This message is appearing for each of my functions. Could someone explain what the issue is and how to fix it/ prevent it in the future?
Thank You. Here is my code:

Code:
#include <iostream>
#include <string>
using namespace std;

struct airport
{
	float numLanded;
	float numDeparted;
	float greatestLanded;
	float leastLanded;
};

float averageDeparture(airport, int);
float averageLanded(airport, int);
int greatestLanded(airport, int);
int leastLanded(airport, int);


int main()
{
	string months[] = { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" };
	airport statistics[12];
	int totalLanded = 0;
	int totalDeparted = 0;
	int count;
	
		for (count = 9; count < 12; count++)
		{
			cout << "Please enter the number of planes that landed in " << months[count] << ": " << endl;
			cin >> statistics[count].numLanded;
			cout << "Please enter the number of planes that departed in " << months[count] << ": " << endl;
			cin >> statistics[count].numDeparted;
			cout << "Please enter the greatest number of planes that landed on a single day in " << months[count] << ": " << endl;
			cin >> statistics[count].greatestLanded;

			
			
			totalLanded += statistics[count].numLanded;
			totalDeparted += statistics[count].numDeparted;
		}
		
	

	cout << "The average monthly landings for the year is " << averageDeparture(statistics[count], count) << endl;
	cout << "The average monthly departures for the year is " << averageLanded(statistics[count], count) << endl;
	cout << "The total landings for the year is " << totalLanded << endl;
	cout << "The total departures for the year is " << totalDeparted << endl;
	cout << "The greatest number of planes that landed in a single day is " << greatestLanded(statistics[count], count) << " which occured in the month of " << months[count] << endl;
	cout << "The least number of planes that landed in a single day is " << leastLanded(statistics[count], count) << " which occured in the month of " << months[count] << endl;

	system("pause");
	return 0;
}

float averageDeparture(airport array[], int pos)
{
	float total = array[pos].numDeparted;
	
	return (total / 3);
	
}

float averageLanded(airport array[], int pos)
{
	float total = array[pos].numDeparted;
	

	return (total / 3);

}

int greatestLanded(airport array[], int pos)
{
	int max = 0;
	for (int i = 1; i < pos; i++)
	{
		if (array[i].numLanded > array[i + 1].numLanded)
		{
			max = array[i].numLanded;
			return max;
		}
	}
}

int leastLanded(airport array[], int pos)
{
	int min = 0;
	for (int i = 1; i < pos; i++)
	{
		if (array[i].numLanded < array[i + 1].numLanded)
		{
			min = array[i].numLanded;
			return min;
		}
	}
}