Home
Problems
>
Submissions
Users
Contests
>
Submissions
Learning
More
>
About
Contact
Status
Capture the Flag
Lessons
FAQ
Achievements
Site Archive
Log in
or
Sign up
This site works best with JavaScript enabled.
Problems
«
1
2
3
4
5
6
7
8
...
19
20
»
Problem search
Full text search
Has editorial
Show problem types
Category
All
---
CCC
CCO
Classics
Co-Ed
Competitive
ECOO
Girls Invitational
ICS3U
JDCC
LCC
Mock CCC
Uncategorized
Point range
Go
Random
Problem
Category ▴
Points
AC %
Users
ECOO '21 Practice P5 - Rockets
ECOO
7p
19.6%
4
ECOO '21 Practice P3 - Turin's Thrifty Threads
ECOO
5p
31.1%
12
ECOO '21 Practice P4 - Noisy Commute
ECOO
7p
13.6%
4
ECOO '21 Practice P6 - Eggs
ECOO
12p
31.0%
3
ECOO '21 Practice P2 - High Fiver!
ECOO
3p
66.2%
24
ECOO '21 Practice P1 - Tootsie Rolls!
ECOO
3p
58.0%
21
ECOO '21 P1 - Many Messages
ECOO
3p
59.1%
13
ECOO '21 P2 - DNA Derren
ECOO
3p
72.7%
8
ECOO '21 P3 - Quintessential Questions
ECOO
3p
43.8%
7
ECOO '21 P4 - Chris' Candy
ECOO
7p
100.0%
2
ECOO '21 P5 - Waldwick's Walk
ECOO
17p
0.0%
0
ECOO '21 P6 - Problematic Pathways
ECOO
30p
0.0%
0
Girls Invitational '18 S1 - Biology Cheat Sheet
Girls Invitational
5
18.8%
6
Girls Invitational '18 S2 - Amazing Maze
Girls Invitational
10
66.7%
8
Girls Invitational '18 S3 - Unknown Words
Girls Invitational
7
24.5%
11
Girls Invitational '18 S4 - Reppoh Ecarg
Girls Invitational
12
28.1%
9
Girls Invitational '18 S5 - Mapping the Hill
Girls Invitational
12
2.1%
2
Girls Invitational '18 J1 - Not Not Very Very
Girls Invitational
3
43.6%
38
Girls Invitational '18 J2 - Munara’s Magnificent Math Machine
Girls Invitational
3
63.2%
36
Girls Invitational '18 J3 - Ski Chair Challenge
Girls Invitational
5
36.4%
15
Girls Invitational '19 S5 - Dodgeball Club
Girls Invitational
15p
39.1%
10
Girls Invitational '19 S4 - Miniature Sudoku
Girls Invitational
12p
22.8%
15
Girls Invitational '19 J3 - Essay Scores
Girls Invitational
5p
31.1%
29
Girls Invitational '18 J4 - Elections in Ada Land
Girls Invitational
5
25.8%
2
Girls Invitational '18 J5 - Kstar and Party
Girls Invitational
7
26.0%
18
Girls Invitational '19 S2 - Road Trip
Girls Invitational
5p
39.3%
23
Girls Invitational '19 S3 - GOTO
Girls Invitational
7p
11.4%
7
Girls Invitational '19 J5 - Divisiblity
Girls Invitational
7p
18.3%
9
Girls Invitational '19 J4 - Who Will Win?
Girls Invitational
5p
24.2%
17
Girls Invitational '19 J2 - Emily Who
Girls Invitational
3p
38.7%
63
Girls Invitational '19 J1 - Ecalevol Triplets
Girls Invitational
3p
18.6%
40
Tootsie Rolls
Girls Invitational
12p
28.6%
3
A Rotation Problem
ICS3U
5
27.0%
69
Phone Phun
ICS3U
3p
41.5%
62
'A' String
ICS3U
10p
3.3%
7
Maintaining an Array
ICS3U
7p
10.4%
17
Peter and Array
ICS3U
5p
45.0%
4
Rectangular Reckonings
ICS3U
5p
37.2%
32
ssheep
ICS3U
5p
18.0%
36
Number Bicycle
ICS3U
5p
18.8%
25
Count by X
ICS3U
3
69.5%
53
Cast to Integer
ICS3U
3p
47.7%
81
Seeing Triple
ICS3U
1p
49.5%
136
Even and Odd
ICS3U
3p
47.7%
55
Filling the Alphabet
ICS3U
3
33.3%
11
Candy Totals
ICS3U
3
72.1%
97
Tracy and Bakeries
ICS3U
7p
13.8%
10
Factorial Division
ICS3U
3p
41.1%
32
Largest Fraction
ICS3U
5
36.0%
27
Array Mean
ICS3U
3p
35.2%
35
«
1
2
3
4
5
6
7
8
...
19
20
»