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Hot problems
COCI '13 Contest 1 #5 Organizator
CCC '21 S2 - Modern Art
CCC '24 S4 - Painting Roads
IOI '11 P4 - Crocodile's Underground City
CCC '00 S1 - Slot Machines
COCI '08 Contest 3 #2 Kemija
CCC '24 S3 - Swipe
Problem
Category
Points
AC %
Users
CCC '20 S2 - Escape Room (Hard)
CCC
15p
5.3%
57
CCC '20 S3 - Searching for Strings
CCC
12p
9.3%
973
CCC '20 S4 - Swapping Seats
CCC
12p
25.2%
528
CCC '20 S5 - Josh's Double Bacon Deluxe
CCC
17p
29.7%
266
CCC '21 J1 - Boiling Water
CCC
3p
53.4%
3399
CCC '21 J2 - Silent Auction
CCC
3p
50.1%
2963
CCC '21 J3 - Secret Instructions
CCC
5p
35.9%
2714
CCC '21 J4 - Arranging Books
CCC
7p
19.9%
1437
CCC '21 S1 - Crazy Fencing
CCC
5p
47.7%
2696
CCC '21 S2 - Modern Art
CCC
7p
29.0%
2411
CCC '21 S3 - Lunch Concert
CCC
10p
25.0%
1080
CCC '21 S4 - Daily Commute
CCC
12p
26.0%
618
CCC '21 S5 - Math Homework
CCC
15p
25.3%
452
CCC '22 J1 - Cupcake Party
CCC
3
55.6%
3242
CCC '22 J2 - Fergusonball Ratings
CCC
3
47.3%
2910
CCC '22 J3 - Harp Tuning
CCC
5p
33.1%
1635
CCC '22 J5 - Square Pool
CCC
10p
20.6%
521
CCC '22 S1 - Good Fours and Good Fives
CCC
5p
39.4%
2248
CCC '22 S2 - Good Groups
CCC
5p
26.2%
1673
CCC '22 S3 - Good Samples
CCC
10p
18.2%
706
CCC '22 S4 - Good Triplets
CCC
15p
28.2%
340
CCC '22 S5 - Good Influencers
CCC
17p
32.2%
208
CCC '23 J1 - Deliv-e-droid
CCC
3p
55.6%
2069
CCC '23 J2 - Chili Peppers
CCC
3p
52.4%
1929
CCC '23 J3 - Special Event
CCC
5p
37.7%
1504
CCC '23 J5 - CCC Word Hunt
CCC
10p
24.9%
598
CCC '23 S1 - Trianglane
CCC
5p
31.8%
1901
CCC '23 S2 - Symmetric Mountains
CCC
7p
26.7%
907
CCC '23 S3 - Palindromic Poster
CCC
10p
15.4%
464
CCC '23 S4 - Minimum Cost Roads
CCC
15p
19.4%
287
CCC '23 S5 - The Filter
CCC
20p
15.9%
98
CCC '24 J1 - Conveyor Belt Sushi
CCC
3p
67.9%
1223
CCC '24 J2 - Dusa And The Yobis
CCC
3p
56.5%
938
CCC '24 J3 - Bronze Count
CCC
5p
39.1%
831
CCC '24 J4 - Troublesome Keys
CCC
5p
18.4%
456
CCC '24 J5 - Harvest Waterloo
CCC
7p
35.7%
512
CCC '24 S1 - Hat Circle
CCC
3p
64.0%
810
CCC '24 S2 - Heavy-Light Composition
CCC
5p
51.8%
721
CCC '24 S3 - Swipe
CCC
10p
16.1%
280
CCC '24 S4 - Painting Roads
CCC
12p
34.8%
230
CCC '24 S5 - Chocolate Bar Partition
CCC
20p
9.8%
33
CCC '96 S1 - Deficient, Perfect, and Abundant
CCC
5
32.4%
1963
CCC '96 S2 - Divisibility by 11
CCC
7
6.8%
199
CCC '96 S3 - Pattern Generator
CCC
5
11.4%
387
CCC '96 S4 - When in Rome
CCC
10
33.1%
585
CCC '96 S5 - Maximum Distance
CCC
7
25.4%
436
CCC '97 S1 - Sentences
CCC
5
29.7%
1064
CCC '97 S2 - Nasty Numbers
CCC
5
46.4%
823
CCC '97 S3 - Double Knockout Competition
CCC
5
11.1%
187
CCC '97 S4 - Dynamic Dictionary Coding
CCC
5
12.1%
242
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