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        #include <stdio.h>
 
// Funzione che scambia due numeri usando i puntatori
void scambia(int *a, int *b) {
    int temp = *a;
    *a = *b;
    *b = temp;
}
 
int main() {
    int x = 5, y = 10;
 
    printf("Prima dello scambio:\n");
    printf("x = %d, y = %d\n", x, y);
 
    // Passaggio per riferimento tramite indirizzi di memoria
    scambia(&x, &y);
 
    printf("Dopo lo scambio:\n");
    printf("x = %d, y = %d\n", x, y);
 
    return 0;
}
 

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