24.0%
375
Mock CCC '18 Contest 1 J4/S2 - A Square Problem
Mock CCC
5
34.4%
457
Mock CCC '18 Contest 1 J5/S3 - A Simulation Problem
Mock CCC
7p
21.6%
123
Mock CCC '18 Contest 1 S4 - A Graph Problem
Mock CCC
12p
20.2%
103
Mock CCC '18 Contest 1 S5 - A Palindrome Problem
Mock CCC
15p
8.5%
18
Mock CCC '18 Contest 2 J1 - An Arithmetic Problem
Mock CCC
3p
48.9%
450
Mock CCC '18 Contest 2 J2 - A Software Engineering Task
Mock CCC
3p
36.6%
172
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