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AP Computer Science a Flashcards: Implementing Selection And Iteration Algorithms

Study Implementing Selection And Iteration Algorithms in AP Computer Science a with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

What is an iteration in the context of loops?

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ANSWER

A single execution of the loop body. One complete pass through the loop body statements.

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AP Computer Science a: Selection and Iteration

You are hereImplementing Selection and Iteration Algorithms39 cards

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This deck focuses on Implementing Selection And Iteration Algorithms, giving you a quick way to review the definitions, rules, and examples that matter most for AP Computer Science a.

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Practice questions

1 of 19Practice questions for this set
Given the task requirements, what will be the output after executing the provided code snippet? You are implementing selection sort. After each outer-loop pass, the smallest remaining element is swapped into position i. Use iteration for scanning and selection for tracking the minimum. Input: nn, then nn integers. Output: sorted array. Constraints: 1≤n≤1001 \le n \le 100; values in [-1000,1000]. Example input: 4 5 2 9 1 Example output: 1 2 5 9 Code snippet: 
int[] a = {5, 2, 9, 1};

**for** (int i = 0; i < a.length - 1; i++) {
    int min = i;
    **for** (int j = i + 1; j < a.length; j++) {
        **if** (a[j] < a[min]) {
            min = j;
        }
    }
    int tmp = a[i];
    a[i] = a[min];
    a[min] = tmp;
}
System.out.print(a[0] + " " + a[1]);
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