求并联电阻

   

 

 

#include<iostream>
#include<cstdlib>
using namespace std;
int main()
{
int r,r1,r2;
cout<<"输入两个电阻阻值:";
cin>>r1>>r2;
r=r1+r2;
cout<<"并联后的电阻值:"<<r<<endl;
return 0;
}