int f(int &a, int &b)
#include <iostream>using namespace std;int a, b, s;void schimb(int &a, int &b){ int temp=a; a=b; b=temp;}int main(){ cout<<"a=";cin>>a; cout<<"b=";cin>>b; schimb(a, b); cout<<"a="<<a<<endl; cout<<"b="<<b<<endl;}