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Analysing Algorithms

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  6. 6
  1. Question no 1 / 6
    1. Question
    1 point(s)

    What technique do we use to identify errors in our code?

    Correct
    Incorrect
  2. Question no 2 / 6
    2. Question
    1 point(s)

    True or False: We cannot use flowcharts when trying to identify errors in an algorithm.

    Correct
    Incorrect
  3. Question no 3 / 6
    3. Question
    1 point(s)

    Either through visual inspection or using a trace table, identify the purpose of this algorithm.

    number1 ← USERINPUT
number2 ← USERINPUT
result ← (number1 + number2) / 2
OUTPUT result

    Correct
    Incorrect
  4. Question no 4 / 6
    4. Question
    2 point(s)

    Complete the trace table for this algorithm, when the numbers 2, 9, 1 & 3 are input.

    number ← USERINPUT
IF number < 5 THEN
   OUTPUT 'A'
ELSE
   OUTPUT 'B'
ENDIF

    • Number Output
      2
      9
      1
      3
    Correct
    Incorrect
  5. Question no 5 / 6
    5. Question
    2.5 point(s)

    Complete the trace table for this algorithm.

    total ← 0
FOR x ← 0 TO 4
      total ← total + 1
ENDFOR

    • x total
        0
      0
      1
      2
      3
      4
    Correct
    Incorrect
  6. Question no 6 / 6
    6. Question
    3 point(s)

    Complete the trace table for this algorithm.

    FOR counter ← 0 TO 4
      result ← counter * 2
ENDFOR

    • counter result
      0
      1
      2
      3
      4
    Correct
    Incorrect