tYSR20

336Part V: Optional Featuresint factorial(int n){// you can’t handle negative values of n;// better check for that condition firstif (n < 0){throw Exception(“Argument for factorial negative”,n, __FILE__, __LINE__);}}// go ahead and calculate factorialint accum = 1;while(n > 0){accum *= n;n--;}return accum;int main(int nNumberofArgs, char* pszArgs[]){try{// this will workcout