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Random
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
A New Country
Uncategorized
25p
24.4%
18
Angie and Functions
Uncategorized
20p
23.6%
15
A Noisy Class
Uncategorized
7
29.4%
758
Another Sorting
Uncategorized
5p
36.2%
432
APIO '07 P1 - Mobiles
APIO
12p
30.7%
69
APIO '07 P2 - Backup
APIO
25p
16.0%
71
APIO '07 P3 - Zoo
APIO
20p
32.5%
63
APIO '08 P2 - Roads
APIO
20p
16.3%
84
APIO '08 P3 - DNA
APIO
15p
31.1%
33
APIO '09 P1 - Digging for Oil
APIO
20p
17.4%
141
APIO '09 P2 - The Siruseri Convention Centre
APIO
25p
18.5%
71
APIO '09 P3 - The Great ATM Robbery
APIO
20p
7.2%
130
APIO '10 P1 - Commando
APIO
20p
25.0%
582
APIO '10 P2 - Patrol
APIO
20p
17.2%
216
APIO '10 P3 - Signaling
APIO
25p
19.5%
45
APIO '11 P1 - Table Coloring
APIO
25p
22.9%
101
APIO '11 P2 - Find the Path
APIO
20p
25.7%
46
APIO '11 P3 - Guess My Word!
APIO
30p
23.9%
8
APIO '12 P1 - Dispatching
APIO
17p
26.2%
297
APIO '12 P2 - Guard
APIO
20p
15.6%
43
APIO '12 P3 - Kunai
APIO
40p
12.9%
30
APIO '13 P1 - Robots
APIO
20p
9.9%
12
APIO '13 P2 - Toll
APIO
35p
21.6%
15
APIO '14 P1 - Palindromes
APIO
25p
18.8%
61
APIO '14 P2 - Split the Sequence
APIO
25p
11.3%
150
APIO '14 P3 - Beads and Wires
APIO
25p
24.0%
25
APIO '15 P1 - Bali Sculptures
APIO
20p
20.6%
99
APIO '15 P2 - Jakarta Skyscrapers
APIO
20p
7.5%
108
APIO '15 P3 - Palembang Bridges
APIO
20p
11.4%
65
APIO '16 P1 - Boat
APIO
20p
19.3%
53
APIO '16 P2 - Fireworks
APIO
40p
29.7%
54
APIO '17 P1 - Land of the Rainbow Gold
APIO
30p
15.0%
16
APIO '17 P2 - Travelling Merchant
APIO
20p
23.5%
47
APIO '18 P1 - New Home
APIO
25
6.3%
9
APIO '18 P2 - Circle Selection
APIO
40p
13.6%
8
APIO '18 P3 - Duathlon
APIO
30
27.3%
48
APIO '19 P1 - Strange Device
APIO
20
21.5%
53
APIO '19 P2 - Bridges
APIO
30p
11.3%
50
APIO '19 P3 - Street Lamps
APIO
35p
10.7%
30
APIO '22 P2 - Game
APIO
25p
1.8%
3
APIO '22 P3 - Permutation
APIO
20p
9.1%
14
APIO '23 P1 - Cyberland
APIO
17p
8.4%
34
APIO '23 P2 - Sequence
APIO
25p
7.1%
20
APIO '23 P3 - Alice, Bob, and Circuit
APIO
45p
0.0%
0
A Plus B
Uncategorized
3p
48.7%
8117
A Plus B (Hard)
Uncategorized
12
11.0%
326
Marcus Approximation
Uncategorized
12p
33.0%
44
All Pairs Shortest Path
Classics
20p
8.7%
6
APTX 4869
Uncategorized
10
43.2%
52
Another Random Contest 1 P1 - Chessgame
Uncategorized
5p
28.8%
76
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