From the following list of train rapid transit system (one way): School : A->B->C->D Work 1 : E->B->F->G->H Work 2 : B->N->E Work 3 : H->D->N Question: Design an algorithm to read the train rapid transit system routes list and print the number of tickets we need to purchase if we want to visit all places minimal twice. The complexity of the algorithm must be O(V+E). V is the number of places. E-> is the number of transits. PS: Use Tarjan’s or Kosaraju’s strongly connected component algorithm.

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Computational Systems

The computation systems can be defined as the systems that are capable of solving a problem that includes calculations either mathematical or logical, and are able to produce the result as an output. For example, a simple calculator that is given a set of numbers and operators as input and produces the result as an output can be defined as a computational system. The above example is a simple illustration only, the computational systems range from simple devices to complex devices such as the systems that control the SpaceX companies, Starlink satellites which are being quite recently seen in the skies at many places globally.