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Hot problems
Wesley's Anger Contest Reject 5 - Two Permutations
DMOPC '21 Contest 9 P3 - Terrible Trains
DMOPC '21 Contest 1 P1 - Partial Game
DMOPC '20 Contest 4 P1 - Missing Numbers
CCC '96 S3 - Pattern Generator
Problem
Category
Points
AC %
Users ▴
Waterloo 2008 Spring A - Trainsorting
Waterloo Local
10
10.0%
4
Waterloo 2001 Winter D - Division
Waterloo Local
7
21.1%
4
Waterloo 2001 Winter B - Tight words
Waterloo Local
7
66.7%
4
Waterloo 2003 Spring B - Persistent Numbers
Waterloo Local
5
57.1%
4
Waterloo 2005 Winter E - Traditional BINGO
Waterloo Local
5
66.7%
4
NOI '17 P5 - Vegetables
China NOI
25p
66.7%
4
DMOPC '23 Contest 1 P6 - Sky Clearing Up
DMOPC
35p
14.6%
4
Carving Tiny Fractions
Uncategorized
25p
5.3%
4
CCO Preparation Test 2 P2 - Forest Area
Mock CCO
25p
3.8%
5
ECOO '16 R3 P4 - Cuthbert's Calculator
ECOO
15p
68.2%
5
ICPC NAQ 2016 E - Dots and Boxes
ICPC
20
47.1%
5
HCI '16 - Hearing
Uncategorized
15p
18.6%
5
ICPC ECNA 2000 D - Stacking Cubes
ICPC
7
11.5%
5
ECOO '15 R3 P3 - Roadie Cross
ECOO
10p
22.7%
5
ECOO '12 R2 P4 - Lo Shudoku
ECOO
10p
66.7%
5
ECOO '12 R3 P2 - Jewelry Tips
ECOO
12p
43.8%
5
ICPC PACNW 2016 G - Maximum Islands
ICPC
15
20.0%
5
CTU Open Contest 2017 - Equinox Roller Coaster
ICPC
15
21.6%
5
CTU Open Contest 2017 - Ice Cream Samples
ICPC
12
46.2%
5
List Minimum (Harder)
Uncategorized
7
0.2%
5
Baltic OI '18 P3 - Worm Worries
Baltic OI
30p
4.0%
5
DMOPC '18 Contest 5 P6 - An XOR Problem
DMOPC
25p
5.3%
5
COCI '15 Contest 5 #6 Podnizovi
COCI
30p
20.7%
5
Mock CCO '19 Contest 2 Problem 3 - A Cactus Problem
Mock CCO
15p
5.5%
5
APIO '18 P2 - Circle Selection
APIO
25p
12.7%
5
Back To School '19: Beautiful_Times' Fruit Scam
Seasonal
35p
20.4%
5
OCC '19 G3 - Binary Game
Olympiads School
25p
14.3%
5
Link Cut Tree
Uncategorized
50
0.6%
5
COCI '19 Contest 5 #3 Matching
COCI
35p
20.0%
5
ECOO '19 R3 P2 - Array Game
ECOO
12p
21.6%
5
Facebook Hacker Cup '19 Final Round P6 - Temporal Revision
FHC
40p
63.6%
5
NOI '04 P4 - Rainfall
China NOI
25p
10.2%
5
NOI '03 P6 - Wisdom Breaking Connection
China NOI
25p
5.7%
5
NOI '11 P6 - Bunny and Eggy's Game
China NOI
25p
10.0%
5
WC '99 Suicidal P3 - Message
Woburn Challenge
12
42.9%
5
WC '01 P9 - The Thirteenth Floor
Woburn Challenge
15
29.2%
5
WC '17 Contest 3 S4 - Relevant Results
Woburn Challenge
20p
7.8%
5
WC '02 Suicidal P4 - The Spell of Lord Ruru
Woburn Challenge
10
29.3%
5
WC '02 P3 - The Big Book of Recipes
Woburn Challenge
10
6.2%
5
Checkerboard Cut
Uncategorized
25p
30.1%
5
Baltic OI '17 P4 - Friends
Baltic OI
35p
25.0%
5
IOI '12 P4 - Ideal City (Standard I/O)
IOI
25p
42.9%
5
ICPC SWERC 2017 G - Cordon Bleu
ICPC
17
50.0%
5
Baltic OI '06 P5 - RLE Compression
Baltic OI
20
11.1%
5
COCI '20 Contest 1 #3 3D Histogram
COCI
30p
22.2%
5
COCI '11 Contest 1 #6 Skakac
COCI
12p
31.6%
5
COCI '11 Contest 2 #6 Raspored
COCI
15p
38.5%
5
COCI '11 Contest 3 #6 Traka
COCI
20p
53.3%
5
COCI '13 Contest 4 #5 Čokolade
COCI
15p
11.9%
5
COCI '12 Contest 1 #6 Mars
COCI
20p
35.3%
5
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