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Hot problems
CCC '15 J4 - Wait Time
CCC '22 S5 - Good Influencers
CCC '22 S3 - Good Samples
CCO '01 P1 - The Monkey Dance
COCI '22 Contest 4 #2 Zrinka
CCC '23 S5 - The Filter
Back From Summer '17 P2: Crayola Lightsaber
Problem
Category
Points
AC %
Users
Back From Summer '17 P4: Pair Programming
Seasonal
12p
27.8%
51
Back From Summer '17 P5: Confusing Codeforces Contest
Seasonal
25p
14.6%
37
Back From Summer '17 P6: Crowded Cities
Seasonal
20p
10.7%
145
Back From Summer '19 P1: Winnie's Orphans
Seasonal
3
43.9%
360
Back From Summer '19 P2: Straying From God's Light
Seasonal
7p
17.8%
177
Back From Summer '19 P3: ASDFGHJKL
Seasonal
10p
9.1%
68
Back From Summer '19 P4: Wesley And Cake
Seasonal
25p
19.4%
9
Back From Summer '19 P5: ABC123E
Seasonal
17p
33.5%
44
Back From Summer '19 P6: Composite Zeyu
Seasonal
15p
38.1%
45
Bulgarian OI '09 P1 - Minesweeper
Bulgarian OI
10
42.3%
70
Bulgarian OI '09 P2 - Boxen
Bulgarian OI
12
41.0%
198
Bulgarian OI '09 P4 - Frogs
Bulgarian OI
12p
21.5%
137
Bulgarian OI '09 P5 - Special Sequence
Bulgarian OI
30p
16.2%
39
Bulgarian OI '09 P6 - Diamonds
Bulgarian OI
12
23.8%
63
Binary
Uncategorized
5
24.3%
943
Bill's Binoculars
Uncategorized
5
40.1%
59
Bit Combinations
Uncategorized
7
17.9%
28
Fast Bit Duplication
Uncategorized
10
32.0%
49
Bitmask Magic
Uncategorized
15p
30.2%
26
Balkan OI '11 P1 - Two Circles
Balkan OI
30p
12.5%
14
Balkan OI '11 P2 - Decrypt
Balkan OI
15p
50.0%
10
Balkan OI '11 P3 - Medians
Balkan OI
12p
25.3%
59
Balkan OI '11 P4 - Compare
Balkan OI
25p
28.6%
18
Balkan OI '11 P5 - Time Is Money
Balkan OI
30p
16.7%
54
Balkan OI '11 P6 - Trapezoids
Balkan OI
20p
30.5%
36
A Block Game
Uncategorized
3
39.6%
120
Bob Hates Triangles
Uncategorized
7
47.8%
103
Bob's Rocks
Uncategorized
5
46.4%
185
Bob's Temple
Uncategorized
5
54.0%
80
Bohemian Rhaksody
Uncategorized
45p
4.8%
12
Boolean
Uncategorized
3
50.2%
2476
Boxdropper
Uncategorized
20p
22.0%
20
Stacking Boxes
Uncategorized
5
32.3%
94
Boxlings
Uncategorized
15p
17.1%
57
Union Laser
Uncategorized
25p
35.6%
4
BPC 1 J1 - Facial Recognition
Uncategorized
3
55.2%
573
BPC 1 J2 - Cake
Uncategorized
3
35.9%
239
BPC 1 J3 - Group Project
Uncategorized
5
44.2%
257
BPC 1 J4 - Assignment of the Year
Uncategorized
10p
10.4%
54
BPC 1 J5 - Set
Uncategorized
10
26.8%
25
BPC 1 S1 - Homework Questions
Uncategorized
5
17.9%
179
BPC 1 S2 - Train Commute
Uncategorized
12p
6.7%
50
BPC 1 S3 - Bus Stops
Uncategorized
17p
12.9%
25
BPC 1 S4 - Binary Matrices
Uncategorized
25p
13.0%
10
BPC 1 S5 - Temple
Uncategorized
25p
7.6%
11
BPC 1 S6 - Painters
Uncategorized
30p
9.3%
10
Brap Lesh Mafia
Uncategorized
5
33.8%
362
Brazilian IOI TST '19 Day 1 - Secret Santa
Brazil OI
17p
17.9%
26
Bruce's Brittle Bridges
Uncategorized
12p
30.7%
77
Bruce String
Uncategorized
12p
24.0%
19
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