Problems with arrays

[Danky]

I NEED HELP!!!! I have been trying to fix this code all day. I am new to coding.

There are things that are broken are the max and min. They do not pick the correct max and min or correct months. I cannot figure out how to get the average. I cannot get the array to add up and I do not know how to call that function to get average flights and delays.

  #include <iostream>
using namespace std;

int findMax(double a[], int months);
int findMin(double a[], int months);
void findPercent(double flights[],double delays[],double percentDelay[]);
void findAverage(double a[],int months);
void getData(string & airport, string & airline, double flights[], double delays[]);


const int months = 3;

int main(){
    
    string airline, airport;
    double flights[months];
    double delays[months];
    double percentDelay[months];
    double a[months];
    double avgflights, avgdelays;
    int minindex, mexindex, leastflightsindex, leastdelaysindex, maxindex;
    
    
    string m[months] = { "January","February", "March"};
    
    getData(airport, airline, flights, delays);
    
    
    
    //functions
    findAverage(a, months);
    findPercent(flights,delays,percentDelay);
    
    minindex=findMin(percentDelay,months);
    mexindex=findMax(percentDelay,months);

    maxindex=findMax(a,months);
    leastflightsindex=findMin(a, months);
    leastdelaysindex=findMin(a, months);

    
    
    cout << "The best month to fly is " << m[minindex] << " with " << percentDelay[minindex] << "% delays" << endl;
    cout << "The worst month to fly is " << m[mexindex] << " with " << percentDelay[mexindex] << "% delays" << endl;


//The two above work all the rest do not
//Max flights
    cout << "Most busy month is " << m[maxindex] << " with " << flights[maxindex] << " flights" << endl;
    
    
//least flights and least delays
    cout << "Least busy month is " << m[leastflightsindex] << " with " << flights[leastflightsindex] << " flights" << endl;
    cout << "Month with fewest delays is " << m[leastdelaysindex] << " with " <<delays[leastdelaysindex] << " delays" << endl;


    //I do not know what to call to get the average
    cout << "The average number of flights for " << months << " Months is " <<  << " with an " << endl << "average of "  <<  << " delays" << endl;
    
}    
     
     




     
void getData(string &airport, string &airline, double flights[], double delays[])
{
    
    cout << "Enter the airline: ";
    cin >> airline;
    cout << "Enter the airport: ";
    cin >> airport;
    cout << "Enter the flights and delays:" << endl;
    
    
    for (int i = 0; i<months; i++){
    cin >> flights[i] >> delays[i];
    }
    cout << airline << " at " << airport << ":" << endl;
} 

int findMin(double a[], int months)
{
    
    int index=0;
    for (int i =1; i<months; i++){
        if(a[i]<a[index]){
            index=i;
        }
        
    }
        return index;
}

int findMax(double a[], int months)
{
    
    int index=0;
    for (int i = 1; i<months; i++){
        if(a[i]>a[index]){
            index=i;
            
        }
        
    }

        return index;
}
     
void findPercent(double flights[], double delays[], double percentDelay[])
{ 
    for(int i=0; i<months; i++){
        percentDelay[i]=(delays[i]/flights[i])*100;
    }
    
}
//this is not working
void findAverage(double a[], int months){

    double avg =0;
    for(int i = 0; i<3; i++)
    {
       avg += a[i];
       
    }
    
    
    
}   

[2UD8vCM9]

int findMin(double a[], int months)
{
	int index = 0;
	for (int i = 1; i<months; i++) {
		if (a[i]<a[index]) 
		{
			index = i;
		}
	}
	return index;
}

int findMax(double a[], int months)
{
	int index = 0;
	for (int i = 1; i < months; i++)
	{
		if (a[i] > a[index])
		{
			index = i;
		}
	}
	return index;
}

double findAverage(double a[], int months) 
{
	double avg = 0;
	for (int i = 0; i < months; i++)
	{
		avg += a[i];
	}
	avg /= months; //Divide total sum by # of months
	return avg;
}

[booradley60]

Variable names like 'm' and 'a' are not good. I can't tell from their names what they're supposed to be representing. Whatever array a is, you just declare it and use it. You never actually initialize any of the data inside of it.

[Danky]

Ok I tried this:

double flights[months];
double delays[months];
double percentDelay[];
double array[months];
int avgindex;
avgindex=findAverage(array, months);
cout << "The average number of flights for " << months << " Months is " << flights[avgindex] << " with an " << endl << "average of " << delays[avgindex] << " delays" << endl;

double findAverage(double array[], int months){

double avg = 0;
for(int i = 0; i<months; i++)
{
avg += array[i];

}
avg/=months;
return avg;
}
But it only prints out the first user input of the array


Also, I cannot figure out why the max and min functions are not working. It seems like it is not comparing correctly.