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Computer Science (AS & A Level) · May / June 2025 · Paper 22 · Question 6

9618

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The question as text

Two arrays Data and Pointer are accessed by the procedure Place() Data and Pointer are both global arrays of type INTEGER The contents of these two arrays are shown: Data Pointer 1 1018 1 7 2 1007 2 3 3 1010 3 1 4 1056 4 6 5 1092 5 -1 6 1062 6 5 7 1034 7 4 8 0 8 9 9 0 9 10 10 0 10 -1 Study the pseudocode: PROCEDURE Place(Value : INTEGER, Start : INTEGER, Unused : INTEGER) DECLARE New, Current, Last : INTEGER CONSTANT NullPointer = -1 New Unused Last NullPointer Current Start WHILE Current <> NullPointer AND Data[Current] < Value Last Current Current Pointer[Current] ENDWHILE Pointer[New] Pointer[Last] Pointer[Last] New Data[New] Value ENDPROCEDURE

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Show the answer and mark scheme
  • 6(a)(i)[4]

  • 6(a)(ii)[3]

  • 6(b)[2]

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