A-LevelComputer ScienceFurther programming9618/23 · Oct/Nov 2023 · Q66 Marks
A function TestNum() will take a six-digit string as a parameter. The function will test whether the string meets certain conditions and will return an integer value as follows: Return value | Condition | Example -------------|----------------------------------------------|---------- 1 | The last three digits are the same but non-zero. | "253444" 2 | The last three digits are zero. | "253000" 3 | The first three and last three digits are the same. | "410410" The function will return the highest possible value for the given string. If the string does not meet any of the conditions, zero is returned.
- Write pseudocode for function TestNum(). Assume that the parameter is valid.[6]
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2023). The mark or mark type is shown in brackets.
- 6 MP1 Function heading and ending including parameter and return type
- 6 MP2 Test for Condition 1
- 6 MP3 Test for Condition 2
- 6 MP4 Test for Condition 3
- 6 MP5 Return the highest value if more than one condition is satisfied
- 6 MP6 Return zero if no condition matched
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