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Hot problems
Singularity Cup P2 - Reverse Substring Partitioning
CCC '20 S4 - Swapping Seats
CCC '24 J4 - Troublesome Keys
CCC '20 J4 - Cyclic Shifts
Strict Evaluation
Singularity Cup P1 - Maximum Permutation Product
Dynamic Range Minimum Test
Problem
Category
Points
AC %
Users
IOI '16 P6 - Aliens (Standard I/O)
IOI
30p
6.3%
67
IOI '17 P1 - Nowruz
IOI
20p
0.3%
1
IOI '17 P2 - Wiring
IOI
25p
16.2%
63
IOI '17 P3 - Toy Train
IOI
30p
17.4%
41
IOI '17 P4 - The Big Prize
IOI
20p
10.8%
60
IOI '17 P5 - Simurgh
IOI
40p
12.7%
18
IOI '17 P6 - Ancient Books
IOI
25p
11.5%
32
IOI '18 P1 - Combo
IOI
15p
15.6%
194
IOI '18 P2 - Seats
IOI
40p
10.9%
11
IOI '18 P3 - Werewolf
IOI
30p
23.5%
60
IOI '18 P4 - Mechanical Doll
IOI
20p
23.6%
16
IOI '18 P5 - Highway Tolls
IOI
30p
12.0%
16
IOI '18 P6 - Meetings
IOI
35p
12.2%
11
IOI '19 P1 - Arranging Shoes
IOI
15p
16.7%
153
IOI '19 P2 - Split the Attractions
IOI
40p
4.9%
26
IOI '19 P3 - Rectangles
IOI
30p
6.6%
25
IOI '19 P4 - Broken Line
IOI
35p
2.1%
4
IOI '19 P5 - Vision Program
IOI
20p
8.2%
37
IOI '19 P6 - Sky Walking
IOI
40p
9.5%
12
IOI '20 P1 - Comparing Plants
IOI
40p
6.3%
19
IOI '20 P2 - Connecting Supertrees
IOI
15p
13.5%
64
IOI '20 P3 - Carnival Tickets
IOI
20p
12.3%
43
IOI '20 P4 - Packing Biscuits
IOI
25p
14.4%
17
IOI '20 P5 - Counting Mushrooms
IOI
35p
3.0%
4
IOI '20 P6 - Stations
IOI
20p
13.8%
23
IOI '21 P1 - Distributing Candies
IOI
30p
13.6%
33
IOI '21 P2 - Keys
IOI
25p
10.3%
14
IOI '21 P3 - Fountain Parks
IOI
30p
5.3%
8
IOI '21 P4 - Mutating DNA
IOI
12p
30.0%
85
IOI '21 P5 - Dungeons Game
IOI
30p
6.7%
11
IOI '21 P6 - Bit Shift Registers
IOI
30p
13.5%
10
IOI '22 P1 - Catfish Farm
IOI
25p
8.0%
54
IOI '22 P2 - Prisoner Challenge
IOI
25p
7.8%
26
IOI '22 P3 - Radio Towers
IOI
30p
7.0%
17
IOI '22 P4 - Digital Circuit
IOI
25p
26.5%
33
IOI '22 P5 - Rarest Insects
IOI
30p
5.6%
26
IOI '22 P6 - Thousands Islands
IOI
30p
3.3%
7
IOI '23 P1 - Closing Time
IOI
25p
4.1%
24
IOI '23 P2 - Longest Trip
IOI
25p
3.3%
17
IOI '23 P3 - Soccer Stadium
IOI
30p
4.7%
15
IOI '23 P4 - Beech Tree
IOI
35p
3.2%
3
IOI '23 P5 - Overtaking
IOI
25p
5.9%
14
IOI '23 P6 - Robot Contest
IOI
40p
7.1%
5
IOI '24 P1 - Nile
IOI
15p
10.8%
38
IOI '24 P2 - Message
IOI
40p
9.1%
12
IOI '24 P3 - Tree
IOI
30p
5.5%
3
IOI '24 P4 - Hieroglyphs
IOI
35p
2.1%
1
IOI '24 P5 - Mosaic
IOI
20p
10.7%
14
IOI '24 P6 - Sphinx's Riddle
IOI
25p
9.5%
2
IOI '94 P1 - The Triangle
IOI
7p
56.5%
1520
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