Police StationsRecently the government of country S is going to construct some police stations(possibly zero) in so...
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Hide and SeekYou know how to play hide-and-seek, right? In a group of kids, one of them is selected to be the see...
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Do You Know Tree ?"Stay at least one metre distance from others.” Corona has affected the World as well as Banglad...
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Color The GraphYou are given an acyclic, bidirectional graph with N nodes and M edges. The nodes are numbered from ...
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Race in DomKiThere is a kingdom called DomKi. DomKi has N city and N-1 two-way road. Each city is numbered with 1...
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