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Hot problems
CCC '24 S2 - Heavy-Light Composition
Max's Anger Contest Series 2 P2 - Password Anger
Max's Anger Contest Series 2 P3 - Array Anger
CCC '12 S2 - Aromatic Numbers
The Cosmic Era P2 - Uneven Sand
Cheerio Contest 1 S2 - School Expansion
Problem
Category
Points
AC % ▴
Users
DWITE '10 R1 #5 - Ricochet Robot
DWITE
7
42.1%
19
NOI '15 P5 - Cocktail Party
China NOI
25p
42.1%
13
UTS Open '21 P3 - Latin Class
Uncategorized
10p
42.1%
187
VM7WC '16 #3 Gold - Hello, Officer.
VM7WC
10
42.1%
460
Python PIe
Uncategorized
0p
42.2%
70
Cheerio Contest 3 P2 - Double-O-Seven
Uncategorized
5p
42.2%
387
Mathtermind
Uncategorized
7
42.2%
9
COCI '19 Contest 6 #2 Birmingham
COCI
7p
42.2%
76
COCI '16 Contest 2 #4 Prosječni
COCI
10p
42.2%
31
ECOO '14 R2 P3 - EasySweeper
ECOO
10p
42.3%
16
MNYC '17: ASCII Art II
Seasonal
5
42.3%
61
COCI '20 Contest 6 #2 Alias
COCI
10p
42.3%
149
Bulgarian OI '09 P1 - Minesweeper
Bulgarian OI
10
42.3%
65
ECOO '13 R2 P2 - The Walking Dead
ECOO
7p
42.3%
9
CCO '13 P2 - Tourney
CCO
12p
42.3%
379
DMOPC '16 Contest 1 P1 - A New Chapter
DMOPC
3p
42.4%
351
GFSSOC '15 Fall S2 - Hearth
GFSSOC
5p
42.4%
353
COCI '21 Contest 1 #1 Ljeto
COCI
5p
42.4%
113
DWITE '07 R4 #4 - Shortest path around
DWITE
7
42.4%
187
DWITE '10 R3 #5 - E-Searching
DWITE
7
42.4%
10
DMOPC '14 Contest 6 P2 - GO Faster
DMOPC
5p
42.4%
250
Intertwined Strings
Uncategorized
7p
42.5%
143
COCI '13 Contest 3 #3 Rečenice
COCI
7p
42.6%
20
BlueBook - Column of Numbers
BlueBook
3
42.6%
691
GFSSOC '14 Winter S1 - Friendship is a number
GFSSOC
5p
42.6%
200
WC '17 Contest 2 J3 - Escaping the Mines
Woburn Challenge
3
42.7%
82
COCI '07 Contest 3 #2 Oktalni
COCI
3
42.7%
302
NOIP '18 P2 - Currency System
China NOI
10p
42.8%
114
CCC '13 S5 - Factor Solitaire
CCC
15p
42.8%
733
CCC '08 J4 - From Prefix to Postfix
CCC
7
42.8%
888
CCO '04 P1 - Scribble
CCO
5
42.8%
126
CCC '20 S1 - Surmising a Sprinter's Speed
CCC
5p
42.8%
2047
CTU Open Contest 2018 - Lighting
ICPC
12
42.9%
12
CTU Open Contest 2018 - Split Game
ICPC
15
42.9%
9
WC '99 Suicidal P3 - Message
Woburn Challenge
12
42.9%
5
IOI '12 P4 - Ideal City (Standard I/O)
IOI
25p
42.9%
5
COCI '20 Contest 1 #2 Bajka
COCI
7p
42.9%
54
COI '16 #1 Ili
COCI
17p
42.9%
3
NOIP '99 Junior P1 - Cantor Table
China NOI
5p
42.9%
15
JOI '21 Open P1 - Crossing
JOI
20p
42.9%
9
NOIP '08 P3 - Message Passing
China NOI
15p
42.9%
16
Google Code Jam '10 Qualification Round Problem B - Snapper Chain
Google Code Jam
5p
42.9%
6
Google Code Jam '11 Qualification Round Problem C - Magicka
Google Code Jam
5p
42.9%
3
CCC '20 J3 - Art
CCC
3p
42.9%
2366
CCC '01 J2 - Mod Inverse
CCC
3
42.9%
2534
New Year's '15 P1 - Invitation Devastation
Seasonal
3
42.9%
356
BlueBook - Cross Country
BlueBook
3
42.9%
1285
Facebook Hacker Cup '15 Round 3 P3 - Gentrification
FHC
25p
42.9%
17
Educational DP Contest AtCoder B - Frog 2
Uncategorized
7
43.0%
859
Google Kickstart '17 Round C Problem A - Ambiguous Cipher
Google Kick Start
7p
43.0%
31
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