Qual­i­fy­ing round is over

The qual­i­fy­ing round of the Olympi­ad had ended a few days ago, so the jury starts check­ing the answers.

Also we are pub­lish­ing solu­tions of the tasks.

• Solu­tions of the prob­lems (in Russian) 
• Solu­tions of the prob­lems (in English)