Which control structure are used in iteration logic?

In iteration logic, the primary control structures used are loops, such as "for," "while," and "do-while" loops. These structures allow a block of code to be executed repeatedly based on a specified condition. The "for" loop is typically used when the number of iterations is known, while the "while" and "do-while" loops are used when the number of iterations is determined by a condition that may change during execution. Each structure provides a way to manage the flow of control in programs that require repeated execution of code.