9.10 problema 1

#include <iostream>
#include <fstream>

using namespace std;

int schimb(int a,int b)
{
    int aux;
    aux=b;
    b=a;
    a=aux;
}

int main()
{
    int a,b,n,i;
    cout<<"n= ";cin>>n;
    for (i=1;i<=n;i++)
    {
    cout<<"a= ";cin>>a;
    cout<<"b= ";cin>>b;

    cout<<schimb(a,b);
    cout<<" ";
    cout<<schimb(b,a)<<'\n';
    }
    return 0;
}