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Problem Category Points AC % Users ▴
COCI '10 Contest 1 #3 Sretan COCI 7 40.3% 53
COCI '11 Contest 4 #1 Kino COCI 3p 52.2% 53
COCI '12 Contest 3 #2 Poredak COCI 5 23.5% 53
DMOPC '21 Contest 3 P3 - Hopping Frogs DMOPC 15p 21.9% 53
Baltic OI '11 P2 - Ice Cream Baltic OI 5p 35.7% 53
Yet Another Contest 6 P4 - No More Nails! YAC 12p 11.3% 53
NOIP '18 Junior P1 - Title Statistics China NOI 3p 67.0% 53
Mock ECOO '14 P1 - Do You Want to Build a Snowman? ECOO 12 8.5% 54
Halloween '14 P4 - Fox Girls Seasonal 20p 7.0% 54
More German Nouns Uncategorized 7 9.2% 54
COCI '14 Contest 2 #6 Norma COCI 25p 16.7% 54
STNBD P6 - Terminus Est Uncategorized 35p 11.9% 54
MWC '15 #4 P1: Love Guru 2 MWC 3 31.7% 54
MWC '15 #4 P2: Data Formatting MWC 5 51.7% 54
Back To School '16: Times Table Seasonal 17p 9.6% 54
IOI '16 P4 - Paint by Numbers IOI 15p 12.4% 54
COCI '08 Contest 5 #4 Lubenica COCI 12p 19.7% 54
DWITE '08 R1 #1 - LaNDscAPE ii DWITE 3 64.1% 54
DWITE '08 R4 #3 - Secret party DWITE 7 37.9% 54
TLE '17 Contest 5 P3 - Willson and Factorization TLE 7p 36.8% 54
Another Contest 3 Problem 4 - Range Updates and Range Queries ACC 15 14.2% 54
Mock CCC '19 Contest 1 S3 - Pusheen Eats Tuna Sashimi and Tuna Nigiri Mock CCC 12p 5.2% 54
COCI '18 Contest 1 #4 Strah COCI 15p 58.3% 54
DMOPC '20 Contest 7 P4 - Mimi and Carrots II DMOPC 17p 24.1% 54
CCO '97 P2 - Alien Invasion CCO 10 43.4% 54
VPEX P5 - Points Redistribution Uncategorized 20p 24.4% 54
CCO '00 P5 - Millikan's Oil Droplet Experiment CCO 7 22.3% 54
COCI '19 Contest 1 #1 Trol COCI 5p 21.9% 54
COCI '19 Contest 4 #4 Klasika COCI 17p 12.9% 54
IOI '95 Practice Task 2 - Word Chains IOI 12 43.9% 54
WC '95 P1 - Coded Message Woburn Challenge 7 8.9% 54
WC '18 Finals J2 - Script Doctor Woburn Challenge 5p 29.1% 54
IOI '20 P2 - Connecting Supertrees IOI 15p 13.8% 54
COCI '16 Contest 6 #1 H-indeks COCI 5p 38.7% 54
COCI '11 Contest 5 #1 Križaljka COCI 3p 46.7% 54
Multiplication Madness Uncategorized 7p 30.8% 54
CCO '21 P4 - Travelling Merchant CCO 25p 19.0% 54
SGS Programming Challenge P2 - Vending Machine in Lunch Uncategorized 10p 12.2% 54
DMOPC '22 Contest 5 P6 - Threes and Twos DMOPC 20p 20.0% 54
CCO '23 P4 - Flip it and Stick it CCO 17p 6.8% 54
DMOPC '23 Contest 1 P4 - Wandering Walk DMOPC 17p 6.4% 54
Richmond Green P3 - ABBA Uncategorized 10p 31.3% 55
COCI '15 Contest 1 #4 Topovi COCI 12p 51.3% 55
COCI '16 Contest 1 #2 Jetpack COCI 7 24.5% 55
Bubble Cup V8 B Bribes Bubble Cup 17 18.4% 55
CCO '17 P2 - Cartesian Conquest CCO 20p 9.4% 55
RTE '16 J2 - Guidance Counselling Uncategorized 7p 17.6% 55
DMOPC '18 Contest 3 P3 - Bob and Math Class DMOPC 10p 15.1% 55
IOI '09 P7 - Regions IOI 20p 11.8% 55
DMOPC '18 Contest 6 P2 - Enantiomers DMOPC 7 16.9% 55