undefined reference to input vector

I am a beginner in CPP and occasionally run into problems, like in this case.

Here is my code

#include <iostream>  
#include <vector>  
#include <iomanip>  
using namespace std;  
void outputvector (const vector <int> &);  
void inputvector (vector <int> &);  
int wagescalc (int x)  
    {  
        int y = 200 + 0.9*x;  
        return y;  
    }  
int main()  
{  
    vector <int> employees(10);  
    vector <int> sales(10);  
    vector <int> finalwages(10);  
    cout << "please enter the employee names" << endl;  
    inputvector(employees);  
    cout << "please enter their respective sales";  
    inputvector(sales);  
}  

So basically, I wish to store ten employees' names, calculate their final wages based on a calculation mechanism, and then store and output the results. For all of this, I use vectors: The concept I'm currently learning.

Here is the error I get,

**error: invalid initialization of reference of type 'std::vector<int>&' 

from expression of type 'std::vector<std::basic_string<char> >'|**

It might be a very basic uestion, but I looked around and couldn't find a solution. Any help would be deeply appreciated.