calloc Proves the Bytes Are Zero

Read an integer n. Use calloc to allocate n ints, then print two lines:

- "Before:" followed by every element, each preceded by a single space
- then store i * i in element i, and print "After:" followed by every element the same way

For the input:

4

the output is exactly what is shown in Expected Output.

Format: the label, then one space before each number, and no trailing text.

Free the memory you allocate before the program ends — this question checks for memory leaks.

Expected Output:

Before: 0 0 0 0↵
After: 0 1 4 9↵

= newline. The output ends with a newline — print one after the last line.

Hints4 available

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