GrobyIn the 197080s, students in the Soviet Union had to face quite a hurdle. The administrators of sele...

Revisiting Metro Rail BlocksThe city of Dhaka is experiencing the construction of metro rails. Imagine one such metro rail spans...

Help Sakib!Sakib likes competitive programming. Often he takes part in online programming contests. But due to ...

Binary PigeonsThere are N pigeons standing one after another in a straight line. There are two kinds of pigeons: w...

ACT 1: Ash Counting TreesAsh Ketchum has a weird rooted tree (read Notes sections if you donâ€™t know about tree data structure...

Next PermutationA sequence of N distinct integers is called a permutation if all the integers are between 1 and N (i...

Hououin Kyouma!Okabe Rintarou, the mad scientist is doing research to find the most desired Steins Gate. Besides be...

Tricky RacerTalent Bob is a galaxy wide known legend and a racer (in game :P). He always wins races by his trick...

The Game Is Finally OnAs Mr. Bean was playing a video game in the previous problem, now he is leveled up. At this level, h...
