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Hot problems
WC '01 P3 - Back to the Future
DWITE '10 R3 #3 - Dominos Tiling
A Math Contest P5 - Good Arrays
GFSSOC '15 Winter S1 - OR-deal
Counting Subsequences
DMOPC '21 Contest 8 P1 - Peanut Planning
CCC '13 S1 - From 1987 to 2013
Problem
Category
Points
AC %
Users ▾
WC '18 Contest 3 J1 - An Honest Day's Work
Woburn Challenge
3p
57.5%
3179
CCC '21 J1 - Boiling Water
CCC
3p
53.7%
3171
CCC '19 J3 - Cold Compress
CCC
5
46.2%
3166
CCC '18 J3 - Are we there yet?
CCC
3
55.6%
3114
CCC '03 S1 - Snakes and Ladders
CCC
5
20.5%
3108
CCC '06 J2 - Roll the Dice
CCC
3
27.1%
3042
CCC '13 J4 - Time on task
CCC
5
44.5%
3017
CCC '05 J2 - RSA Numbers
CCC
3
40.8%
2981
CCC '22 J1 - Cupcake Party
CCC
3
55.3%
2932
CCC '12 J3 - Icon Scaling
CCC
3
51.3%
2883
CCC '11 J3 - Sumac Sequences
CCC
5
43.3%
2878
CCC '01 J1 - Dressing Up
CCC
3
48.2%
2877
CCC '14 S2 - Assigning Partners
CCC
5
33.3%
2849
CCC '17 S2 - High Tide, Low Tide
CCC
5
27.8%
2846
DMOPC '16 Contest 1 P0 - C.C. and Cheese-kun
DMOPC
3p
37.7%
2817
CCC '14 S3 - The Geneva Confection
CCC
7p
26.4%
2815
CCC '18 S2 - Sunflowers
CCC
5p
39.5%
2812
CCC '21 J2 - Silent Auction
CCC
3p
51.2%
2759
16 BIT S/W ONLY
Uncategorized
3
36.9%
2699
CCC '22 J2 - Fergusonball Ratings
CCC
3
47.5%
2682
COCI '06 Contest 5 #1 Trik
COCI
3
52.3%
2609
CCC '16 J3 - Hidden Palindrome
CCC
5
45.9%
2562
CCC '21 S1 - Crazy Fencing
CCC
5p
47.7%
2560
CCC '01 J2 - Mod Inverse
CCC
3
42.9%
2539
CCC '21 J3 - Secret Instructions
CCC
5p
36.2%
2538
CCC '00 S2 - Babbling Brooks
CCC
7
34.1%
2537
An Animal Contest 1 P1 - Alpaca Shapes
AAC
3p
40.1%
2430
COCI '16 Contest 1 #1 Tarifa
COCI
3
58.5%
2427
CCC '12 J4 - Big Bang Secrets
CCC
3
59.2%
2409
CCC '10 J5 - Knight Hop
CCC
7
36.5%
2407
WC '17 Contest 3 J3 - Uncrackable
Woburn Challenge
5
28.9%
2396
CCC '17 J3 - Exactly Electrical
CCC
3p
29.9%
2379
CCC '20 J3 - Art
CCC
3p
42.9%
2367
CCC '05 J3 - Returning Home
CCC
5
37.2%
2364
CCC '19 S2 - Pretty Average Primes
CCC
5p
25.9%
2360
Boolean
Uncategorized
3
50.4%
2353
CCC '07 S1 - Federal Voting Age
CCC
3
36.2%
2330
CCC '03 J1 - Trident
CCC
3
28.6%
2327
CCC '00 S4 - Golf
CCC
7
24.5%
2309
CCC '16 S1 - Ragaman
CCC
3p
29.7%
2307
CCC '20 J4 - Cyclic Shifts
CCC
5p
45.7%
2292
CCC '07 J2 - I Speak TXTMSG
CCC
3
21.7%
2290
CCC '05 S1 - Snow Calls
CCC
5
43.3%
2278
CCC '15 J3 - Rövarspråket
CCC
5p
38.5%
2269
CCC '21 S2 - Modern Art
CCC
7p
29.0%
2254
Scroll
Seasonal
0
55.5%
2248
CCC '12 S1 - Don't pass me the ball!
CCC
3
56.3%
2241
Next Prime
Classics
5
19.8%
2185
CCC '08 S1 - It's Cold Here!
CCC
5
37.4%
2181
CCC '22 S1 - Good Fours and Good Fives
CCC
5p
39.4%
2133
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