Suma numerelor care au prima cifra egala cu a doua

#include <iostream>

using namespace std;

int main()
{
    int n, x, i, c, cp, cf, s=0, v;
    cout<<"n="; cin>>n;
    for(i=1; i<=n; i++)
    {
        cin>>x;
        v=x;
        cp=x%10;
        while(x!=0)
        {
            c=x%10;
            x=x/10;
        }
        cf=c;
        if(cp==cf)
            s=s+v;
    }
    cout<<s;

    return 0;
}