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Hot problems
DWITE '10 R3 #3 - Dominos Tiling
COCI '08 Contest 3 #6 Najkraci
A Math Contest P5 - Good Arrays
Counting Subsequences
WC '01 P3 - Back to the Future
CCC '24 S2 - Heavy-Light Composition
CCC '11 S1 - English or French?
Problem
Category
Points
AC %
Users ▴
LKP '18 Contest 2 P3 - Non-strategic Bombing
Uncategorized
7
27.6%
102
COCI '22 Contest 4 #1 7Krokods
COCI
5p
57.1%
102
CCO '12 P3 - Mhocskian Languages
CCO
20p
49.6%
103
DWITE '07 R5 #3 - Parity bit
DWITE
5
70.2%
103
DWITE '08 R1 #2 - Simple Checksum
DWITE
3
51.0%
103
TLE '17 Contest 3 P1 - Willson and Territory
TLE
3p
51.2%
103
Educational DP Contest AtCoder Y - Grid 2
Uncategorized
17
31.9%
103
ECOO '20 P3 - Captcha Fun
ECOO
7p
24.9%
103
Mock CCC '14 S2 - Sleep Cycle
Mock CCC
7p
15.9%
103
WC '16 Contest 3 S2 - Training Regimen
Woburn Challenge
12p
28.4%
103
COCI '17 Contest 3 #1 Aron
COCI
3
62.6%
103
DMOPC '15 Contest 5 P5 - World Line Convergence
DMOPC
15p
23.8%
104
CCOQR '16 - Through A Maze Darkly
CCC
20p
18.4%
104
TLE '16 Contest 2 P2 - Packing Microwaves
TLE
5p
16.9%
104
DWITE '09 R1 #4 - My First True Letter
DWITE
3
38.1%
104
COCI '10 Contest 1 #1 Timsko
COCI
3
33.6%
104
TTC
Uncategorized
3
38.5%
104
An Extraordinarily Coordinated Christmas
Uncategorized
10p
45.7%
104
CCC '99 S2 - Year 2000
CCC
7
14.6%
105
COCI '08 Contest 3 #6 Najkraci
COCI
20p
33.2%
105
CCC '01 S2 - Spirals (Exact Version)
CCC
7
8.3%
105
Valentine's Day '19 S1 - Voting
Uncategorized
5p
22.8%
105
UCC Coding Competition '20 P3 - Farmer Bob
Uncategorized
5
34.8%
105
Fast Search
Uncategorized
15p
26.6%
105
COCI '20 Contest 6 #5 Index
COCI
15p
50.0%
105
SAC '22 Code Challenge 2 P2 - Cookie Sprinkler
SAC Coding Challenge
5
53.0%
105
SAC '22 Code Challenge 5 P3 - Querying Presents
SAC Coding Challenge
7p
51.0%
105
Mock CCC '22 2 S2 - Kaguya Wants to Grow the Student Council
Mock CCC
10p
35.2%
105
A Math Contest P4 - Circle Cutting
Uncategorized
7
40.9%
105
Yet Another Contest 6 P3 - No More Cell Phone Messaging
YAC
10p
13.1%
105
Mock CCC '15 S4 - Ice Pillars
Mock CCC
15p
29.0%
106
CCO '08 P1 - Moving Day
CCO
7p
30.5%
106
TSOC '16 Contest 1 #3 - You and Crossroads
TSOC
5p
44.1%
106
DMOPC '16 Contest 3 P2 - Starstruck Squeeze
DMOPC
10p
8.8%
106
HCI '16 - Lamppost
Uncategorized
5p
28.9%
106
APIO '15 P2 - Jakarta Skyscrapers
APIO
20p
7.7%
106
DWITE '09 R7 #1 - Binary Equipment
DWITE
3
43.2%
106
Another Contest 2 Problem 1 - Poutine
ACC
15
14.6%
106
DMOJ Capture The Flag '20 C1 - All the bases!
CTF
3
60.8%
106
DWITE '06 R5 #2 - Floppy Disk
DWITE
7p
56.4%
106
Trick-or-Treat
Uncategorized
5
21.7%
106
COCI '12 Contest 3 #3 Malcolm
COCI
7
40.1%
106
CCO '22 P2 - Rainy Markets
CCO
17p
18.1%
106
UHCC1 P2 - String
Uncategorized
5
46.3%
106
COCI '15 Contest 1 #1 Karte
COCI
5
61.6%
107
Deemo's Problem
Uncategorized
15
13.6%
107
Mock CCC '14 J3 - Clock Hands
Mock CCC
5
17.2%
107
Baltic OI '17 P6 - Cat in a tree
Baltic OI
15p
35.0%
107
WCIPEG 2018 ECOO Qualifier P1 - Bincent's Billows
ECOO
3
54.7%
107
Diagnostic Test '16 Level 1 P2 - FaxPrimes
Uncategorized
5
54.4%
107
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