I am sorry but i don't know why this algorithm is not working.

The error at compiling is : "Reference to 'function' is ambiguous " and is on **y = function()** line, where I am calling the function

```
#include <iostream>
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#define PI 3.141
float function(int g, int m, int s, float z)
{
using namespace std;
z = (g + m/60.0 + s/3600.0)*PI/180.0;
return z;
}
int main()
{
using namespace std;
float y;
int g,m,s;
cout << "g = ";
cin >> g;
cout <<"m = ";
cin >> m;
cout<<"s= ";
cin >>s;
y = function();
cout << "y= " << y << endl;
//cout<< (g + m/60.0 + s/3600.0)*PI/180.0 << endl;
return 0;
}
```

Vers2 – updated:

```
#include <iostream>
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#define PI 3.141
float function(int g, int m, int s)
{
//using namespace std;
float z = (g + m/60.0 + s/3600.0)*PI/180.0;
//std::cout << z <<std::endl;
return z;
}
int main()
{
// using namespace std;
float y;
int g,m,s;
std::cout << "g = ";
std::cin >> g;
std::cout <<"m = ";
std::cin >> m;
std::cout<<"s= ";
std::cin >>s;
function();
// std::cout << "y= " << y << std::endl;
//cout<< (g + m/60.0 + s/3600.0)*PI/180.0 << endl;
return 0;
}
```

## Best Solution

There is a member

`function`

in std and you inserted it into your namespace. Avoid using`using namespace std;`

; you can import what you need this way: