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Hot problems
DWITE '10 R3 #3 - Dominos Tiling
COCI '08 Contest 3 #6 Najkraci
WC '01 P3 - Back to the Future
A Math Contest P5 - Good Arrays
GFSSOC '15 Winter S1 - OR-deal
Counting Subsequences
CCC '11 S1 - English or French?
Problem
Category
Points
AC % ▴
Users
DMOPC '21 Contest 5 P5 - Permutations & Primes (Hard Version)
DMOPC
40p
1.5%
2
DMOPC '21 Contest 10 P4 - Bitwise Telephone
DMOPC
17p
3.9%
31
DMOPC '21 Contest 4 P6 - Balanced Line
DMOPC
35p
4.5%
4
DMOPC '21 Contest 8 P3 - Weaker Data
DMOPC
25p
6.0%
15
DMOPC '21 Contest 6 P5 - Contraband Game
DMOPC
25p
6.1%
11
DMOPC '21 Contest 5 P6 - Permutations & Primes
DMOPC
25p
6.2%
20
DMOPC '21 Contest 7 P5 - King's Commands
DMOPC
35p
6.3%
6
DMOPC '21 Contest 7 P4 - Rocket Race
DMOPC
17p
7.1%
34
DMOPC '21 Contest 1 P5 - Perfect Cross
DMOPC
25p
8.6%
9
DMOPC '21 Contest 2 P3 - Divisions
DMOPC
12p
8.8%
78
DMOPC '21 Contest 8 P6 - Castle Building
DMOPC
40p
8.9%
16
DMOPC '21 Contest 6 P4 - Colourful Paths
DMOPC
15p
9.1%
98
DMOPC '21 Contest 8 P5 - Tree Building
DMOPC
25p
9.2%
33
DMOPC '21 Contest 3 P6 - Good Grids
DMOPC
30p
10.0%
7
DMOPC '21 Contest 5 P5 - Permutations & Primes
DMOPC
30p
10.9%
24
DMOPC '21 Contest 10 P2 - Cycle Sort
DMOPC
7p
11.5%
152
DMOPC '21 Contest 5 P4 - Permutations & Primes
DMOPC
17p
11.6%
70
DMOPC '21 Contest 9 P5 - Chika Circle
DMOPC
20p
11.7%
25
DMOPC '21 Contest 3 P2 - Weak Data
DMOPC
10p
11.9%
160
DMOPC '21 Contest 2 P6 - Strange Function
DMOPC
30p
13.2%
10
DMOPC '21 Contest 3 P4 - Sorting Subsequences
DMOPC
20p
14.2%
32
DMOPC '21 Contest 10 P3 - Peculiar Reflections
DMOPC
12p
14.2%
75
DMOPC '21 Contest 7 P6 - Rainbow Subgraphs
DMOPC
30p
14.6%
8
DMOPC '21 Contest 1 P3 - Mystery DAG
DMOPC
12
14.8%
111
DMOPC '21 Contest 2 P5 - Permutations
DMOPC
25p
15.4%
15
DMOPC '21 Contest 7 P3 - Whack-an-Ishigami
DMOPC
12p
15.5%
82
DMOPC '21 Contest 8 P4 - Grid Operations
DMOPC
25p
15.9%
17
DMOPC '21 Contest 4 P5 - Graph Generator
DMOPC
20p
16.0%
17
DMOPC '21 Contest 5 P3 - Permutations & Primes
DMOPC
12p
16.2%
148
DMOPC '21 Contest 4 P1 - Tree Shopping
DMOPC
7
16.4%
161
DMOPC '21 Contest 9 P1 - Board Numbers
DMOPC
7p
17.5%
178
DMOPC '21 Contest 3 P1 - Sums & Differences
DMOPC
7p
18.0%
205
DMOPC '21 Contest 2 P1 - Bosses
DMOPC
7p
18.1%
260
DMOPC '21 Contest 10 P6 - Median Replace
DMOPC
25p
18.8%
28
DMOPC '21 Contest 9 P4 - Ace of Diamonds
DMOPC
20p
19.8%
44
DMOPC '21 Contest 8 P1 - Peanut Planning
DMOPC
7p
19.9%
213
DMOPC '21 Contest 3 P5 - Crowded Travels
DMOPC
20p
20.8%
18
DMOPC '21 Contest 4 P2 - Festive Groups
DMOPC
7p
21.1%
168
DMOPC '21 Contest 8 P2 - Kanna Market
DMOPC
10p
21.8%
137
DMOPC '21 Contest 3 P3 - Hopping Frogs
DMOPC
15p
21.9%
53
DMOPC '21 Contest 6 P3 - An Art Problem
DMOPC
10p
21.9%
249
DMOPC '21 Contest 5 P1 - Permutations & Primes
DMOPC
5p
22.2%
401
DMOPC '21 Contest 4 P3 - Palindromic Presents
DMOPC
12p
22.2%
164
DMOPC '21 Contest 9 P3 - Terrible Trains
DMOPC
12p
22.4%
90
DMOPC '21 Contest 2 P4 - Water Mechanics
DMOPC
15p
23.4%
56
DMOPC '21 Contest 2 P2 - Scrambling Swaps
DMOPC
7p
23.8%
184
DMOPC '21 Contest 7 P2 - Knitting Scarves
DMOPC
7
24.3%
184
DMOPC '21 Contest 9 P2 - String Puzzle
DMOPC
7p
24.7%
152
DMOPC '21 Contest 1 P6 - Tree Jumping
DMOPC
25p
24.7%
11
DMOPC '21 Contest 7 P1 - Chika Grids
DMOPC
5p
26.6%
285
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