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28 July, 16:11

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What is some iterative programming structure uses?

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  1. 28 July, 18:01
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    Often in an algorithm, a group of statements needs to be executed again and again until a certain condition is met, this is where we find the need for iteration.

    The repeated execution of some groups of code statements in a program is called iteration.

    In iteration control structures, a statement or block is executed until the program reaches a certain state, or operations have been applied to every element of a collection. This is usually expressed with keywords such as while, repeat, for, or do ... until.

    The basic attribute of an iteration control structure is to be able to repeat some lines of code. The visual display of iteration creates a circular loop pattern when flowcharted, thus the word "loop" is associated with iteration control structures. Iteration can be accomplished with test before loops, test after loops, and counting loops. A question using Boolean concepts usually controls how often the loop will execute.

    Applications of Iteration

    Iteration methodology has various applications in the programming world

    Problem-solving in arrays, vectors, lists, strings, etc. Problem-solving using Stack, Queue and Priority Queue Bottom-up implementation of Dynamic Programming Implementation of greedy algorithms BFS traversal of tree and graph Problem-solving using Hash Table and BST Iterative Implementation of recursive code using stack

    Iteration (Repetition) Control Structures

    pseudocode: While

    count assigned zero

    While count < 5

    Display "I love computers!"

    Increment count

    End

    pseudocode: Do While

    count assigned five

    Do

    Display "Blast off is soon!"

    Decrement count

    While count > zero

    pseudocode: Repeat Until

    count assigned five

    Repeat

    Display "Blast off is soon!"

    Decrement count

    Until count < one

    pseudocode: For

    For x starts at 0, x < 5, increment x

    Display "Are we having fun?"

    End
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