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Hot problems
CCC '12 S3 - Absolutely Acidic
CCC '21 J3 - Secret Instructions
CCC '24 S2 - Heavy-Light Composition
DMOPC '20 Contest 4 P1 - Missing Numbers
COCI '06 Regional #3 Firefly
ECOO '19 R1 P1 - Free Shirts
ACSL '09 Practice P4 - Rank
Problem
Category ▴
Points
AC %
Users
DMOPC '21 Contest 10 P6 - Median Replace
DMOPC
25p
18.8%
28
DMOPC '21 Contest 10 P1 - Japaneasy
DMOPC
5
36.4%
238
DMOPC '22 Contest 1 P6 - Linear Swap
DMOPC
30p
7.8%
9
DMOPC '22 Contest 2 P5 - Beautiful Bins
DMOPC
30
8.2%
11
DMOPC '22 Contest 1 P3 - Group Project
DMOPC
12p
14.0%
95
DMOPC '22 Contest 1 P1 - Up-down Sequence
DMOPC
5p
24.9%
263
DMOPC '22 Contest 1 P2 - Hat Swap
DMOPC
10p
24.0%
228
DMOPC '22 Contest 2 P3 - Good Permutations
DMOPC
12p
20.0%
122
DMOPC '22 Contest 1 P4 - Card Game
DMOPC
12p
15.9%
63
DMOPC '22 Contest 2 P6 - Yogyakarta Elevators
DMOPC
25p
9.0%
32
DMOPC '22 Contest 3 P3 - Ina's Takodachis
DMOPC
15p
5.7%
58
DMOPC '22 Contest 2 P1 - DMOPC Crisis
DMOPC
5p
15.5%
313
DMOPC '22 Contest 3 P6 - Compressibility
DMOPC
25p
8.0%
19
DMOPC '22 Contest 2 P4 - Falling Leaves
DMOPC
20p
24.3%
28
DMOPC '22 Contest 4 P3 - K-Knight
DMOPC
15
16.0%
42
DMOPC '22 Contest 2 P2 - Line Trace
DMOPC
7p
34.1%
167
DMOPC '22 Contest 4 P2 - Fake Painting
DMOPC
10p
18.5%
89
DMOPC '22 Contest 3 P5 - Alice Rebalancing
DMOPC
20p
7.3%
28
DMOPC '22 Contest 3 P2 - New Components
DMOPC
10p
17.9%
161
DMOPC '22 Contest 3 P4 - Sketchy Cereal
DMOPC
30p
4.9%
22
DMOPC '22 Contest 3 P1 - Holiday Colouring
DMOPC
5p
21.5%
373
DMOPC '22 Contest 4 P5 - Blackboard Game
DMOPC
17p
12.2%
36
DMOPC '22 Contest 4 P6 - K-Sort
DMOPC
30p
5.4%
5
DMOPC '22 Contest 4 P4 - Anki Reviews
DMOPC
17p
13.7%
36
DMOPC '22 Contest 4 P1 - Alone Time
DMOPC
5p
14.2%
179
DMOPC '22 Contest 5 P5 - Twos and Threes
DMOPC
25
18.0%
17
DMOPC '22 Contest 5 P6 - Threes and Twos
DMOPC
20p
20.0%
54
DMOPC '22 Contest 5 P1 - Triple Triplets
DMOPC
5p
23.7%
227
DMOPC '22 Contest 5 P2 - Absolutely Even
DMOPC
7p
19.3%
164
DMOPC '22 Contest 5 P3 - Sorted XOR
DMOPC
12p
15.9%
68
DMOPC '22 Contest 5 P4 - Ricochet
DMOPC
17p
7.8%
22
DMOPC '23 Contest 1 P6 - Sky Clearing Up
DMOPC
35p
14.6%
4
DMOPC '23 Contest 1 P5 - Perfect Matching
DMOPC
25p
11.5%
14
DMOPC '23 Contest 1 P1 - Peak Grid
DMOPC
5p
55.4%
361
DMOPC '23 Contest 1 P2 - Knights on Chessboard
DMOPC
10p
14.1%
197
DMOPC '23 Contest 1 P3 - Colour Scheme
DMOPC
12p
10.8%
86
DMOPC '23 Contest 1 P4 - Wandering Walk
DMOPC
17p
6.4%
54
The Contest Contest 1 P6 - A Typical DMOPC Problem
Uncategorized
30p
1.0%
2
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