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Hot problems
CCC '24 J3 - Bronze Count
COCI '08 Contest 4 #6 Periodni
COCI '23 Contest 5 #4 Rolete
COCI '23 Contest 5 #1 Zlagalica
APIO '09 P1 - Digging for Oil
CCC '24 J5 - Harvest Waterloo
CCC '24 J4 - Troublesome Keys
Problem
Category
Points
AC % ▾
Users
XOR
Uncategorized
7
41.3%
337
DMOPC '15 Contest 4 P2 - The Big Clock
DMOPC
5p
41.3%
262
COCI '15 Contest 1 #2 Akcija
COCI
5
41.3%
84
COCI '10 Contest 7 #1 Šećer
COCI
3p
41.3%
84
CCC '16 J1 - Tournament Selection
CCC
3
41.2%
4677
DWITE '07 R1 #3 - Where's my QWERTY?
DWITE
3
41.2%
97
BlueBook - Max is Last
BlueBook
3
41.2%
503
Mock CCC '19 Contest 1 S1 - Pusheen's Report Card
Mock CCC
3p
41.2%
626
Factorial Sum List
Uncategorized
5
41.2%
117
ICPC NWERC 2015 E - Elementary Math
ICPC
15
41.2%
4
Waterloo 2022 Fall C - Squaring the Triangle
Waterloo Local
17
41.2%
16
WC '18 Contest 3 S2 - Gym Tour
Woburn Challenge
12p
41.1%
131
CCC '13 S3 - Chances of Winning
CCC
10
41.1%
1354
New Year's '16 P6 - Cake Balancing
Seasonal
15p
41.1%
127
COCI '15 Contest 2 #2 Geppetto
COCI
7
41.1%
285
COCI '10 Contest 1 #3 Sretan
COCI
7
41.1%
52
Summer Institute '17 Contest 3 P4 - Customs
SIUCF
15
41.0%
23
Vending Machine
Uncategorized
10p
41.0%
70
CCC '01 S2 - Spirals
CCC
5
41.0%
906
DMPG '18 B6 - House of Cards
DMOPC
7p
41.0%
195
Baltic OI '16 P1 - Bosses
Baltic OI
10p
41.0%
36
COCI '09 Contest 4 #6 Palacinke
COCI
15
41.0%
24
JOI '20 Open P3 - Power Plant
JOI
15p
40.9%
22
Baltic OI '02 P4 - Bicriterial Routing
Baltic OI
12
40.9%
8
COCI '07 Contest 2 #4 Turbo
COCI
15p
40.9%
132
A Math Contest P4 - Circle Cutting
Uncategorized
7
40.9%
105
COCI '18 Contest 5 #1 Titlovi
COCI
5
40.8%
18
CCO '05 P2 - The Great Spamway Strike
CCO
20
40.8%
43
Mock CCC '18 Contest 5 J5/S3 - Directed Graph Connectivity
Mock CCC
7p
40.8%
485
BlueBook - Direction
BlueBook
3
40.7%
868
Falling Snowflakes
Uncategorized
15p
40.7%
37
COCI '21 Contest 3 #2 Cijanobakterije
COCI
10p
40.7%
76
CCC '05 J2 - RSA Numbers
CCC
3
40.7%
2962
MCIPC Contest 2 P2 - Icicles
Uncategorized
3
40.7%
50
Coin Change
Uncategorized
7
40.7%
721
SMAC 08/09 (Nov) #5 - Intelligent Stats
Uncategorized
10p
40.7%
21
Valentine's Day '18 S3 - Carol's Cactesian Conquest
Mock CCC
17p
40.6%
35
IOI '00 P5 - Post Office
IOI
15p
40.6%
183
COCI '11 Contest 1 #4 Ples
COCI
10p
40.6%
48
Triway Cup '18 Summer E - Eyes of Void
Seasonal
7
40.6%
45
IOI '98 P5 - Camelot
IOI
15p
40.6%
51
Baltic OI '03 P4 - The Gangs
Baltic OI
12p
40.6%
41
MMM '14 B - Benergy Transfer
Uncategorized
10
40.5%
25
WC '17 Contest 4 S2 - Strange Travels
Woburn Challenge
12p
40.5%
43
April Fools' Day Contest 1 P5 - Definition
Uncategorized
0
40.5%
182
A Subarray Problem
Uncategorized
7
40.5%
112
DWITE '10 R3 #4 - Forest Fires
DWITE
7
40.5%
127
BlueBook - Magic Square
BlueBook
3
40.5%
240
ICPC ECNA 2005 D - Queens, Knights and Pawns
ICPC
7
40.5%
40
CEOI '19 P3 - Cubeword
CEOI
20p
40.5%
13
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