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Random
Hot problems
COCI '08 Contest 3 #6 Najkraci
APIO '10 P1 - Commando
CCC '24 J5 - Harvest Waterloo
TSS Club Fair 2017 Problem B
CCC '24 J4 - Troublesome Keys
CCC '04 S2 - TopYodeller
DWITE '10 R3 #3 - Dominos Tiling
Problem
Category
Points
AC %
Users ▾
Hello, World!
Uncategorized
3
56.1%
12238
CCC '13 J1 - Next in line
CCC
3
62.3%
12085
CCC '07 J1 - Who is in the Middle?
CCC
3
47.0%
9182
CCC '15 J1 - Special Day
CCC
3
36.9%
8393
A Plus B
Uncategorized
3p
48.7%
8043
CCC '14 J1 - Triangle Times
CCC
3
32.9%
7482
CCC '06 J1 - Canadian Calorie Counting
CCC
3
27.4%
7227
CCC '15 J2 - Happy or Sad
CCC
3
37.1%
7080
CCC '19 J1 - Winning Score
CCC
3
50.8%
7022
CCC '18 J1 - Telemarketer or not?
CCC
3
40.1%
6894
CCC '11 J1 - Which Alien?
CCC
3
35.6%
6391
CCC '11 S2 - Multiple Choice
CCC
3
55.1%
6284
CCC '04 J1 - Squares
CCC
3
32.5%
6135
CCC '12 J1 - Speed fines are not fine!
CCC
3
30.8%
5790
CCC '11 S1 - English or French?
CCC
5
35.6%
5779
DMOPC '15 Contest 7 P2 - Not a Wall of Text
DMOPC
3p
50.0%
5692
CCC '18 J2 - Occupy parking
CCC
3
53.4%
5683
CCC '08 J1 - Body Mass Index
CCC
3
34.8%
5626
CCC '17 J1 - Quadrant Selection
CCC
3
60.6%
5587
CCC '14 J2 - Vote Count
CCC
3
44.5%
5375
DMOPC '14 Contest 5 P1 - Core Drill
DMOPC
3p
58.5%
5011
CCC '13 J2 - Rotating letters
CCC
3
45.0%
4841
CCC '16 J1 - Tournament Selection
CCC
3
41.2%
4717
WC '16 Contest 1 J1 - A Spooky Season
Woburn Challenge
3
47.8%
4637
CCC '12 J2 - Sounds fishy!
CCC
3
33.8%
4595
CCC '17 J2 - Shifty Sum
CCC
3
54.3%
4583
CCC '00 S1 - Slot Machines
CCC
5
27.3%
4529
CCC '14 J3 - Double Dice
CCC
3
56.3%
4489
WC '15 Contest 2 J1 - A New Hope
Woburn Challenge
3
39.9%
4174
CCC '10 J1 - What is n, Daddy?
CCC
3
30.8%
4023
CCC '20 J1 - Dog Treats
CCC
3
56.1%
4018
CCC '04 J3 - Smile with Similes
CCC
3
57.8%
3974
CCC '19 S1 - Flipper
CCC
3p
46.1%
3955
CCC '13 S1 - From 1987 to 2013
CCC
5
45.8%
3925
CCC '02 J2 - AmeriCanadian
CCC
3
25.0%
3886
CCC '15 S1 - Zero That Out
CCC
3
51.0%
3881
Sorting
Classics
3
47.2%
3881
WC '17 Contest 1 J2 - How's the Weather?
Woburn Challenge
3
68.6%
3779
CCC '20 J2 - Epidemiology
CCC
3
27.1%
3711
CCC '09 J1 - ISBN
CCC
3
47.3%
3696
CCC '18 S1 - Voronoi Villages
CCC
3p
33.5%
3573
CCC '14 S1 - Party Invitation
CCC
5
47.1%
3527
CCC '04 J2 - Terms of Office
CCC
3
37.4%
3514
CCC '16 S2 - Tandem Bicycle
CCC
5p
53.3%
3505
CCC '08 J2 - Do the Shuffle
CCC
3
43.3%
3440
CCC '19 J2 - Time to Decompress
CCC
3
52.4%
3331
List Minimum
Uncategorized
3
49.8%
3287
CCC '07 J3 - Deal or No Deal Calculator
CCC
3
33.1%
3258
CCC '16 J2 - Magic Squares
CCC
3
34.5%
3251
CCC '17 S1 - Sum Game
CCC
3
47.4%
3210
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