//this is our funcion to display the content of te array.To accept the array we want to send here from main() we must initialize a new array so the program knows what type of information we're talking about, and new int
void display(int a[], int s)
{
     //we go through the i (0) till s(size of array, 5) moving i for one up each time
     for (int i = 0; i < s; i++)
     {
          cout << a[i] << " " << endl;            //we display the array (a is array and i is its index, from a[0] to a[4] -> because it counts from o not from one
     }
     cout << endl;
}
 
//we input the our array and its size
void sort(int a[], int s)
{
     //we're going to use bubblesort in this example.bubblesort is something like this: imagine a row of number verticaly, it checks from the bottom up two numbers and put the smaller our higher and it does that till the numbers are sorted.I call it passing or checking (I'm not good at english) how many times it will compare two numbers.Now we have 5 numbers and that's four checkings (comparison), that's why we have to do s - 1, the number of numbers minus 1
     for (int pass = 0; pass < s -1; pass)
     {
          for (int i = 0; i < s - 1; i++)
          {
               //this is where we compare two numbers, if the first number is bigger then the next number then change them (call change function)
               if (a[i] > s[i + 1])
                    change(a[i], a[a + 1]);
          }
     }
}
 
//why &? because when we specify & we make the value keep the new value and return that way
void change(int& first, int& second)
{
     int temp = first;                     //we store the first number into temporary int
     first = second;                     //then we put the content of the second number to the first one (first one gets the value of second)
     second = temp;                   //and now we put the value of temp (which was formerly first) to second and the numbers are changes
}
 
int main()
{
     const int size = 5;                               //this is a size of the array
     int array[size] = {34, 23, 12, 3, 67};      //we make an array of 5 numbers here we are going to sort later
 
     cout << "Data before sorting: ";
     display(array, size);                            //we call a function to display the content of an array with two arguments.First one is our array and the second one is the size of the array
 
     sort(array, size);
 
     cout << "Data after sorting: ";
     display(array, size);
 
     return 0;
}

for (int i; i < 20; i++)
{
    cout << a[i] << '\n';
}

#include <iostream>
using namespace std;

int main()
{
   int array[] = {10,20,30,40,50};
   for ( int i = 0; i < 5; ++i )
   {
      cout << "array[" << i << "] = " << array[i] << '\n';
   }
   return 0;
}

/* my output
array[0] = 10
array[1] = 20
array[2] = 30
array[3] = 40
array[4] = 50
*/

#include <iostream>
 
void display(int arr[], int size);
 
int main()
 
{
			using namespace std;
			//int arr[13] = {80, 127, 120, 42, 115, 125, 120, 49, 126, 42, 115, 126, 73};
const int size = 13;
int arr[size] = {80, 127, 120, 42, 115, 125, 120, 49, 126, 42, 115, 126, 73};
sort(arr, size);
			cout << "Display numbers in the array" << endl;
			for(int i=0; i < size; i++)
			cout << " Integer [arr]: " << arr[i] << endl;
 
			//Calculate the average value
			double total = 0.0;
			for(int i = 0; i < 13; i++)
				total += arr[i];
			double ave = total / 13;
 
			//report the results
			cout << " Average value = " << ave << endl;
 
			//Print numbers above the average
			cout << "Display number above average" << endl;
			for(int i=0; i < 13; i++)
				if(arr[i] > ave)
					cout << " Integer [arr]: " << arr[i] << endl;
			//Print numbers below the average
			cout << "Display number below average" << endl;
			for(int i=0; i < 13; i++)
				if(arr[i] < ave)
				cout << " Integer [arr]: " << arr[i] << endl;
			cout << "Display characters for the array" << endl;
			for(int i=0; i < 13; i++)
				cout << (char)(arr[i]-10);
 
 
cin.get();
 return 0;
}