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Random
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
Cheerio Contest 1 S2 - School Expansion
CCC '20 J4 - Cyclic Shifts
CCC '13 J4 - Time on task
Problem
Category
Points
AC %
▴
Users
IOI '20 P2 - Connecting Supertrees
IOI
15p
13.8%
54
IOI '20 P3 - Carnival Tickets
IOI
20p
11.8%
37
IOI '20 P1 - Comparing Plants
IOI
40p
6.4%
17
IOI '20 P4 - Packing Biscuits
IOI
25p
13.4%
15
IOI '20 P5 - Counting Mushrooms
IOI
35p
2.5%
3
IOI '20 P6 - Stations
IOI
20p
14.5%
22
Joshua Needs Help
Uncategorized
10
54.1%
40
Andrew Needs Help
Uncategorized
12p
26.2%
29
The Heist
Uncategorized
10p
24.5%
21
World Tour Contest Problem 4 — W Szczebrzeszynie chrząszcz brzmi w trzcinie
Seasonal
15p
1.0%
1
UTS Open '21 P4 - Lucky Graph
Uncategorized
15p
16.9%
38
An Extraordinarily Coordinated Christmas
Uncategorized
10p
45.7%
104
ICPC NWERC 2005 A - Unequalled Consumption
ICPC
25
0.0%
0
UTS Open '21 P1 - COVID Party
Uncategorized
5p
32.3%
268
DMOPC '20 Contest 2 P1 - Laugh Graphs
DMOPC
5
32.5%
375
Division Queries and Updates
Uncategorized
20p
22.6%
26
Substring Scoring
Uncategorized
20p
20.5%
13
Monkey Country
Uncategorized
10
20.7%
45
Another Contest 6 Problem 7 - Consonant or Vowel?
ACC
0p
69.3%
132
UTS Open '21 P2 - Prime Array
Uncategorized
10
27.0%
121
UTS Open '21 P7 - April Fools
Uncategorized
30p
8.6%
10
Appleby Contest '20 P2 - Playful Playdoughs
Uncategorized
5p
23.9%
339
Bob's Rocks
Uncategorized
5
47.4%
153
DeMello's Leeches
Uncategorized
15p
56.3%
42
Bob's Temple
Uncategorized
5
55.2%
69
Chores
Uncategorized
7
26.5%
82
Avocado Trees!
Uncategorized
5
32.4%
308
JOI '16 Final P1 - Foehn Phenomena
JOI
10p
65.1%
20
JOI '16 Final P2 - Semiexpress
JOI
12
54.8%
17
Riolku's Mock CCC S2 - Keen Keener Sequence (Hard Version)
Mock CCC
12
10.7%
17
CCC '21 J1 - Boiling Water
CCC
3p
53.7%
3164
CCC '21 J2 - Silent Auction
CCC
3p
51.2%
2757
CCC '21 J3 - Secret Instructions
CCC
5p
36.1%
2517
Segment Tree Practice 1
Uncategorized
12
33.4%
53
Segment Tree Practice 2
Uncategorized
12
39.0%
32
Bruce's Brittle Bridges
Uncategorized
12p
31.6%
70
Segment Tree Practice 3
Uncategorized
15
47.8%
35
Segment Tree Practice 4
Uncategorized
17
43.6%
22
UCC Coding Competition '21 P1 - Counterfeit Detection
Uncategorized
3p
54.7%
408
UCC Coding Competition '21 P2 - Emerald Exchange
Uncategorized
5p
53.2%
341
UCC Coding Competition '21 P3 - Long Pizza
Uncategorized
5p
22.2%
391
UCC Coding Competition '21 P4 - Trampoline Jump
Uncategorized
7p
28.9%
137
UCC Coding Competition '21 P5 - Woodcutting Game
Uncategorized
10p
21.3%
117
COCI '17 Contest 3 #1 Aron
COCI
3
62.6%
103
COCI '17 Contest 3 #2 Programiranje
COCI
7p
45.9%
37
COCI '17 Contest 3 #3 Retro
COCI
12p
11.9%
7
COCI '17 Contest 3 #4 Portal
COCI
12p
53.4%
16
COCI '17 Contest 3 #5 Dojave
COCI
17p
22.2%
9
COCI '17 Contest 3 #6 Sažetak
COCI
20p
50.0%
1
COCI '17 Contest 5 #1 Olivander
COCI
5p
63.3%
63
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