Serve.cfg:problem:disable submit after ok
From EjudgeWiki
Редактирование элемента: страница "Editing contest", вкладка "Problems (serve.cfg)", блок "Abstract problems", поле "Disable submissions after OK", либо страница "Editing contest", вкладка "Problems (serve.cfg)", блок "Concrete problems", поле "Disable submissions after OK".
