Pseudocode and Writing Algorithms

Question 1

Comments

Answer 1

//

Question 2

Variables

Answer 2

variablename = 3 (int)
variablename = “string” (string)
CONST variablename = 3 (constant)

Question 3

Casting

Answer 3

str(20) (casts an integer to a string)
int(“20”) (casts a string to an integer)

Question 4

Input

Answer 4

variablename = input()

Question 5

Output

Answer 5

print(“Hello”)
print(5)
print(variablename)

Question 6

Selection

Answer 6

if… then
elseif… then
else
endif

Question 7

While Loop

Answer 7

while…
endwhile

Question 8

For Loop

Answer 8

for…
endfor

Question 9

Logical Operators

Answer 9

AND
OR
NOT

Question 10

Comparison Operators

Answer 10

==
!=
<
<=
>
>=

Question 11

Arithmetic Operators

Answer 11

*
/
MOD
DIV

Question 12

String Handling (length, upper, lower)

Answer 12

variable.LENGTH (length of a variable)
variable.UPPER (converts to uppercase)
variable.LOWER (convers to lowercase)

Question 13

Sub-routines - creates a function and pass parameters

Answer 13

function name(parameters)
return value
endfunction

Question 14

Arrays - use of an array and index

Answer 14

arrayname[lengthofarray]
arrayname[1] = “Bob”

Question 15

File Handling

Answer 15

OpenWrite(“filename.txt”)
file.ReadLine()
file.WriteLine(variable)
file.Close()