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Problem Category Points AC % Users ▾
CCC '22 S3 - Good Samples CCC 10p 18.3% 652
DWITE '07 R1 #1 - Vanilla Primes DWITE 3 24.6% 648
Longest Increasing Subsequence Uncategorized 7 29.4% 647
Another Contest 6 Problem 2 - A Plus B (Easy) ACC 0p 37.6% 646
CCC '10 S3 - Firehose CCC 15p 18.2% 645
Facebook Hacker Cup '15 Round 1 P1 - Homework FHC 10 34.0% 642
COCI '09 Contest 1 #1 Note COCI 3 52.5% 640
CCCJQR P1 Seasonal 0 72.6% 639
COCI '08 Contest 3 #1 Pet COCI 5 57.3% 632
Mock CCC '19 Contest 1 S1 - Pusheen's Report Card Mock CCC 3p 41.3% 630
Another Contest 5 Problem 1 - Goat Fence ACC 3p 27.0% 629
CCCHK '08 J3 - Phone book CCC 5p 34.7% 623
Educational DP Contest AtCoder E - Knapsack 2 Uncategorized 7 23.5% 623
CCC '09 S5 - Wireless CCC 12p 34.8% 621
CCC '00 S3 - Surfing CCC 7 17.5% 620
DMOPC '17 Contest 1 P1 - Fujō Neko DMOPC 5p 25.8% 620
CCO '14 P1 - Troyangles CCO 10p 37.8% 619
COCI '07 Contest 2 #1 Bijele COCI 3 64.3% 619
ECOO '18 R1 P1 - Willow's Wild Ride ECOO 5p 27.4% 619
Chocolate Bar Uncategorized 5 51.8% 619
Lexicographically Least Substring Uncategorized 5 46.0% 616
CCC '04 S3 - Spreadsheet CCC 10 27.0% 614
CCCHK '15 J3 - Queens can't attack me! CCC 5 50.6% 611
DMOPC '14 Contest 2 P3 - Sawmill DMOPC 7p 36.8% 602
Mock CCC '18 Contest 3 J1 - A Sum Problem Mock CCC 3p 61.2% 602
SAC '22 Code Challenge 1 P1 - That Teacher SAC Coding Challenge 3 68.9% 599
Mock CCC '20 Contest 1 J2 - A Simplex Problem Mock CCC 3p 52.0% 595
Hello, World! (Hard) Uncategorized 0 6.4% 592
COCI '06 Contest 3 #1 Patuljci COCI 5 60.0% 591
Back From Summer '17 P2: Crayola Lightsaber Seasonal 7 25.2% 589
An Animal Contest 5 P1 - Bamboo Cookies AAC 3p 47.2% 587
COCI '08 Contest 2 #3 Perket COCI 7 47.2% 585
DMOPC '19 Contest 6 P0 - Trivial Math DMOPC 3 64.8% 585
BlueBook - Find the Character BlueBook 3 38.8% 585
CCC '21 S4 - Daily Commute CCC 12p 26.0% 585
COCI '06 Contest 1 #4 Slikar COCI 10 24.2% 579
CCC '16 S5 - Circle of Life CCC 20p 22.6% 577
CCC '05 J4 - Cross Spiral CCC 7p 32.6% 577
CCC '18 S4 - Balanced Trees CCC 15p 16.8% 574
BlueBook - Interest BlueBook 3 28.5% 573
CCC '24 J1 - Conveyor Belt Sushi CCC 3p 77.6% 570
CCC '96 S4 - When in Rome CCC 10 33.0% 569
CCO '18 P1 - Geese vs. Hawks CCO 10p 37.6% 569
Mock CCC '18 Contest 5 J1 - Looking for the CCC Mock CCC 3p 44.6% 567
Mock CCC '22 Contest 2 J2 - Snowboarding Championship Mock CCC 3 35.7% 565
BlueBook - Prime BlueBook 3 32.5% 562
DMOPC '18 Contest 1 P0 - Sorting DMOPC 3 46.7% 561
Mock CCC '23 Contest 1 J2 - Healthy Schedule Mock CCC 3 38.3% 560
WC '17 Contest 1 J1 - Canadian Accent Woburn Challenge 3 66.0% 559
DMOPC '16 Contest 4 P1 - Fast Exponents DMOPC 5p 26.3% 557