The break statement violates pure structured programming principles because it provides a second nonstandard exit from a loop.
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When a continue statement is encountered in a loop, the next iteration of the loop begins immediately.
In many situations, especially those that use a counter-controlled loop, the for statement format is easier to use than its while equivalent.
The construction for ( ; count <= 20;)… is not valid.
In C, lists where commas are required to separate individual expressions in the list, are referred to as comma-separated lists.