tahsin_protik

Kolu was playing with $N$ piles of stones. His target is to make all piles equal within $M$ moves, p...

Moderate 5/7/37

There is a company that is very famous for arranging unfair contests. They are arranging a new weird...

Moderate 3/6/30

The greatest company, Pied Piper, is developing encryption systems. The company has already built Md...

NumberTheory Moderate 35/42/120