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Random
Hot problems
CCC '24 S2 - Heavy-Light Composition
Max's Anger Contest Series 2 P3 - Array Anger
String Finding
CCO '07 P2 - Snowflakes
DMOPC '21 Contest 1 P1 - Partial Game
CCC '24 J4 - Troublesome Keys
Problem
Category
Points
AC %
▴
Users
A Plus B
Uncategorized
3p
48.7%
8035
MMCC '14 P2 - Kirito
Uncategorized
20p
25.9%
152
MMCC '14 P1 - Tenri
Uncategorized
17p
23.1%
70
MMCC '14 P3 - Esdeath
Uncategorized
15p
14.9%
204
Fibonacci Sequence
Uncategorized
15p
13.0%
783
A Plus B (Hard)
Uncategorized
12
10.9%
318
Imperative French
Uncategorized
15
5.5%
17
Troubling Triangles
Uncategorized
7
28.4%
433
Hello, World!
Uncategorized
3
56.1%
12226
Mock ECOO '14 P1 - Do You Want to Build a Snowman?
ECOO
12
8.5%
54
CCC '14 J1 - Triangle Times
CCC
3
32.9%
7477
CCC '14 J2 - Vote Count
CCC
3
44.5%
5371
CCC '14 J3 - Double Dice
CCC
3
56.3%
4487
List Minimum
Uncategorized
3
49.8%
3284
CCC '96 S1 - Deficient, Perfect, and Abundant
CCC
5
32.3%
1893
CCC '09 J1 - ISBN
CCC
3
47.3%
3690
Postfix Notation
Uncategorized
7
18.9%
685
CCC '13 J1 - Next in line
CCC
3
62.3%
12063
CCC '13 S1 - From 1987 to 2013
CCC
5
45.8%
3922
CCC '13 J2 - Rotating letters
CCC
3
45.0%
4836
CCC '05 S5 - Pinball Ranking
CCC
12p
19.5%
738
Binary Indexed Tree Test
Data Structure Tests
10p
28.8%
742
CCC '14 S1 - Party Invitation
CCC
5
47.1%
3524
CCC '14 S2 - Assigning Partners
CCC
5
33.3%
2844
CCC '13 J4 - Time on task
CCC
5
44.5%
3009
Disjoint Set Test
Data Structure Tests
10
37.0%
884
Lexicographically Least Substring
Uncategorized
5
46.0%
616
CCC '14 S3 - The Geneva Confection
CCC
7p
26.4%
2808
CCC '12 J1 - Speed fines are not fine!
CCC
3
30.8%
5784
CCC '12 J2 - Sounds fishy!
CCC
3
33.8%
4588
CCC '12 J3 - Icon Scaling
CCC
3
51.3%
2881
ECOO '14 R1 P1 - Martian Time
ECOO
5p
26.5%
76
List Minimum (Hard)
Uncategorized
5
35.9%
1665
Lexicographically Least Substring (Hard)
Uncategorized
15
11.3%
183
CCC '13 S3 - Chances of Winning
CCC
10
41.2%
1364
CCC '12 J4 - Big Bang Secrets
CCC
3
59.2%
2401
Boolean
Uncategorized
3
50.4%
2352
Infinity
Uncategorized
3
35.5%
546
The Mirror
Uncategorized
5
33.3%
678
The Third Cellar
Uncategorized
10
27.0%
323
German Nouns
Uncategorized
5
56.6%
432
Next Prime
Classics
5
19.8%
2182
Find Dates
Uncategorized
7
8.5%
57
CCC '98 S1 - Censor
CCC
5
37.5%
1475
Better Censor
Uncategorized
7
22.4%
114
Unique Elements
Classics
3p
51.4%
1383
Bubble Sort
Uncategorized
7
33.9%
789
Pulse
Uncategorized
3
38.2%
377
Encode
Uncategorized
5
28.5%
246
Sandwich
Uncategorized
5
33.7%
202
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