Suppose u, v = 10, 5 before the assignment. What are the values of u and v after the sequence of assignments?
1 u :=v
2 v := u

Which of the following properties is true after the assignment (at line 3)?
1 --i, j = 0, 0
2 i, j := i+1, j-1
3 -- ?

If C1 is false and C2 is true, the compound statement
1 if CI
2 SI
3 else
4 if C2
5 S2
6 else
7 S3
executes

If C is false just before the loop, the control flows through
1 SI
2 while C
3 S2
4 S3

If C is true, S1 is executed in both the flowcharts, but S2 is executed in

Distinguish between a condition and a statement.

Why is function an abstraction?

How do we refine a statement?

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

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

For the given two flowcharts write the pseudo code.

Exchange the contents: Given two glasses marked A and B. Glass A is full of apple drink and glass B is full of grape drink. Write the specification for exchanging the contents of glasses A and B, and write a sequence of assignments to satisfy the specification.

Trace the step-by-step execution of the algorithm for factorial(4).
factorial(n)
--inputs: n is an integer, n > 0
-- outputs: f = n!
f, i := 1 ,1
while i < nf
, i := f × i, i+1