cout error message

Question

#include
using namespace std;
int
main ()
{
  // Number of customers
  int numCustom = 16500;
  // Percent of customers that buy energy drink per week
  double energyDrinkPurch = 0.15;
  // Percent of energy drinks that are purchase that are flavored citrus
  double citrusEnergy = 0.58;
  // Percent of cutomers that bought something other than an energy drinks
  double otherPurch = 0.85;
  // Number of cutomers who bought energy drinks
  double customEnergyDrink = numCustom * energyDrinkPurch;
  // Number of cutomers that prefer citrus flavored energy drink
  double citrusPref = customEnergyDrink * citrusEnergy;
  // Number of cutomers who but something besides of the energy drink
  double otherCustomPurch = numCustom * otherPurch;
  // Output of the totals
  
    cout << "The approximate number of cutomers that purchase at least one energy drink per week is" << customEnergyDrink;
    
    cout << "\nThe approximate number of customers that purchase energy drinks and that prefer the citrus flavoris" << citrusPref;
  
    cout << "\nThe approximate number of cutomers that purchase something besides an energy drink is" << otherCustomPurch endl;
  return 0;
}

but then i keep getting an error message 

 #include
         ^
main.cpp: In function ‘int main()’:
main.cpp:30:5: error: ‘cout’ was not declared in this scope
     cout << "The approximate number of cutomers that purchase at least one energy drink per week is" << customEnergyDrink;
     ^~~~

Answer 1

You are missing what goes after the "include"

     #include <iostream>

You are also missing the "<<" in the "endl"

     cout << "\nThe approximate number of cutomers that purchase something besides an energy drink is" << otherCustomPurc << endl;

When you have an error I recommend that you check to the previous lines. Usually those have an error.