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Hot problems
CCO '13 P2 - Tourney
CCO '13 P1 - All Your Base Belong to Palindromes
CCO '13 P3 - LHC
IOI '00 P1 - Palindrome
Problem
Category
Points
AC %
Users
DMOPC '21 Contest 10 P1 - Japaneasy
DMOPC
5
36.4%
238
DMOPC '21 Contest 10 P2 - Cycle Sort
DMOPC
7p
11.6%
155
DMOPC '21 Contest 10 P3 - Peculiar Reflections
DMOPC
12p
14.1%
75
DMOPC '21 Contest 10 P4 - Bitwise Telephone
DMOPC
17p
3.9%
31
DMOPC '21 Contest 10 P5 - Number Theory
DMOPC
20p
43.8%
148
DMOPC '21 Contest 10 P6 - Median Replace
DMOPC
25p
18.8%
28
DMOPC '21 Contest 1 P1 - Partial Game
DMOPC
5p
29.4%
442
DMOPC '21 Contest 1 P2 - Folding Clothes
DMOPC
7p
32.0%
194
DMOPC '21 Contest 1 P3 - Mystery DAG
DMOPC
12
14.8%
111
DMOPC '21 Contest 1 P4 - Uneven Forest
DMOPC
20
27.9%
49
DMOPC '21 Contest 1 P5 - Perfect Cross
DMOPC
25p
8.6%
9
DMOPC '21 Contest 1 P6 - Tree Jumping
DMOPC
25p
24.0%
11
DMOPC '21 Contest 2 P1 - Bosses
DMOPC
7p
18.1%
260
DMOPC '21 Contest 2 P2 - Scrambling Swaps
DMOPC
7p
23.8%
185
DMOPC '21 Contest 2 P3 - Divisions
DMOPC
12p
8.8%
78
DMOPC '21 Contest 2 P4 - Water Mechanics
DMOPC
15p
23.4%
56
DMOPC '21 Contest 2 P5 - Permutations
DMOPC
25p
15.4%
15
DMOPC '21 Contest 2 P6 - Strange Function
DMOPC
30p
13.2%
10
DMOPC '21 Contest 3 P1 - Sums & Differences
DMOPC
7p
18.0%
205
DMOPC '21 Contest 3 P2 - Weak Data
DMOPC
10p
11.6%
162
DMOPC '21 Contest 3 P3 - Hopping Frogs
DMOPC
15p
21.9%
53
DMOPC '21 Contest 3 P4 - Sorting Subsequences
DMOPC
20p
14.2%
32
DMOPC '21 Contest 3 P5 - Crowded Travels
DMOPC
20p
20.8%
18
DMOPC '21 Contest 3 P6 - Good Grids
DMOPC
30p
10.0%
7
DMOPC '21 Contest 4 P1 - Tree Shopping
DMOPC
7
16.5%
162
DMOPC '21 Contest 4 P2 - Festive Groups
DMOPC
7p
21.1%
169
DMOPC '21 Contest 4 P3 - Palindromic Presents
DMOPC
12p
22.3%
166
DMOPC '21 Contest 4 P4 - Christmas Graph
DMOPC
17p
32.4%
40
DMOPC '21 Contest 4 P5 - Graph Generator
DMOPC
20p
16.0%
17
DMOPC '21 Contest 4 P6 - Balanced Line
DMOPC
35p
4.5%
4
DMOPC '21 Contest 5 P1 - Permutations & Primes
DMOPC
5p
22.4%
415
DMOPC '21 Contest 5 P2 - Permutations & Primes
DMOPC
7
31.8%
334
DMOPC '21 Contest 5 P3 - Permutations & Primes
DMOPC
12p
16.1%
151
DMOPC '21 Contest 5 P4 - Permutations & Primes
DMOPC
17p
11.8%
71
DMOPC '21 Contest 5 P5 - Permutations & Primes
DMOPC
30p
11.3%
25
DMOPC '21 Contest 5 P5 - Permutations & Primes (Hard Version)
DMOPC
40p
1.4%
2
DMOPC '21 Contest 5 P6 - Permutations & Primes
DMOPC
25p
6.1%
21
DMOPC '21 Contest 6 P1 - Bigger Big Integer
DMOPC
3p
48.1%
507
DMOPC '21 Contest 6 P2 - Gacha Luck
DMOPC
7p
29.2%
298
DMOPC '21 Contest 6 P3 - An Art Problem
DMOPC
10p
22.0%
251
DMOPC '21 Contest 6 P4 - Colourful Paths
DMOPC
15p
9.1%
99
DMOPC '21 Contest 6 P5 - Contraband Game
DMOPC
25p
6.1%
11
DMOPC '21 Contest 7 P1 - Chika Grids
DMOPC
5p
26.5%
285
DMOPC '21 Contest 7 P2 - Knitting Scarves
DMOPC
7
23.1%
199
DMOPC '21 Contest 7 P3 - Whack-an-Ishigami
DMOPC
12p
13.7%
83
DMOPC '21 Contest 7 P4 - Rocket Race
DMOPC
17p
7.1%
34
DMOPC '21 Contest 7 P5 - King's Commands
DMOPC
35p
6.3%
6
DMOPC '21 Contest 7 P6 - Rainbow Subgraphs
DMOPC
30p
14.6%
8
DMOPC '21 Contest 8 P1 - Peanut Planning
DMOPC
7p
20.2%
234
DMOPC '21 Contest 8 P2 - Kanna Market
DMOPC
10p
21.2%
145
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