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Hot problems
CCC '24 S2 - Heavy-Light Composition
Educational DP Contest AtCoder K - Stones
Educational DP Contest AtCoder I - Coins
CCC '21 J3 - Secret Instructions
IOI '94 P1 - The Triangle
COCI '06 Regional #3 Firefly
CCC '17 J4 - Favourite Times
Problem
Category
Points
AC %
Users ▾
COCI '11 Contest 1 #1 Jabuke
COCI
5p
54.3%
37
COCI '17 Contest 3 #2 Programiranje
COCI
7p
45.9%
37
UCRPC F21 D - Stake Your Claim
ICPC
10
54.9%
37
NOIP '18 P3 - Constructing Tracks
China NOI
17p
21.1%
37
Yet Another Contest 2 P6 - Travel Budget
YAC
20p
15.0%
37
Distinct Shapes
Uncategorized
10
22.1%
37
A Math Contest P14 - Choosing Marbles
Uncategorized
25p
21.9%
37
Valentine's Day '15 P3 - The Great Escape
Seasonal
10p
24.2%
36
DMOPC '14 Contest 6 P5 - Planning
DMOPC
15p
23.6%
36
COCI '15 Contest 4 #6 Endor
COCI
20p
30.9%
36
GFSSOC '17 S4 - First Ace
GFSSOC
10
12.5%
36
COI '06 #3 Sabor
COCI
20p
22.1%
36
ECOO '17 R3 P4 - Ice Cream Beach
ECOO
15p
18.5%
36
COCI '08 Contest 5 #5 Tresnja
COCI
15
41.5%
36
DWITE '09 R4 #5 - Ice Maze
DWITE
10
51.2%
36
DMOPC '17 Contest 2 P6 - Lazy Days
DMOPC
15p
15.4%
36
DMOPC '20 Contest 6 P4 - Land of the Carrot Trees II
DMOPC
17p
19.7%
36
TLE '17 Contest 7 P5 - Willson and Mating
TLE
15p
13.8%
36
ECOO '18 R2 P1 - Artificial Photosynthesystem
ECOO
7p
39.1%
36
Double Doors Regional P5 - Tudor Eats Ice Cream Cones
Uncategorized
15
25.2%
36
Mock CCC '19 Contest 2 J5 - Tudor Drinks Even More Tea
Mock CCC
10p
7.5%
36
COCI '15 Contest 6 #5 Krumpirko
COCI
15p
21.6%
36
CCC '20 J4 - Cyclic Shifts (Hard)
CCC
12p
3.8%
36
COCI '15 Contest 7 #3 Ozljeda
COCI
10
51.1%
36
ACSL '09 Practice P2 - Cars
Uncategorized
10p
19.1%
36
WC '17 Contest 2 S2 - Don't Follow the Lights
Woburn Challenge
12p
39.8%
36
WC '01 Suicidal P3 - Regis
Woburn Challenge
7
16.0%
36
COI '09 #1 Hrastovi
COCI
15p
25.3%
36
COCI '20 Contest 3 #3 Sateliti
COCI
17p
20.0%
36
COCI '11 Contest 2 #3 Zadaća
COCI
7p
35.5%
36
COCI '20 Contest 4 #5 Patkice II
COCI
15p
37.0%
36
SAC '22 Code Challenge 5 P5 - Querying Rectangles
SAC Coding Challenge
15p
15.7%
36
COCI '21 Contest 4 #3 Izbori
COCI
17p
23.9%
36
DMOPC '22 Contest 4 P5 - Blackboard Game
DMOPC
17p
12.2%
36
DMOPC '22 Contest 4 P4 - Anki Reviews
DMOPC
17p
13.7%
36
COCI '23 Contest 1 #3 AN2DL
COCI
12p
29.4%
36
COCI '23 Contest 2 #2 Pingvin
COCI
7p
46.1%
36
WOSS Dual Olympiad 2023 S2: Geese Attack
Uncategorized
10
12.4%
36
IOI '16 P2 - Roller Coaster Railroad
IOI
35p
45.1%
35
ECOO '15 R3 P1 - Just the Factoradics, Ma'am
ECOO
7p
46.0%
35
ECOO '14 R1 P2 - Orphan Black
ECOO
5p
66.1%
35
ECOO '14 R1 P4 - Fischer Random Chess
ECOO
5p
38.3%
35
COCI '08 Contest 4 #3 Rot
COCI
5
27.9%
35
DWITE '11 R2 #2 - Scratch Card
DWITE
5
29.5%
35
DWITE '07 R3 #5 - Portals
DWITE
7
48.9%
35
Summer Institute '17 Contest 1 P4 - Clips of Video
SIUCF
20
43.7%
35
Summer Institute '17 Contest 1 P6 - Fortunate Farmland
SIUCF
10
23.0%
35
Valentine's Day '18 S3 - Carol's Cactesian Conquest
Mock CCC
17p
40.6%
35
Mock CCC '18 Contest 5 S5 - California Boggle
Mock CCC
20p
10.6%
35
TLE '17 Contest 7 P4 - Database
TLE
20p
24.3%
35
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