Write a C++ program defining a function that computes and returns the square of an integer.
A single integer N.
Print the squared value.
-1000 <= N <= 1000
12
144
Uses a function with a return type to pass computation results back to main.
#include <iostream>
// Define square function here
int main() {
int n;
if (std::cin >> n) {
// Call square and print result
}
return 0;
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