include iostream using namespace std string sign int if return Variabl

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#include <iostream>
using namespace std;
string sign(int x) {
if (x > 0) {
return "Variable is positive";
} else if (x == 0) {
return "Variable = 0";
} else {
return "Variable is negative";
}
};
string sign(double x) {
if (x > 0) {
return "Variable is positive";
} else if (x == 0) {
return "Variable = 0";
} else {
return "Variable is negative";
}
};
int main() {
int a;
double b;
cout << "Enter integer variable a:" << endl;
cin >> a;
cout << sign(a) << endl;
cout << "Enter double variable b:" << endl;
cin >> b;
cout << sign(b) << endl;
return 0;
}