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#include <iostream> using namespace std; void HoanVi(int* x, int* y) // int* x = &a; int* y = &b; { int temp = *x; *x = *y; *y = temp; } void main() { int a = 1; int b = 2; HoanVi(&a, &b); cout << "a = " << a <<" ,b = " << b; system("pause"); }
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