for (int i=0; i < x; i++)

Computer Networking: A Top-Down Approach (7th Edition)
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### Question 5: Loop Execution Analysis

**Problem Statement:**

How many times will the following loop be executed? Explain your answer.

```c
float x = 0;
do
{
    for (int i = 0; i < x; i++)
    {
        x = 11;
        printf("current values i and x: %i %f \n", i, x);
    }
} while (x < 10);
```

**Explanation:**

- The `do-while` loop checks the condition `x < 10` to determine whether to continue executing.
- Initially, `x` is set to `0`.
- The `for` loop condition `i < x` is evaluated as `0 < 0`, which is false initially. Therefore, the loop body does not execute.
- The value of `x` is immediately set to `11` inside the `for` loop, which changes `x` before the `for` loop's body can run.
- The `do-while` condition `(x < 10)` is evaluated after the `for` loop, and since `x` is `11`, the loop terminates.

**Conclusion:**

The outer `do-while` loop executes only once, and the inner `for` loop does not execute at all.
Transcribed Image Text:### Question 5: Loop Execution Analysis **Problem Statement:** How many times will the following loop be executed? Explain your answer. ```c float x = 0; do { for (int i = 0; i < x; i++) { x = 11; printf("current values i and x: %i %f \n", i, x); } } while (x < 10); ``` **Explanation:** - The `do-while` loop checks the condition `x < 10` to determine whether to continue executing. - Initially, `x` is set to `0`. - The `for` loop condition `i < x` is evaluated as `0 < 0`, which is false initially. Therefore, the loop body does not execute. - The value of `x` is immediately set to `11` inside the `for` loop, which changes `x` before the `for` loop's body can run. - The `do-while` condition `(x < 10)` is evaluated after the `for` loop, and since `x` is `11`, the loop terminates. **Conclusion:** The outer `do-while` loop executes only once, and the inner `for` loop does not execute at all.
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