Problems Problem search Full text search Show problem types Category All --- ACM-ICPC APIO Bubble Cup CCC CCO CEOI Classics COCI CSPC Data Structure Tests DMOPC DWITE ECOO FHC Fun Math GCJ GFSSOC IOI JOI Mock CCC MWC Seasonal TLE TSOC Uncategorized VM7WC GoRandom Hot problems Python Infinite Loop CCC '16 S2 - Tandem Bicycle CCC '14 S1 - Party Invitation Lexicographically Least Substring Back To School '17: Physics CCC '14 S3 - The Geneva Confection « 1 2 3 4 5 6 ... 26 27 » Problem Category Points AC % ▾ Users ECOO '15 R3 P2 - Tiling Trouble ECOO 7p 100.0% 1 ECOO '14 R2 P3 - EasySweeper ECOO 10p 100.0% 1 ECOO '14 R3 P2 - Mothers and Daughters ECOO 7p 100.0% 1 ECOO '14 R3 P4 - Baby Talk ECOO 10p 100.0% 1 ECOO '13 R2 P1 - Upsetris ECOO 5p 100.0% 2 ECOO '13 R2 P2 - The Walking Dead ECOO 7p 100.0% 1 ECOO '13 R2 P3 - Last Robot Standing ECOO 7p 100.0% 1 ECOO '13 R3 P2 - Mutant Children ECOO 8p 100.0% 1 ECOO '12 R1 P2 - Decoding DNA ECOO 5p 100.0% 1 ECOO '12 R1 P4 - Boggled ECOO 7p 100.0% 1 ECOO '12 R2 P1 - Prime Time ECOO 5p 100.0% 3 ECOO '12 R2 P3 - Airport Radar ECOO 5p 100.0% 1 COCI '07 Contest 2 #3 Prva COCI 7 100.0% 2 COCI '07 Contest 4 #3 Lektira COCI 7 100.0% 2 COCI '07 Contest 6 #1 Parking COCI 5 100.0% 2 COCI '07 Contest 6 #2 Semafori COCI 7 100.0% 2 COCI '07 Regional #1 Platforme COCI 7 100.0% 2 COCI '08 Contest 1 #2 Ptice COCI 5 100.0% 4 COCI '08 Contest 2 #1 Kornislav COCI 5 100.0% 4 COCI '08 Contest 2 #3 Perket COCI 7 100.0% 1 COCI '08 Contest 2 #4 Svada COCI 10 100.0% 1 COCI '06 Contest 4 #5 Jogurt COCI 12p 100.0% 2 COCI '08 Contest 3 #3 Cross COCI 10 100.0% 1 COCI '08 Contest 3 #6 Najkraci COCI 25p 100.0% 1 COCI '08 Contest 5 #3 Jagoda COCI 7 100.0% 1 ICPC ECNA 2016 J - Yes, Yes, It's Nonograms ACM-ICPC 20 100.0% 1 ICPC ECNA 2000 B - Poly-polygonal Numbers ACM-ICPC 8 100.0% 1 ICPC ECNA 2000 C - Rational Approximation ACM-ICPC 12 100.0% 1 ICPC ECNA 2000 E - Checker's Check ACM-ICPC 10 100.0% 1 ICPC ECNA 2000 F - To Bet or Not To Bet ACM-ICPC 10 100.0% 1 COCI '08 Contest 1 #6 Krtica COCI 25p 92.3% 4 COCI '08 Contest 6 #6 Slicice COCI 30p 90.5% 6 COCI '08 Contest 2 #2 Reseto COCI 5 88.9% 5 CCO '12 P3 - Mhocskian Languages CCO 20p 87.5% 4 ECOO '14 R1 P2 - Orphan Black ECOO 5p 85.7% 5 COCI '07 Contest 4 #2 Veci COCI 5 83.3% 5 COCI '08 Contest 3 #2 Kemija COCI 5 83.3% 5 COCI '15 Contest 4 #3 Deathstar COCI 8p 82.7% 27 COCI '15 Contest 3 #1 Pot COCI 5 81.2% 43 CCC '04 S3 - Spreadsheet CCC 10 80.0% 3 ECOO '17 R1 P1 - Munch 'n' Brunch ECOO 5p 78.9% 34 ECOO '16 R3 P2 - Target Practice ECOO 10p 77.8% 6 COCI '07 Contest 2 #1 Bijile COCI 3 77.4% 19 ECOO '16 R3 P4 - Cuthbert's Calculator ECOO 12p 75.8% 2 ECOO '13 R2 P4 - Breaking Rocks ECOO 10p 75.0% 3 Ulam Spiral Uncategorized 7p 75.0% 14 COCI '08 Contest 3 #1 Pet COCI 5 75.0% 5 Vera and Outfits ACM-ICPC 3 74.4% 85 COCI '06 Contest 2 #4 Sjecišta COCI 7 73.3% 27 COCI '08 Contest 5 #6 Kruska COCI 10p 72.8% 4 « 1 2 3 4 5 6 ... 26 27 »