CodeQuest Exam-Ready – OCR Pseudocode Tutor

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Key syntax

Mission checklist

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Byte says

Predict what your program should do before pressing Run.

Model solution

Ctrl+Enter: Run · Ctrl+Shift+Enter: Check

Ready.

OUTPUT CONSOLE

Output and input
print(x)
name = input("Name: ")

Selection
if condition then
elseif condition then
else
endif

Loops
for i = 0 to 4 … next
while condition … endwhile
do … until condition

Arrays
array a[5]
array grid[3,4]
a[0] · grid[1,2]

Functions
function double(n)
return n * 2
end function

Procedures
procedure greet(name)
end procedure
greet("Sam")

Strings
word.length
word.substring(2,4)
word.left(3) · word.right(3)
word.upper · word.lower

Casts and Booleans
whole = int(value)
text = str(number)
True · False

SQL missions
SELECT field
FROM table
WHERE condition

Files
newFile("a.txt")
f = open("a.txt")
f.writeLine(x)
f.readLine()
f.endOfFile()
f.close()

Important: arrays and strings are zero indexed. Conditions compare using == or !=. Use AND, OR and NOT for logic.

Mission complete!