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Syllabus content<br />

2.3.4 Iteration<br />

• use a ‘count controlled’ loop:<br />

○<br />

given pseudocode will use the following structure:<br />

FOR ← TO <br />

<br />

ENDFOR<br />

○ alternatively:<br />

FOR ← TO STEP <br />

<br />

ENDFOR<br />

• use a ‘post-condition’ loop:<br />

○ given pseudocode will use the following structure:<br />

REPEAT<br />

<br />

UNTIL <br />

• use a ‘pre-condition’ loop<br />

○ given pseudocode will use the following structure:<br />

WHILE <br />

<br />

ENDWHILE<br />

• justify why one loop structure may be better suited to a problem than the others<br />

2.3.5 Built-in functions<br />

• use a subset of the built-in functions and library routines supported by the chosen programming<br />

language. This should include those used for:<br />

○<br />

○<br />

string/character manipulation<br />

formatting of numbers<br />

○ random number generator<br />

• use the information provided in technical documentation describing functions/procedures<br />

Cambridge International AS and A Level Computer Science 9608. Syllabus for examination in <strong>2015</strong>.<br />

29

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