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Composition and Decomposition Three Marks Questions

11th Standard

    Reg.No. :
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Computer Science

Time : 00:45:00 Hrs
Total Marks : 30
    10 x 3 = 30
  1. If C is false in line 2, trace the control flow in this algorithm.
    1 S1
    2 -- C is false
    3 if C
    4 S2
    5 else
    6 S3
    7 S4

  2. What is case analysis?

  3. Draw a flowchart for -3 case analysis using alternative statements.

  4. Define a function to double a number in two different ways:
    (1) n + n,
    (2) 2 x n.

  5. Describe conditional statement.

  6. Write an algorithm to find the minimum of two number.

  7. Write an algorithm to compare two values and returns if a > b is -1, a < b = 1 and a=b=0. Using case analysis.

  8. Explain conditional statement.

  9. Write a note on refinement.

  10. For the given two flowcharts write the pseudo code.

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