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Hot problems
CCC '24 S2 - Heavy-Light Composition
CCC '19 S2 - Pretty Average Primes
Educational DP Contest AtCoder K - Stones
IOI '94 P1 - The Triangle
COCI '06 Regional #3 Firefly
CCC '17 J4 - Favourite Times
GFSSOC '15 Winter J5 - Secret Santa
Problem
Category
Points
AC %
Users ▴
UCRPC F21 G - Snack Attack
ICPC
10p
17.9%
21
Peculiar Paints
Uncategorized
5
29.3%
21
Baltic OI '10 P3 - Printed Circuit Board
Baltic OI
12p
52.2%
21
COCI '21 Contest 4 #4 Parkovi
COCI
25p
14.6%
21
COI '12 #3 Snjeguljica
COCI
17p
46.2%
21
BPC 1 J5 - Set
Uncategorized
10
28.6%
21
Yet Another Contest 6 P6 - No More Snakes and Ladders
YAC
17p
17.5%
21
IOI '22 P5 - Rarest Insects
IOI
30p
5.0%
21
CCC '24 S5 - Chocolate Bar Partition
CCC
20p
10.4%
21
City Travel
Olympiads School
15p
16.8%
21
Facebook Hacker Cup '15 Round 2 P3 - Autocomplete Strikes Back
FHC
20
49.0%
22
CSPC '15 #4 - Reading Logs
CSPC
5
11.5%
22
Executable Format
Uncategorized
10
28.3%
22
DMOPC '14 Contest 5 P5 - Attack on Anti-Spiral
DMOPC
25p
16.7%
22
DMPG '15 B6 - Bad S'mores
DMOPC
10p
5.9%
22
DMOPC '15 Contest 3 P6 - Gala
DMOPC
30p
11.3%
22
GFSSOC '15 Winter J4 - Christmas Music
GFSSOC
5p
13.2%
22
GFSSOC '15 Winter S5 - ORBOT
GFSSOC
15p
17.7%
22
CCCJQR P5
Seasonal
15p
21.0%
22
TLE '16 Contest 1 P6 - A Very Normal Test
TLE
25p
19.6%
22
HCI '16 - Cheese
Uncategorized
5p
38.7%
22
COCI '17 Contest 4 #3 Automobil
COCI
7p
10.5%
22
Mock CCO '18 Contest 2 Problem 4 - Victor's Rectangles
Mock CCO
20p
21.9%
22
DMPG '18 S6 - Mimi and Carrots
DMOPC
17p
24.0%
22
UTS Open '18 P6 - Subset Sum
Uncategorized
25p
16.1%
22
TLE 2018-19 P1 - Hello, World!
Seasonal
20p
5.3%
22
COCI '18 Contest 2 #4 Maja
COCI
15p
22.0%
22
CCO '97 P1 - Palindromes
CCO
10
11.0%
22
ECOO '19 R2 P2 - Pizza
ECOO
10p
23.9%
22
CCO '09 P1 - Invasion of the Boxes
CCO
20p
12.8%
22
CCO '02 P1 - Spam
CCO
12
49.1%
22
CEOI '16 P4 - Match
CEOI
15p
19.9%
22
Brazilian IOI TST '19 Day 1 - Secret Santa
Brazil OI
17p
20.5%
22
Magic Maze
Uncategorized
17p
17.0%
22
Bitmask Magic
Uncategorized
15p
30.0%
22
WC '15 Finals S1 - Fuzzbiz
Woburn Challenge
7p
17.8%
22
WC '16 Contest 3 S4 - Replay Value
Woburn Challenge
15p
14.7%
22
WC '98 P3 - Do or Do Not
Woburn Challenge
10
35.3%
22
DMOJ Capture The Flag '20 F3 - Four Taps
CTF
7
44.2%
22
Balkan OI '11 P6 - Trapezoids
Balkan OI
20p
26.3%
22
IOI '20 P6 - Stations
IOI
20p
14.5%
22
COCI '10 Contest 3 #4 Znanstvenik
COCI
7p
41.8%
22
COCI '16 Contest 3 #5 Zoltan
COCI
15p
15.2%
22
COCI '11 Contest 6 #5 Pastele
COCI
12p
25.7%
22
COCI '12 Contest 4 #4 Razlika
COCI
12p
39.4%
22
NOI '15 P3 - Sushi Dinner
China NOI
25p
12.5%
22
NOI '21 P3 - Celebration
China NOI
25p
9.7%
22
NOI '21 P4 - Quantum Communication
China NOI
25p
9.4%
22
COI '15 #4 Torrent
COCI
25p
35.2%
22
Cheerio Contest 1 J5 - Arithmetic Sequence
Uncategorized
10p
5.6%
22
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