Pseudocode syntax reference

Reference the core pseudocode syntax supported by the browser compiler, including assignment, conditions, loops, arrays, and output.

Updated 2026-05-04

Core statements

Use DECLARE for variables, <- for assignment, INPUT for user input, and OUTPUT for displayed values.

Keywords are intentionally close to Cambridge-style pseudocode conventions so programs stay readable for exam practice.

DECLARE Total : INTEGER
Total <- 0
OUTPUT Total

Blocks

Selection and loop blocks use clear closing keywords such as ENDIF, NEXT, ENDWHILE, and UNTIL. Matching block endings makes programs easier to trace and debug.

Try it in the editor Open manual