IGCSE Computer Science Paper 2 Definitions Worksheet: 7d Standard Methods of Solution (Modules 275–285)
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Key terms
Write what each term means, in your own words.
1
Marks[3]
2
FOR Index ← 1 TO 10
3
standard method
4
Total ← Total + Value
5
Total ← Total + Number
6
Count ← Count + 1
7
IF Mark[i] >= 50 THEN Count ← Count + 1
Answer Key
IGCSE Computer Science Paper 2 · Modules 275–285 · Student wording will vary for definitions
1Marks[3] — Refers to one element of the array Marks by its index, here 3. You can read it or assign to it, e.g. Marks[3] ← 55. An index outside the array bounds causes an error.
2FOR Index ← 1 TO 10 — A loop whose counter is the array index. Inside it, Marks[Index] picks each element in turn, so the loop visits every item from position 1 to 10 once.
3standard method — A tried-and-tested algorithm for a common task, such as totalling, counting, max/min, average, linear search or bubble sort, that programmers reuse instead of inventing a new solution.
4Total ← Total + Value — Totalling keeps a running sum. Set Total to 0 before the loop, add each Value to Total inside the loop, then output Total after the loop. Counting adds 1 each time instead of the value.
5Total ← Total + Number — Adds each new Number to the running Total every time the loop repeats. Set Total ← 0 before the loop so the total starts from zero.
6Count ← Count + 1 — Counting adds 1 to a counter each time something happens. Start the counter at 0, add 1 (not the item's value), and do it for every item or only for matches.
7IF Mark[i] >= 50 THEN Count ← Count + 1 — An IF inside a loop adds 1 to Count only when an item meets the condition, so Count tallies the matching items. A total adds the item's value instead.