Finding geo and harm mean overloading - c++

Question

I am working on a project for a class and I am having some troubles, that gave me 2 errors which i don't understand what they mean...
It gave the error: c4716 "medie" must return a value.
Here is the code:
#include <iostream>
#include <stdlib.h>
#include<math.h>
using namespace std;
float medie(float a, float b, float c)
{
float MG,MA;
MG= sqrt(a*b*c);
cout<< "MG="<< MG<<endl;
MA=(2*a*b*c)/(a+b+c);
cout<< "MA="<< MA<<endl;
}
float medie(float a,float b,float c,float d)
{
float MG,MA;
MG= sqrt(a*b*c*d);
cout<< "MG="<< MG<<endl;
MA=(2*a*b*c*d)/(a+b+c+d);
cout<< "MA="<< MA<<endl;
}
int main()
{
float a,b,c,d;
cout<<"a="<<endl;
cin>>a;
cout<<"b="<<endl;
cin>>b;
cout<<"c="<<endl;
cin>>c;
cout<<"d="<<endl;
cin>>d;
medie(a,b,c);
medie(a,b,c,d);
}

Answer 1

Your medie function is declared to return a float value, but you don't have any return statement in it. If you declare them to return void the error should go away.
#include <iostream>
#include <stdlib.h>
#include <math.h>
using namespace std;
void medie(float a, float b, float c)
{
float MG,MA;
MG = sqrt(a*b*c);
cout<< "MG="<< MG<<endl;
MA = (2*a*b*c)/(a+b+c);
cout<< "MA="<< MA<<endl;
}
void medie(float a,float b,float c,float d)
{
float MG,MA;
MG = sqrt(a*b*c*d);
cout<< "MG="<< MG<<endl;
MA = (2*a*b*c*d)/(a+b+c+d);
cout<< "MA="<< MA<<endl;
}
int main()
{
float a,b,c,d;
cout<<"a="<<endl;
cin>>a;
cout<<"b="<<endl;
cin>>b;
cout<<"c="<<endl;
cin>>c;
cout<<"d="<<endl;
cin>>d;
medie(a,b,c);
medie(a,b,c,d);
}