数値伝達リファレンス伝達(Numeric Transfer Reference Transfer)

int main(int argc, const char * argv[]) {
     //    
    int a=10;
    int b=20;
    
    int i=a;
    a=b;
    b=i;
    printf("%i%i
",a,b);
    
   //    *                           
    int m=1;
    int* m1=&m;
    int n=3;
    int* n1=&n;
    
    int y=*m1;
    printf("%i
",y);
    *m1=*n1;
    *n1=y;
      printf("%i%i",m,n);

    
    return 0;
}