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Random
Hot problems
CCC '24 S2 - Heavy-Light Composition
SAC '22 Code Challenge 5 P2 - Querying Extensions
Max's Anger Contest Series 2 P2 - Password Anger
CCC '12 S2 - Aromatic Numbers
The Cosmic Era P2 - Uneven Sand
CCC '20 J4 - Cyclic Shifts
CCC '13 J4 - Time on task
Problem
Category
Points
AC %
Users ▴
CCC '12 J4 - Big Bang Secrets
CCC
3
59.3%
2402
CCC '10 J5 - Knight Hop
CCC
7
36.6%
2405
CCC '21 J3 - Secret Instructions
CCC
5p
36.1%
2516
CCC '00 S2 - Babbling Brooks
CCC
7
34.1%
2533
CCC '01 J2 - Mod Inverse
CCC
3
42.9%
2534
CCC '16 J3 - Hidden Palindrome
CCC
5
45.9%
2554
CCC '21 S1 - Crazy Fencing
CCC
5p
47.7%
2558
CCC '22 J2 - Fergusonball Ratings
CCC
3
47.5%
2676
CCC '21 J2 - Silent Auction
CCC
3p
51.2%
2757
CCC '18 S2 - Sunflowers
CCC
5p
39.5%
2807
CCC '14 S3 - The Geneva Confection
CCC
7p
26.4%
2809
CCC '17 S2 - High Tide, Low Tide
CCC
5
27.8%
2843
CCC '14 S2 - Assigning Partners
CCC
5
33.3%
2844
CCC '11 J3 - Sumac Sequences
CCC
5
43.3%
2871
CCC '01 J1 - Dressing Up
CCC
3
48.2%
2873
CCC '12 J3 - Icon Scaling
CCC
3
51.3%
2881
CCC '22 J1 - Cupcake Party
CCC
3
55.5%
2924
CCC '05 J2 - RSA Numbers
CCC
3
40.8%
2976
CCC '13 J4 - Time on task
CCC
5
44.5%
3015
CCC '06 J2 - Roll the Dice
CCC
3
27.1%
3036
CCC '03 S1 - Snakes and Ladders
CCC
5
20.5%
3106
CCC '18 J3 - Are we there yet?
CCC
3
55.9%
3110
CCC '19 J3 - Cold Compress
CCC
5
46.2%
3158
CCC '21 J1 - Boiling Water
CCC
3p
53.7%
3164
CCC '17 S1 - Sum Game
CCC
3
47.3%
3206
CCC '16 J2 - Magic Squares
CCC
3
34.6%
3250
CCC '07 J3 - Deal or No Deal Calculator
CCC
3
33.0%
3251
CCC '19 J2 - Time to Decompress
CCC
3
52.4%
3328
CCC '08 J2 - Do the Shuffle
CCC
3
43.2%
3432
CCC '16 S2 - Tandem Bicycle
CCC
5p
53.2%
3500
CCC '04 J2 - Terms of Office
CCC
3
37.4%
3514
CCC '14 S1 - Party Invitation
CCC
5
47.1%
3524
CCC '18 S1 - Voronoi Villages
CCC
3p
33.5%
3565
CCC '09 J1 - ISBN
CCC
3
47.3%
3691
CCC '20 J2 - Epidemiology
CCC
3
27.1%
3701
CCC '02 J2 - AmeriCanadian
CCC
3
25.0%
3879
CCC '15 S1 - Zero That Out
CCC
3
51.0%
3879
CCC '13 S1 - From 1987 to 2013
CCC
5
45.8%
3923
CCC '19 S1 - Flipper
CCC
3p
46.0%
3954
CCC '04 J3 - Smile with Similes
CCC
3
57.8%
3971
CCC '20 J1 - Dog Treats
CCC
3
56.1%
4012
CCC '10 J1 - What is n, Daddy?
CCC
3
30.8%
4020
CCC '14 J3 - Double Dice
CCC
3
56.3%
4487
CCC '00 S1 - Slot Machines
CCC
5
27.3%
4523
CCC '17 J2 - Shifty Sum
CCC
3
54.3%
4581
CCC '12 J2 - Sounds fishy!
CCC
3
33.8%
4588
CCC '16 J1 - Tournament Selection
CCC
3
41.2%
4715
CCC '13 J2 - Rotating letters
CCC
3
45.0%
4837
CCC '14 J2 - Vote Count
CCC
3
44.5%
5371
CCC '17 J1 - Quadrant Selection
CCC
3
60.6%
5584
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