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Random
Hot problems
CCC '16 S4 - Combining Riceballs
Appleby Contest '19 P5 - Matrix Operation
Cheerio Contest 1 S2 - School Expansion
WC '96 P6 - Bases Multiplication
CCCHK '15 J4 - Where to build my house?
DMOPC '23 Contest 1 P1 - Peak Grid
Max's Anger Contest Series 2 P3 - Array Anger
Problem
Category
Points
AC %
▾
Users
DWITE '02 R2 #3 - The Game of Life
DWITE
7
52.0%
95
Sorting
Classics
3
47.2%
3876
2048
Uncategorized
15
3.1%
89
Rubik's Cube Solver
Uncategorized
50p
0.7%
2
Mock DWITE '09 P3 - Trailing Bears!
Uncategorized
7
53.7%
52
Brap Lesh Mafia
Uncategorized
5
33.6%
346
Machined Surfaces
Uncategorized
5
52.2%
64
T-800's Escape
Uncategorized
10
17.1%
33
Recurrence Solver
Uncategorized
15p
14.4%
15
DWITE '06 R5 #5 - Prime Palindromes
DWITE
10
24.6%
212
Chocolate Bar
Uncategorized
5
51.8%
619
Lego
Uncategorized
15p
27.3%
13
DWITE '06 R5 #1 - Points on a Line
DWITE
7
36.3%
77
Checkerboard Summation (Hard)
Uncategorized
15p
46.5%
243
DWITE '02 R2 #1 - Sales!
DWITE
5
31.8%
91
Lil' Jami
Uncategorized
5p
17.5%
215
Mock DWITE '09 P1 - Super Special Awesome Numbers =D
Uncategorized
5p
41.4%
187
Subway Routes
Uncategorized
12p
49.0%
130
DWITE '02 R2 #2 - The Five M's of Stats 101
DWITE
5
31.1%
111
Battleships
Uncategorized
10p
11.3%
108
Clique
Uncategorized
15p
14.6%
57
Hard Question
Uncategorized
5
62.6%
90
WCIPEG 2018 ECOO Qualifier P3 - Shattering Shadows 2
ECOO
7p
19.4%
10
Mispelling
Uncategorized
3
11.1%
1360
N-K Special
Uncategorized
10p
8.4%
33
Dynamic Range Minimum Test
Uncategorized
12
30.3%
418
Digger
Uncategorized
15p
16.2%
19
Secret Santa
Uncategorized
15
13.0%
20
Diagnostic Test '16 Level 2 P1 - Polan cannot into space
Uncategorized
3
49.2%
120
Guitar Hero
Uncategorized
25p
1.6%
1
IOI '12 P1 - Pebbling Odometer
IOI
30p
2.9%
4
Diagnostic Test '16 Level 1 P1 - StarMath
Uncategorized
3
29.2%
117
Mock DWITE '09 P2 - The Missing Link...
Uncategorized
7
16.6%
112
Root Solver
Uncategorized
30p
3.7%
9
DWITE '06 R5 #4 - Connect-4
DWITE
7
63.6%
40
DWITE '02 R2 #4 - Money Prize
DWITE
10
42.0%
57
COCI '09 Contest 6 #4 Xor
COCI
15p
24.2%
28
Mohan's Physics Problem
Uncategorized
7
10.3%
39
Checkerboard Summation (Easy)
Uncategorized
12p
26.1%
280
Presents
Uncategorized
10
15.2%
41
The Fox and the Wolf
Uncategorized
15p
6.6%
7
Diagnostic Test '16 Level 1 P3 - Faxen Words
Uncategorized
5
29.1%
56
There's a Hole in the Bucket
Uncategorized
7
57.4%
131
Cosmic Inflation
Uncategorized
7
50.0%
28
Skyscrapers
Uncategorized
15p
18.3%
60
DWITE '06 R5 #2 - Floppy Disk
DWITE
7p
56.4%
106
Mirrored Pairs
Uncategorized
3
25.8%
1317
Adding Reversed Numbers
Uncategorized
5
51.3%
507
Circular Numbers
Uncategorized
10
15.8%
11
Caporegime
Uncategorized
10p
27.2%
34
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