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Hot problems
CCC '24 S2 - Heavy-Light Composition
Educational DP Contest AtCoder K - Stones
Educational DP Contest AtCoder I - Coins
IOI '94 P1 - The Triangle
COCI '06 Regional #3 Firefly
CCC '17 J4 - Favourite Times
GFSSOC '15 Winter J5 - Secret Santa
Problem
Category
Points
AC %
Users
QCC P2 - Online School
Uncategorized
5p
31.3%
83
QCC P3 - Cohorts
Uncategorized
10p
37.0%
47
QCC P4 - Genetic Sequencing
Uncategorized
5p
54.4%
51
QCC P5 - Vaccine Delivery
Uncategorized
12
16.2%
25
QCC P6 - Freedom!
Uncategorized
7p
38.4%
70
Quine
Classics
10
35.6%
667
Heap Dijkstra Revisited
Data Structure Tests
10
14.3%
10
Rat In A Maze
Uncategorized
5
34.7%
161
Ray Needs Help
Uncategorized
20p
21.8%
76
Raytracing
Uncategorized
10p
52.0%
170
Riolku's Mock CCC S1 - Word Bot
Mock CCC
3p
32.2%
426
Riolku's Mock CCC S2 - Keen Keener Sequence
Mock CCC
7p
15.4%
147
Riolku's Mock CCC S2 - Keen Keener Sequence (Hard Version)
Mock CCC
12
10.7%
17
Riolku's Mock CCC S3 - Mosey's Birthday
Mock CCC
12p
11.7%
63
Riolku's Mock CCC S4 - Clumsy Cindy
Mock CCC
12p
10.7%
70
Riolku's Mock CCC S5 - Keen Keener Multiset
Mock CCC
25p
6.6%
13
A Romantic Dinner Outing
Uncategorized
20
24.0%
18
James' Rectangles
Uncategorized
10p
33.7%
88
Rectangle Counting
Uncategorized
17p
19.8%
64
You Might be a Redneck
Uncategorized
10p
8.8%
20
Find Dates
Uncategorized
7
8.5%
57
Better Censor
Uncategorized
7
22.4%
114
Return of the Digger
Uncategorized
15p
6.8%
15
Revenge of the Digger
Uncategorized
20p
32.8%
62
RGPC '17 P1 - Circle Clicking!
Uncategorized
5
15.3%
143
RGPC '17 P2 - Cubes are Life
Uncategorized
7p
19.4%
147
RGPC '17 P3 - Intercept
Uncategorized
7
19.8%
43
RGPC '17 P4 - Snow Day
Uncategorized
10p
14.4%
102
RGPC '17 P5 - Scrabble Nuts
Uncategorized
12p
13.1%
211
RGPC '18 P1 - Giant Cookie
Uncategorized
3
29.5%
262
RGPC '18 P2 - Performance Points
Uncategorized
5
8.8%
75
RGPC '18 P3 - Chocolate Day
Uncategorized
10
27.4%
265
RGPC '18 P4 - Higgs
Uncategorized
15p
18.4%
40
RGPC '18 P5 - Wormhole
Uncategorized
20p
8.0%
7
Richmond Green P1 - HSIUNG
Uncategorized
5p
35.9%
146
Richmond Green P2 - LOL
Uncategorized
3p
62.5%
228
Richmond Green P3 - ABBA
Uncategorized
10p
31.3%
55
Richmond Green P4 - HEIGHT
Uncategorized
7p
46.8%
219
Riddle Troll
Uncategorized
10
27.3%
17
ICPC RMRC 2016 J - Stack Construction
ICPC
20
37.3%
35
Road Redirection
Uncategorized
17
28.0%
21
ROI '17 P4 - Travel To Metropolis
Uncategorized
25p
10.9%
6
Rolling Encryption
Uncategorized
10
20.5%
97
Root Solver
Uncategorized
30p
3.7%
9
Recurrence Solver
Uncategorized
15p
14.4%
15
RTE '16 J1 - Board Game
Uncategorized
3
21.4%
295
RTE '16 J2 - Guidance Counselling
Uncategorized
7p
17.6%
55
RTE '16 J3 - Mule Wars
Uncategorized
5p
36.0%
57
RTE '16 S1 - Battery Pyramids
Uncategorized
7p
31.8%
79
RTE '16 S2 - Fire Evacuation Plan
Uncategorized
12p
14.9%
74
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