May 2014
Intermediate to advanced
188 pages
7h 8m
English
Content preview from Students' Guide to Program Design
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Students' Guide to
Program
Design
2.2 The Structure Theorem
The Structure Theorem forms the basic framework for structured
programming. It states that it is possible to write any computer
program by using only three basic control structures, viz:
1 sequence
2 selection, and
3 repetition.
These control structures are easily represented in pseudocode and
Nassi-Schneiderman diagrams.
The three basic control structures
1 Sequence
The sequence control structure is defined as the straightforward
execution of one processing step after another. In pseudocode, we
represent this construct as a sequence of pseudocode statements:
Statement a
Statement
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