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CCC '22 S5 - Good Influencers
CCC '22 S3 - Good Samples
COCI '22 Contest 4 #2 Zrinka
Baltic OI '19 P3 - Alpine Valley
COCI '20 Contest 1 #4 Papričice
ACSL '09 Practice P4 - Rank
CCC '18 S2 - Sunflowers
Problem
Category
Points
AC %
Users
Waterloo 2017 Fall E - English
Waterloo Local
15p
62.5%
5
Waterloo 2017 Winter A - Vera and Outfits
Waterloo Local
3
70.7%
580
Waterloo 2017 Winter B - Vera and LCS
Waterloo Local
10
17.3%
206
Waterloo 2017 Winter C - Vera and Mean Sorting
Waterloo Local
10
32.6%
23
Waterloo 2017 Winter D - Vera and Sorting
Waterloo Local
15
47.2%
31
Waterloo 2017 Winter E - Vera and Love Triangles
Waterloo Local
25
33.9%
12
Waterloo 2022 Fall A - Zero AAMP Currents
Waterloo Local
10
59.0%
40
Waterloo 2022 Fall B - Lightbulbs
Waterloo Local
15
20.9%
18
Waterloo 2022 Fall C - Squaring the Triangle
Waterloo Local
17
33.6%
30
Waterloo 2022 Fall D - Course Selection
Waterloo Local
5
64.6%
60
Waterloo 2022 Fall E - Water Flow
Waterloo Local
12
20.6%
9
Waterloo 2023 Fall A - Black Frame
Waterloo Local
12
27.5%
16
Waterloo 2023 Fall B - Orb Tent
Waterloo Local
17
32.9%
13
Waterloo 2023 Fall C - Whitewater Rafting
Waterloo Local
17
18.9%
20
Waterloo 2023 Fall D - Reptilian Communism
Waterloo Local
7
25.8%
28
Waterloo 2023 Fall E - Loose Goose
Waterloo Local
25
5.9%
2
Waterloo 2023 Winter A - So I'll Max Out My Constructive Algorithm Skills
Waterloo Local
5
32.0%
32
Waterloo 2023 Winter B - Laser Trap
Waterloo Local
12
21.7%
19
Waterloo 2023 Winter C - Sandpile on Clique
Waterloo Local
10
22.4%
17
Waterloo 2023 Winter D - Link-Cut Tree
Waterloo Local
10
58.8%
18
Waterloo 2023 Winter E - Colourful Tree
Waterloo Local
25
8.0%
8
Waterloo 2025 Fall A - Planting Trees
Waterloo Local
30
30.2%
12
Waterloo 2025 Fall B - Palindromic Triplets
Waterloo Local
20
33.3%
13
Waterloo 2025 Fall C - Magic Matrix
Waterloo Local
12
72.7%
14
Waterloo 2025 Fall D - The Worm in the Apple
Waterloo Local
20
17.0%
8
Waterloo 2025 Fall E - Efficient Room Scheduling
Waterloo Local
5
72.5%
27
WC '01 P1 - The Rock
Woburn Challenge
7
70.0%
28
WC '01 P2 - The Island Of Dr. Strangelove
Woburn Challenge
10
38.5%
8
WC '01 P3 - Back to the Future
Woburn Challenge
5
63.9%
228
WC '01 P4 - Cool Runnings
Woburn Challenge
10
24.2%
19
WC '01 P5 - The Man With The Golden Eye
Woburn Challenge
12
14.9%
17
WC '01 P6 - Mission Impossible 3
Woburn Challenge
5p
18.2%
93
WC '01 P7 - The Sixth Sense
Woburn Challenge
15
6.2%
3
WC '01 P8 - Time to Get Medieval
Woburn Challenge
10
38.8%
42
WC '01 P9 - The Thirteenth Floor
Woburn Challenge
15
32.0%
6
WC '01 Suicidal P1 - Survivor
Woburn Challenge
10
9.9%
15
WC '01 Suicidal P2 - Temptation Island
Woburn Challenge
10
34.2%
31
WC '01 Suicidal P3 - Regis
Woburn Challenge
7
14.6%
39
WC '01 Suicidal P4 - Big Brother
Woburn Challenge
15
6.6%
4
WC '01 Suicidal P5 - The Mole
Woburn Challenge
15p
15.1%
10
WC '01 Suicidal P6 - Blind Date
Woburn Challenge
20p
32.8%
10
WC '02 P1 - A Planning Session
Woburn Challenge
5
17.8%
69
WC '02 P10 - The Final Battle
Woburn Challenge
10
26.4%
25
WC '02 P2 - Cow-bot
Woburn Challenge
10
21.8%
65
WC '02 P3 - The Big Book of Recipes
Woburn Challenge
10
8.4%
12
WC '02 P4 - It's Party Time
Woburn Challenge
5
23.0%
85
WC '02 P5 - Intercepted Cowmmunication
Woburn Challenge
5
35.9%
70
WC '02 P6 - Obstacles Galore
Woburn Challenge
10
16.2%
15
WC '02 P7 - Old Macdonald's Farm
Woburn Challenge
10
28.7%
38
WC '02 P8 - Deploying Troops
Woburn Challenge
7
18.9%
49
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