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#include <iostream>
 
using namespace std;
 
void squareMe(int a, int *b) // It looks uglier!
{
    *b = a*a;
}
 
int main(int argc, char *argv[])
{
    int a = 2, 
        *b = 0;
 
    b = new int; // memory allocation, if you don't do this, you face crashing.
 
    squareMe(a, b);
 
    cout << *b << endl; // messier, no?
 
    delete b; // dealloc
 
    return 0;
}

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