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...Hackerrank coding problems with solutions question maximum passengers problem statement a taxi can take multiple to the railway station at same time on way back starting point driver may pick up additional for his next trip airport map of passenger location has been created represented as square matrix is lled cells and each cell will have an initial value follows greater than or equal zero represents path obstruction rules motion are starts n movement towards right down through valid after reaching travels by travelling left when passing containing picked once rider becomes empty if there no between then be goal collect many possible so that maximize earnings example consider following grid start top corner move one collecting destination blocked return reverse all paths explored collected returns int number sample input size m mat output explanation contain taking std in function c code include using namespace dp bool isvalid i j false true solve x y min else find end...