GrobyIn the 1970-80s, students in the Soviet Union had to face quite a hurdle. The administrators of sele...
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Revisiting Metro Rail BlocksThe city of Dhaka is experiencing the construction of metro rails. Imagine one such metro rail spans...
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Help Sakib!Sakib likes competitive programming. Often he takes part in online programming contests. But due to ...
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Binary PigeonsThere are N pigeons standing one after another in a straight line. There are two kinds of pigeons: w...
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ACT 1: Ash Counting TreesAsh Ketchum has a weird rooted tree (read Notes sections if you don’t know about tree data structure...
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Next PermutationA sequence of N distinct integers is called a permutation if all the integers are between 1 and N (i...
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Hououin Kyouma!Okabe Rintarou, the mad scientist is doing research to find the most desired Steins Gate. Besides be...
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Tricky RacerTalent Bob is a galaxy wide known legend and a racer (in game :P). He always wins races by his trick...
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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...
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