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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
CCO Preparation Test 6 P1 - Bus Routes
Mock CCO
20p
24.2%
6
MWC '15 #2 P2: Towering Towers
MWC
10p
18.1%
430
MWC '15 #2 P4: Robotics Summative
MWC
5p
22.1%
28
MWC '15 #2 P3: Breaking Ice
MWC
5
34.3%
59
MWC '15 #2 P1: Symmetry
MWC
3
54.3%
46
CCO Preparation Test 6 P2 - An Easy Problem
Mock CCO
12p
32.5%
204
CCO Preparation Test 6 P3 - HopScotch
Mock CCO
20p
23.1%
140
MWC '15 #3 P1: Challenger Promos
MWC
5p
36.3%
40
MWC '15 #3 P3: Bad News
MWC
7p
23.2%
266
MWC '15 #3 P2: Mechanical Pencils
MWC
5p
16.1%
17
Miracle Sort
Seasonal
3
25.0%
375
CCCJQR P1
Seasonal
0
72.6%
640
CCCJQR P2
Seasonal
3
20.8%
134
CCCJQR P3
Seasonal
7
8.7%
157
CCCJQR P4
Seasonal
0
30.1%
29
CCCJQR P5
Seasonal
15p
21.0%
22
Piggy
Seasonal
7p
3.1%
286
One Small Favour
Uncategorized
10p
1.2%
17
Too Simple
Seasonal
7
15.9%
533
ECOO '16 R1 P1 - Pass or Fail
ECOO
5p
26.2%
301
ECOO '16 R1 P2 - Spindie
ECOO
7p
24.2%
179
ECOO '16 R1 P3 - Railway Sort
ECOO
7p
39.3%
331
ECOO '16 R1 P4 - Kayenne
ECOO
7p
28.7%
41
DMOPC '15 Contest 7 P4 - Magic
DMOPC
10p
10.3%
32
CCO Preparation Test 7 P1 - Game of Stone
Mock CCO
20p
6.4%
3
CCO Preparation Test 7 P2 - XOR Path
Mock CCO
20p
13.5%
16
TSOC '16 Contest 2 #3 - Lu Han and Birthday
TSOC
10p
14.9%
50
TSOC '16 Contest 2 #5 - Last Trip to Surface
TSOC
20
15.7%
17
MWC '15 #4 P1: Love Guru 2
MWC
3
31.7%
54
MWC '15 #4 P3: Salt
MWC
5p
28.0%
120
MWC '15 #4 P5: Arts and Crafts
MWC
10p
17.8%
28
TSOC '16 Contest 2 #6 - Hinata and Volleyball Graph
TSOC
7p
15.9%
12
MWC '15 #4 P4: Dealing with Knots
MWC
7
37.9%
257
MWC '15 #4 P2: Data Formatting
MWC
5
51.7%
54
TSOC '16 Contest 2 #4 - Bob's Primes
TSOC
7
19.1%
85
TSOC '16 Contest 2 #1 - Mary, Jane and Invitations
TSOC
3
23.2%
68
TSOC '16 Contest 2 #2 - Oh My!
TSOC
10
15.3%
18
DMPG '16 S3 - The Faster Way
DMOPC
10p
30.5%
82
DMPG '16 G1 - Explooooosion!
DMOPC
15p
6.2%
95
DMPG '16 G2 - Kabane Apocalypse
DMOPC
20p
26.5%
16
DMPG '16 G4 - Araxxi
DMOPC
15p
20.8%
57
DMPG '16 S4 - MMORPG II
DMOPC
12p
31.6%
41
DMPG '16 G3 - Guerrilla Warfare
DMOPC
20p
16.3%
11
MWC '15 #5 P2: WildCard
MWC
5p
17.7%
27
MWC '15 #5 P1: Stats
MWC
5
15.0%
45
MWC '15 #5 P3: French Words
MWC
5p
30.3%
120
MWC '15 #6 P2: Breadwinners
MWC
7p
27.1%
59
MWC '15 #6 P3: Magical Sets
MWC
7p
14.0%
42
MWC '15 #6 P1: Regpo
MWC
3
47.6%
160
ECOO '16 R2 P1 - Palindrome Panic
ECOO
12p
14.7%
88
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