Computational Thinking · End Term · 30 Apr 2023 · January 2023 term · Set QPF1-S2

Question 17: stations is a list that contains the sequence of station…

Question 17

+4 marksOne correct option

stations is a list that contains the sequence of stations visited by a train from the "Trains" dataset. Each element in stations is a pair: [Name, Distance], the first entry is the name of the station, while the second entry is the distance of this station from the first station in the list.
maxDist is a procedure that accepts stations as a parameter and returns the names of a pair of consecutive stations which have the longest distance between them on this route. Complete the following procedure.

text

1 1  Procedure maxDist(stations)
2 2      pair = ["None", "None"]
3 3      max = 0, diff = 0
4 4      prev = first(stations)
5 5      foreach x in rest(stations){
6 6          diff = last(x) - last(prev)
7 7          *************************
8 8          *   Fill the code       *
9 9          *************************
1010          prev = x
1111      }
1212      return(pair)
1313  End maxDist

Based on the above data, answer the given subquestions.

There may be multiple pairs having the same maximum distance. If we wish to find a pair of stations closest to the last station in the list, which of the following is the correct code fragment?

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Question 17 of 25 in the IIT Madras BS Computational Thinking (Computational Thinking (CT)) End Term paper sat on 30 Apr 2023, in the January 2023 term (IIT M FOUNDATION ET1 EXAM QPF1 S2 30 Apr 2023). It carries 4 marks.

Question 17: stations is a list that contains the sequence of station…

Question 17

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