1. Pseudo-Code Conditional Branches
Class Activity
ICS B
Spring 2015
Anham Liaqat

2. Exercise 1 Input Variable: X Pseudocode: Z = 1 INPUT X OUTPUT Z
What is output of above program if input is
a) X is 3
b) X is 4
c) X is 2
IF X is less than 4
Z = 2
END IF

3. Exercise 2 Input Variable: X Pseudocode: Z = 1 INPUT X OUTPUT Z
What is output of above program if input is
a) X is 1
b) X is 5
c) X is 4
IF X is less than 4
Z = 2
ELSE
Z = 4
END IF

4. Exercise 3 Input Variable: X Pseudocode: Z = 1 INPUT X OUTPUT Z
What is output of above program if input is
a) X is 3
b) X is 4
c) X is 1
IF X is less than 4
Z = 1
END IF
IF X is equal to 3
Z = 2
END IF

5. Exercise 4 Input Variable: X Pseudocode: Z = 1 INPUT X OUTPUT Z
What is output of above program if input is
a) X is 3
b) X is 4
c) X is 2
IF X is less than 4
Z = 3
END IF
IF X is equal to 3
Z = 2
END IF

6. Exercise 5 Z = 1 INPUT X INPUT Y OUTPUT Z Input Variables: X, Y
Pseudocode:
Z = 1
INPUT X
INPUT Y
OUTPUT Z
What is output of above program
if input is
X is 3 and Y is 4
X is 3 and Y is 2
X is 2 and Y is 3
IF X is equal to 3
END IF
IF Y is greater than X
Z = 4
ELSE
Z = 5
END IF

7. Exercise 6 Input Variable: X Pseudocode: INPUT X Z = 1 OUTPUT Z
IF X is less than 4
Z = 1
ELSE
END IF
 1.What is output of this program if input is
X is 3
X is 4
X is 5
2. For what input in X, the output variable Z is set to 2?
IF X is equal to 3
Z = 2
ELSE
END IF
IF X is equal to 4
Z = 3
ELSE
Z = 4
END IF

8. Exercise 7
Write pseudocode for a program which takes a year as input (e.g. 2014) and determines whether or not it is a leap year. A leap year is a multiple of 4, and if it is a multiple of 100, it must also be a multiple of 400.

9. Exercise 7 Solution
There are more then one solutions. This is only one of them

10. Exercise 8
Write and run a program that plays the game of “Rock, paper, scissors.” In this game, two players simultaneously say (or display a hand symbol representing) either “rock,” “paper,” or “scissors.” The winner is the one whose choice dominates the other..
The rules are: paper dominates (wraps) rock, rock dominates (breaks) scissors, and scissors dominate (cut) paper.
You can use 1=rock,2=paper,3=scissors
Sample Input: 1 1
Sample Output: Draw
Sample Input: 1 2
Sample Output: 2nd player wins

11. Exercise 8 Solution
There are more then one solutions. This is only one of them