Round 1A: Haircut
2929 correct small sets and 1715 correct large sets. View problem statement or contest analysis.
Compact solutions
 Marte in Python (321 B) giguru in Ruby (328 B) ZhouYuChen in Python (331 B) priyam in C++ (341 B) jilljenn in Python (362 B) sampriti in C++ (363 B) albert.qed.ai in Python (422 B) lpetru in Visual Basic (442 B) | asdsteven in Haskell (460 B) yyuho in Python (466 B) Terence in Python (468 B) rusher in Python (468 B) UsedToBe in C++ (472 B) ynasu in Python (477 B) luca.wehrstedt in Python (492 B) zackblick in C++ (495 B) | ashpsycho in C++ (512 B) qiukun in Python (513 B) Eureka6174 in Python (526 B) torenord in Python (526 B) dhanpath in Python (526 B) nomeaning in Ruby (528 B) triton21 in Python (531 B) OptimusNishant in Python (532 B) |
Solved in...
| C++ (3061 sets) Java (606 sets) Python (577 sets) C# (113 sets) C (58 sets) Haskell (50 sets) Ruby (35 sets) Scala (23 sets) Go (14 sets) OCaml (13 sets) MATLAB (12 sets) | JavaScript (8 sets) Perl (8 sets) PHP (8 sets) D (7 sets) Lisp (6 sets) Visual Basic (5 sets) Racket (4 sets) Rust (4 sets) Dart (3 sets) F# (3 sets) Julia (3 sets) | Swift (3 sets) Lua (2 sets) Pascal (2 sets) Ceylon (1 set) Clojure (1 set) Groovy (1 set) J (1 set) Octave (1 set) R (1 set) TCL (1 set) |
Submission Origin
| China (624 contestants) United States (450 contestants) Japan (237 contestants) India (184 contestants) Russia (121 contestants) Taiwan (111 contestants) Canada (108 contestants) South Korea (82 contestants) Brazil (71 contestants) Australia (61 contestants) Poland (47 contestants) France (47 contestants) Hong Kong (46 contestants) Thailand (45 contestants) Ukraine (42 contestants) Singapore (42 contestants) Germany (38 contestants) Indonesia (37 contestants) Bangladesh (35 contestants) Vietnam (29 contestants) United Kingdom (25 contestants) Egypt (25 contestants) Argentina (24 contestants) Belarus (23 contestants) Colombia (19 contestants) Slovakia (18 contestants) Mexico (18 contestants) Hungary (17 contestants) Czech Republic (15 contestants) New Zealand (14 contestants) | Iran (13 contestants) Turkey (12 contestants) Spain (12 contestants) Romania (12 contestants) Portugal (12 contestants) Israel (12 contestants) Bulgaria (12 contestants) Netherlands (10 contestants) Lithuania (10 contestants) Italy (10 contestants) Finland (10 contestants) Belgium (10 contestants) Sweden (9 contestants) Peru (9 contestants) Philippines (8 contestants) Venezuela (7 contestants) Serbia (6 contestants) Kazakhstan (6 contestants) Greece (6 contestants) Chile (6 contestants) Switzerland (5 contestants) Lebanon (5 contestants) Bolivia (5 contestants) South Africa (4 contestants) Latvia (4 contestants) Georgia (4 contestants) Austria (4 contestants) Slovenia (3 contestants) Malaysia (3 contestants) Kyrgyzstan (3 contestants) | Uzbekistan (2 contestants) Uruguay (2 contestants) Unknown or Invalid Region (2 contestants) Tunisia (2 contestants) Sri Lanka (2 contestants) Saudi Arabia (2 contestants) Norway (2 contestants) Moldova (2 contestants) Luxembourg (2 contestants) Iceland (2 contestants) Guatemala (2 contestants) Estonia (2 contestants) U.S. Virgin Islands (1 contestant) Tajikistan (1 contestant) Pakistan (1 contestant) Morocco (1 contestant) Mongolia (1 contestant) Madagascar (1 contestant) Macedonia (1 contestant) Macau (1 contestant) Jamaica (1 contestant) Greenland (1 contestant) Ethiopia (1 contestant) Dominican Republic (1 contestant) Denmark (1 contestant) Cyprus (1 contestant) Croatia (1 contestant) Cayman Islands (1 contestant) Armenia (1 contestant) Antarctica (1 contestant) |