arrays subtracting numbers

[abaz01]

hello people, im trying to write this program that subtracts 2 from each element of the array, the program works fine but it gives me a wrong answer for the last element. plz help

#include<iostream>

using namespace std;

int main()
{
    int x=0;
    int myArray[10];

    myArray[0]=30;



    while(x<=10)
    {

        myArray[x+1] = myArray[x]-2;

        cout << myArray[x]<< endl;

        x++;

    }

    return 0;
}

heres the program output, notice the last number.

30
28
26
24
22
20
18
16
14
10

[Stewbond]

I'm surprised your program doesn't crash.

You're going out of bounds. Since your array is 10 long, the largest index you can use is 9. so cout << myArray[10] <<endl; has a good chance of crashing your program.

Now look at your while loop: For the last iteration x is 10. Let's see what this will look like:

myArray[11] = myArray[10]-2;
cout << myArray[10] << endl;

To fix, change line 14 to:
while(x < 9)

[abaz01]

@Stewbond i tried that before and it only outputs 9 elements, (up to 14)

i also tried while(x<=9) it gives me the same output as before(last element is 10)