What am i typing wrong in this C++ program?

#include%26lt;iostream%26gt;


#include%26lt;conio%26gt;


#include%26lt;iomanip%26gt;


using namespace std;





void main ()





{





string firstName, lastName;


float num1 = 0.0;


float num2 = 0.0;


float num3 = 0.0;


float num4 = 0.0;


float num5 = 0.0;





cout%26lt;%26lt;"Please enter your first and last name: ";


cin%26gt;%26gt;firstName, lastName;





cout%26lt;%26lt;"Please enter the student's five program scores";


cout%26lt;%26lt;"Each score must be an integer between 0 %26amp; 100";


cout%26lt;%26lt;"Please enter your first program score: ";


cin%26gt;%26gt;num1;


cout%26lt;%26lt;"Please enter your second program score: ";


cin%26gt;%26gt;num2;


cout%26lt;%26lt;"Please enter your third program score: ";


cin%26gt;%26gt;num3;


cout%26lt;%26lt;"Please enter your fourth program score: ";


cin%26gt;%26gt;num4;


cout%26lt;%26lt;"Please enter your fifth program score: ";


cin%26gt;%26gt;num5;





cout%26lt;%26lt;"Program scores you entered were: "%26lt;%26lt;setw(5)%26lt;%26lt;num1%26lt;%26lt;setw(5)%26lt;%26lt;num2%26lt;%26lt;setw(5)...





programAverage = (num1+num2+num3+num4+num5)/5;

What am i typing wrong in this C++ program?
You never declared variable programAverage.