O-LevelComputer ScienceData Representation2210/22 · May/June 2022 · Q35 Marks
Describe a one-dimensional array. Include an example of an array declaration.
- (a)Describe a one-dimensional array. Include an example of an array declaration.[3]
- (b)Explain how indexing could be used to search for a value stored in a one-dimensional array.[2]
Mark scheme
Marking points from the official mark scheme (May/June 2022). The mark or mark type is shown in brackets.
- [1] • a list / one column of items
- [1] • of the same data type
- [1] • stored under a single identifier
- [1] • with a single index to identify each element
- [1] One mark for an example of a declaration example e.g. DECLARE MyArray[1:10] OF INTEGER
- [1] using a counter to index the array
- [1] so that the same code can be repeatedly used to check every element // every element can be checked in a loop
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