要求将变量的值互换

#include <iostream>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */
using namespace std;
int main(int argc, char** argv) {
void swap(int,int);
int i=3,j=5;
swap(i,j);
cout <<i<<" "<<j<<endl;
return 0;
}

void swap(int a,int b)
{
int temp;
temp=a;
a=b;
b=temp;
cout <<a<<" "<<b<<endl;
}