به این شکل :
#include <iostream> void swap(int &a,int &b) { a = a + b ; b = a - b ; a = a - b ; } int main() { int a=10; int b=20; swap(a,b); std::cout<<a<<" "<<b; return 0; }
int a=15; int b=11; a=a-b; b=a+b; a=b-a; cout<<a<<endl; cout<<b<<endl;