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Hot problems
CCC '25 J3 - Product Codes
CCC '25 J4 - Sunny Days
CCC '25 J5 - Connecting Territories
Problem
Category
Points
AC %
Users
MNYC '17: 2048
Seasonal
5
29.4%
83
MNYC '17: ASCII Art II
Seasonal
5
42.4%
62
MNYC '17: Hurontario
Seasonal
10p
14.1%
267
MNYC '17: Removing Christmas Trees
Seasonal
15p
21.8%
51
MNYC '17: Skiing Competition
Seasonal
15p
4.4%
7
MNYC '17: Bells
Seasonal
17p
18.3%
64
Mock CCC '14 J1 - Love Overdose
Mock CCC
3
22.6%
529
Mock CCC '14 J2 - Rope Unfolding
Mock CCC
3
44.4%
302
Mock CCC '14 J3 - Clock Hands
Mock CCC
5
17.2%
115
Mock CCC '14 J4 - Selecting Shifts
Mock CCC
7p
11.2%
63
Mock CCC '14 J5 - Spacetime Surfer
Mock CCC
10
30.8%
90
Mock CCC '14 S1 - Reverse Find
Mock CCC
5
27.6%
245
Mock CCC '14 S2 - Sleep Cycle
Mock CCC
7p
16.1%
109
Mock CCC '14 S3 - Spreadsheet Sorting
Mock CCC
7
49.1%
441
Mock CCC '14 S4 - Roadtrip Tracking
Mock CCC
15p
8.8%
58
Mock CCC '14 S5 - Elimination Game
Mock CCC
15p
21.9%
59
Mock CCC '15 J1 - 416
Mock CCC
3p
24.5%
799
Mock CCC '15 J2 - Lowest Exam Mark
Mock CCC
5p
11.7%
439
Mock CCC '15 J3 - Problem-setting Pandemonium
Mock CCC
3p
59.0%
568
Mock CCC '15 J4 - Vox in Box
Mock CCC
7p
18.6%
85
Mock CCC '15 J5 - Royal Guard
Mock CCC
10p
17.0%
169
Mock CCC '15 S1 - Dupvoting
Mock CCC
5p
19.3%
169
Mock CCC '15 S2 - Problem-setting Pandemonium
Mock CCC
5p
36.2%
281
Mock CCC '15 S3 - The Tachyon Trap
Mock CCC
12p
18.8%
67
Mock CCC '15 S4 - Ice Pillars
Mock CCC
15p
29.2%
110
Mock CCC '15 S5 - Kongou
Mock CCC
40p
3.9%
13
Mock DWITE '09 P1 - Super Special Awesome Numbers =D
Uncategorized
5p
41.5%
189
Mock DWITE '09 P2 - The Missing Link...
Uncategorized
7
16.8%
115
Mock DWITE '09 P3 - Trailing Bears!
Uncategorized
7
53.7%
53
Mock DWITE '09 P4 - Lights Out!
Uncategorized
15p
22.2%
36
Mock DWITE '09 P5 - Traffic Lights
Uncategorized
15p
27.5%
14
Mock ECOO '14 P1 - Do You Want to Build a Snowman?
ECOO
12
8.6%
57
Mocking SpongeBob
Uncategorized
3
32.2%
303
Modern Art
Uncategorized
17p
23.7%
15
Modular Multiplicative Inverse
Classics
7
25.8%
250
Modulo Sort
Uncategorized
5p
37.0%
220
Monkey Bread
Uncategorized
7
27.3%
24
Monkey Cards
Uncategorized
12
31.9%
30
Monkey Country
Uncategorized
10
20.8%
47
Monkey Motel
Uncategorized
12p
21.5%
23
Moses Needs Help
Uncategorized
12p
16.8%
14
Mohan's Physics Problem
Uncategorized
7
10.3%
42
Multiplication Madness
Uncategorized
7p
27.7%
60
Dream and the Multiverse
Uncategorized
50p
3.8%
2
MWC '15 #1 P1: Playlist Panic
MWC
5
29.6%
328
MWC '15 #1 P2: Postcard
MWC
3p
31.1%
144
MWC '15 #1 P3: Dolls
MWC
3
24.8%
206
MWC '15 #1 P4: Genetic Probability
MWC
5p
29.2%
31
MWC '15 #1 P5: Love Guru
MWC
7p
25.5%
383
MWC '15 #2 P1: Symmetry
MWC
3
55.3%
49
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