Stage 2 of the Moroccan national IOI selection.
The Contest will follow IOI rules with hidden scoreboard, ties are broken by submission time. No extra time penalty for a wrong submission.
You will be given 3 tasks to solve in 4 hours (with partial scoring).
Not suitable for beginners.
This round is RATED.
Problems were prepared and tested by : Samir Idwy, Anouar Achghaf (), Mouad Naciri ( ), Hamza Mouhcine ( ) and Moncef MHASNI ( )
|Open the safe||50p||8.6%||20|