codeforces
Solutions organized by contest type, round number, and problem letter.
Structure
<contest-type>/
round-<NNN>/
<letter>/
solution.<ext>
Contest Types
div1/— Codeforces Round, Division 1div2/— Codeforces Round, Division 2div3/— Codeforces Round, Division 3div4/— Codeforces Round, Division 4educational/— Educational Codeforces Roundglobal/— Codeforces Global Round
Problem letters run A (easiest) → F/G (hardest) within each round.
Indexed in code.db at krisyotam.com/code.