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Random
Hot problems
CCC '16 S4 - Combining Riceballs
CCC '24 S2 - Heavy-Light Composition
Summer Institute '17 Contest 3 P5 - Balanced Cycles
WC '96 P6 - Bases Multiplication
Appleby Contest '19 P5 - Matrix Operation
EGOI '23 P4 - Bikes vs Cars
Cheerio Contest 1 S2 - School Expansion
Problem
Category
Points
AC %
▾
Users
SAC '22 Code Challenge 1 P4 - That Problem
SAC Coding Challenge
7p
19.6%
75
SAC '22 Code Challenge 1 P5 - That Wall
SAC Coding Challenge
12
26.9%
31
SAC '22 Code Challenge 1 P1 - That Teacher
SAC Coding Challenge
3
68.9%
599
SAC '22 Code Challenge 1 P3 - That Pool
SAC Coding Challenge
7p
16.8%
87
SAC '22 Code Challenge 1 P2 - That Circle
SAC Coding Challenge
3
48.3%
247
DMOPC '21 Contest 6 P1 - Bigger Big Integer
DMOPC
3p
48.9%
500
BSSPC '21 S5 - James Solves His Tree Problems
Uncategorized
25p
2.1%
5
SAC '22 Code Challenge 2 P5 - Even Colouring
SAC Coding Challenge
10p
35.1%
75
SAC '22 Code Challenge 2 P3 - Rating Choices
SAC Coding Challenge
7
37.2%
79
SAC '22 Code Challenge 2 P2 - Cookie Sprinkler
SAC Coding Challenge
5
53.0%
105
SAC '22 Code Challenge 2 P1 - Calendar Management
SAC Coding Challenge
5
32.3%
94
An Animal Contest 3 P7 - Monkey Lasers
AAC
25p
7.8%
14
SAC '22 Code Challenge 3 P5 - Chat Corrections
SAC Coding Challenge
12p
15.8%
42
DMOPC '21 Contest 1 P5 - Perfect Cross
DMOPC
25p
8.6%
9
SAC '22 Code Challenge 3 P4 - Finding Friends
SAC Coding Challenge
15p
23.8%
64
SAC '22 Code Challenge 3 P3 - Bob Sort
SAC Coding Challenge
5p
25.0%
144
SAC '22 Code Challenge 3 P2 - Unicycle License
SAC Coding Challenge
5
41.6%
270
SAC '22 Code Challenge 3 P1 - Hair Hazards
SAC Coding Challenge
3
74.7%
514
An Animal Contest 3 P1 - Monkey Shopping
AAC
3
30.8%
1121
DMOPC '21 Contest 1 P3 - Mystery DAG
DMOPC
12
14.8%
111
DMOPC '21 Contest 1 P1 - Partial Game
DMOPC
5p
29.2%
437
An Animal Contest 3 P5 - Monkey Canoe
AAC
12p
18.3%
133
An Animal Contest 3 P6 - Monkey Station
AAC
17
13.8%
47
An Animal Contest 3 P4 - Monkey Mayhem
AAC
7
29.4%
232
SAC '22 Code Challenge 4 P1 - Obligatory Car Problem
SAC Coding Challenge
3
36.0%
210
DMOPC '21 Contest 1 P4 - Uneven Forest
DMOPC
20
27.7%
48
Cute String Merging
Uncategorized
15p
35.1%
30
DMOPC '21 Contest 2 P5 - Permutations
DMOPC
25p
15.4%
15
SAC '22 Code Challenge 4 P2 - Obligatory String Problem
SAC Coding Challenge
5
34.8%
143
SAC '22 Code Challenge 4 P5 - Obligatory Interactive Problem
SAC Coding Challenge
12p
15.1%
55
DMOPC '21 Contest 1 P6 - Tree Jumping
DMOPC
25p
24.7%
11
An Animal Contest 4 P6 - Cozy Cottages
AAC
20
16.7%
21
An Animal Contest 4 P5 - Neighbourly Neighbourhoods
AAC
12p
10.9%
44
An Animal Contest 4 P4 - Reindeer Racing
AAC
10p
6.8%
71
ICPC NEERC 2014 I - Improvements
ICPC
15
25.0%
3
ICPC NEERC 2014 K - Knockout Racing
ICPC
7
32.3%
9
ICPC NEERC 2012 L - Labyrinth of the Minotaur
ICPC
25
21.7%
11
ICPC NEERC 2012 C - Caravan Robbers
ICPC
10
9.6%
23
ICPC NWERC 2011 F - Pool Construction
ICPC
25
35.3%
6
ICPC NWERC 2011 A - Binomial Coefficients
ICPC
10
24.7%
16
ICPC NWERC 2011 C - Movie Collection
ICPC
10
54.5%
7
ICPC NWERC 2015 E - Elementary Math
ICPC
15
41.2%
4
ICPC NWERC 2015 A - Assigning Workstations
ICPC
10
31.4%
13
Olympic Scoring
Uncategorized
3
13.5%
127
Another Contest 8 Problem 1 - Trash Push
ACC
3
47.1%
333
Another Contest 8 Problem 2 - Unnecessary Trash Push
ACC
3
46.9%
268
Another Contest 8 Problem 4 - Up and Down
ACC
15
11.4%
46
Another Contest 8 Problem 5 - U-Turn Finesse
ACC
15
18.9%
81
Another Contest 8 Problem 3 - Replay Double Ignition
ACC
10
19.3%
130
Another Contest 8 Problem 6 - Unnecessary Forced Reverse Trash Finesse
ACC
25
16.3%
15
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