History of 2.4.21

Revisions on August 13, 2026

• Edits to “Statement”, “Answer”

  Valter Aug 13, 2026, 7:17 PM
  +0 −10 #20005
• New solutionnew solution

  Valter Aug 13, 2026, 7:16 PM
  +165 −0 #20004