Round 2

  1. Problem A: Ticket Swapping.
  2. Problem B: Many Prizes.
  3. Problem C: Erdős–Szekeres.
  4. Problem D: Multiplayer Pong.

Language Popularity

Problem AProblem BProblem CProblem DSetsPeople
LanguageSLSLSLSLTotalAll / Adv / Perfect
C198119425325 / 5
C#2981817617937 / 3
C++113061784167329815337121315 / 393
Java202871341163816593233 / 61
Python142701139910611442197 / 45
Clojure21142
D443311164 / 2
Go11132
Haskell118873413 / 4
JavaScript222
Lua21142
MATLAB222
OCaml212163 / 1
Pascal10798524112 / 6
Perl4154
PHP1122
Ruby12521212315 / 2
Scala4374
Dart1121
Lisp1121
Xtend1121
Total157982011499383641821150341825 / 500

Legend: advancing to next round, perfect score.

Graphs