Route Algo

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Indian Railways has assigned each city that it covers all over India with a unique three digit code. It has collected information about all the adjacent train route it operates, represented as a list of pairs of the form ("city1","city2"), where city1 is the 3-digit code of the starting city and city2 is the 3-digit code of the ending location city. IRCTC is building their website. Now, it wants

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solution.cppC++17

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