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A statement is a command given to the computer that instructs the computer to
take a specific action, such as display to the screen, or collect input. A
computer program is made up of a series of statements.
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The bodies of C functions (including the main function) are made up of
statements. These can either be simple statements that do not contain other
statements, or compound statements that have other statements inside them.
Control structures are compound statements like if/then/else, while, for, and
do..while that control how or whether their component statements are executed.