Home
Problems
Submissions
Users
Contests
About
>
Status
Tips
API
Github
Log in
or
Sign up
This site works best with JavaScript enabled.
Problems
«
1
2
...
56
57
58
59
60
61
...
100
101
»
Problem search
Full text search
Has editorial
Show problem types
Category
All
---
AAC
ACC
APIO
Balkan OI
Baltic OI
BlueBook
Brazil OI
Bubble Cup
Bulgarian OI
CCC
CCO
CEOI
China NOI
Classics
COCI
CSPC
CTF
Data Structure Tests
DMOPC
DWITE
ECOO
EGOI
ESOI
FHC
Fun Math
GFSSOC
Google Code Jam
Google Hash Code
Google Kick Start
ICPC
IOI
JOI
Mock CCC
Mock CCO
MWC
Olympiads School
POI
SAC Coding Challenge
Seasonal
SIUCF
Taiwan NOI
TLE
TSOC
Uncategorized
VM7WC
WAC
Waterloo Local
Woburn Challenge
YAC
Point range
Go
Random
Hot problems
Singularity Cup P2 - Reverse Substring Partitioning
CCC '20 S4 - Swapping Seats
CCC '24 J4 - Troublesome Keys
CCC '20 J4 - Cyclic Shifts
Strict Evaluation
CCC '24 J3 - Bronze Count
Singularity Cup P1 - Maximum Permutation Product
Problem
Category
Points
AC %
Users
Google Code Jam '17 Round 1A Problem C - Play the Dragon
Google Code Jam
25p
23.5%
1
Google Code Jam '18 Qualification Round Problem A - Saving The Universe Again
Google Code Jam
5p
56.3%
8
Google Code Jam '18 Qualification Round Problem B - Trouble Sort
Google Code Jam
7p
18.6%
32
Google Code Jam '18 Round 1A Problem A - Waffle Choppers
Google Code Jam
10p
62.5%
5
Google Code Jam '18 Round 1A Problem B - Bit Party
Google Code Jam
10p
24.1%
5
Google Code Jam '18 Round 1A Problem C - Edgy Baking
Google Code Jam
17p
27.3%
3
Google Code Jam '19 Qualification Round Problem C - Cryptopangrams
Google Code Jam
10p
15.7%
5
Google Code Jam '19 Round 1A Problem C - Alien Rhyme
Google Code Jam
12p
66.7%
4
Google Code Jam '20 Qualification Round Problem A - Vestigium
Google Code Jam
3p
50.0%
8
Google Code Jam '20 Qualification Round Problem B - Nesting Depth
Google Code Jam
5p
54.5%
6
Google Code Jam '20 Round 1A Problem C - Square Dance
Google Code Jam
10p
35.3%
5
Google Code Jam '21 Qualification Round Problem A - Reversort
Google Code Jam
3p
63.9%
20
Google Code Jam '21 Qualification Round Problem B - Moons and Umbrellas
Google Code Jam
7p
14.0%
6
Google Code Jam '21 Qualification Round Problem C - Reversort Engineering
Google Code Jam
7p
17.9%
14
Google Code Jam '21 Qualification Round Problem E - Cheating Detection
Google Code Jam
15p
15.0%
3
Google Code Jam '21 Round 1A Problem A - Append Sort
Google Code Jam
7p
34.8%
6
Google Code Jam '21 Round 1A Problem B - Prime Time
Google Code Jam
17p
23.7%
7
Google Code Jam '22 Qualification Round Problem A - Punched Cards
Google Code Jam
3p
40.4%
19
Google Code Jam '22 Qualification Round Problem B - 3D Printing
Google Code Jam
5p
65.1%
19
Google Code Jam '22 Qualification Round Problem C - d1000000
Google Code Jam
5p
46.2%
33
Google Code Jam '22 Qualification Round Problem D - Chain Reactions
Google Code Jam
12p
31.1%
9
Google Code Jam '22 Qualification Round Problem E - Twisty Little Passages
Google Code Jam
20p
63.6%
5
Google Code Jam '22 Round 1A Problem A - Double or One Thing
Google Code Jam
5p
39.3%
9
Google Code Jam '22 Round 1A Problem C - Weightlifting
Google Code Jam
20p
70.0%
5
Google Code Jam '22 Round 1B Problem A - Pancake Deque
Google Code Jam
5p
42.4%
9
Google Code Jam '22 Round 1B Problem B - Controlled Inflation
Google Code Jam
10p
70.0%
5
Google Code Jam '22 Round 1C Problem A - Letter Blocks
Google Code Jam
10p
20.8%
5
Google Code Jam '22 Round 1C Problem B - Squary
Google Code Jam
10p
25.0%
6
Google Code Jam '22 Round 1C Problem C - Intranets
Google Code Jam
30p
0.0%
0
Google Code Jam '22 Round 2 Problem A - Spiraling Into Control
Google Code Jam
12p
50.0%
7
Google Code Jam '22 Round 2 Problem B - Pixelated Circle
Google Code Jam
25p
60.0%
3
Google Code Jam '22 Round 2 Problem C - Saving the Jelly
Google Code Jam
30p
41.7%
3
Google Code Jam '22 Round 2 Problem D - I, O Bot
Google Code Jam
35p
25.0%
1
Google Code Jam '22 Round 3 Problem B - Duck, Duck, Geese
Google Code Jam
20p
50.0%
4
Google Code Jam '22 Round 3 Problem C - Mascot Maze
Google Code Jam
17p
66.7%
3
Geography Class
Uncategorized
5p
14.3%
69
Troubling Triangles
Uncategorized
7
28.5%
464
GFSS Christmas Challenge P1 - Arithmetic Operators
GFSSOC
3
70.1%
201
GFSS Christmas Challenge P2 - Height Inspection
GFSSOC
3
61.6%
83
GFSS Christmas Challenge P3 - Candy Distribution
GFSSOC
5p
29.6%
82
GFSS Christmas Challenge P4 - Coal Counting
GFSSOC
7p
28.4%
80
GFSSOC '17 J1 - Ramen and Studying
GFSSOC
3p
20.5%
210
GFSSOC '17 J2 - Admission Average
GFSSOC
3p
40.1%
412
GFSSOC '17 J3 - AIF Essay
GFSSOC
5
25.4%
77
GFSSOC '17 J4 - Top Courses
GFSSOC
7
11.7%
45
GFSSOC '17 J5 - Choosing Extracurriculars
GFSSOC
7
30.5%
53
GFSSOC '17 S1 - Path to Waterloo
GFSSOC
7
39.0%
162
GFSSOC '17 S2 - Ace is Base
GFSSOC
7p
19.5%
39
GFSSOC '17 S3 - Zhany Zhanbies
GFSSOC
12
4.8%
14
GFSSOC '17 S4 - First Ace
GFSSOC
10
12.5%
36
«
1
2
...
56
57
58
59
60
61
...
100
101
»