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Draw and name Three (3) flowchart symbols. Hence explain each. Write a Pseudocode to compute student result and print "Pass" when score >=10, otherwise print "Fail". Draw a flowchart for the pseudocode in (b) above.

Computer Science

ScanSolve AI Answer

Step-by-step solution

5 steps

To sort the list [8, 3, 5, 1, 7, 2, 6, 4] using the merge sort process, we repeatedly divide the list into halves until each sublist contains only one element, then merge these sublists in sorted order.

  1. Divide the original list into two halves.

    [8,3,5,1,7,2,6,4][8, 3, 5, 1, 7, 2, 6, 4]

    Divide:

    [8,3,5,1][7,2,6,4][8, 3, 5, 1] \quad [7, 2, 6, 4]
  2. Continue dividing each sublist until individual elements are reached.

    Divide [8, 3, 5, 1]:

    [8,3][5,1][8, 3] \quad [5, 1]

    Divide [7, 2, 6, 4]:

    [7,2][6,4][7, 2] \quad [6, 4]

    Further divide:

    [8][3][5][1][7][2][6][4][8] \quad [3] \quad [5] \quad [1] \quad [7] \quad [2] \quad [6] \quad [4]
  3. Merge the single-element sublists into sorted pairs.

    Merge [8] and [3] →\rightarrow [3, 8]
    Merge [5] and [1] →\rightarrow [1, 5]
    Merge [7] and [2] →\rightarrow [2, 7]
    Merge [6] and [4] →\rightarrow [4, 6]
    Resulting sublists:

    [3,8][1,5][2,7][4,6][3, 8] \quad [1, 5] \quad [2, 7] \quad [4, 6]
  4. Merge the sorted pairs into larger sorted sublists.

    Merge [3, 8] and [1, 5] →\rightarrow [1, 3, 5, 8]
    Merge [2, 7] and [4, 6] →\rightarrow [2, 4, 6, 7]
    Resulting sublists:

    [1,3,5,8][2,4,6,7][1, 3, 5, 8] \quad [2, 4, 6, 7]
  5. Merge the two final sorted sublists to get the complete sorted list.

    Merge [1, 3, 5, 8] and [2, 4, 6, 7] →\rightarrow [1, 2, 3, 4, 5, 6, 7, 8]

    The sorted list is:

    [1,2,3,4,5,6,7,8]\boxed{[1, 2, 3, 4, 5, 6, 7, 8]}
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