how to find size of int array in c++

To find the size of an int array in C++, you can use the sizeof operator. Here are the steps to achieve this:

1. Declare and initialize your int array.
2. Use the sizeof operator to determine the size of the array.
3. Divide the total size of the array by the size of a single element to get the number of elements in the array.

Here is an example:

int main() {
    int arr[] = {1, 2, 3, 4, 5};
    int size = sizeof(arr) / sizeof(arr[0]);
    return 0;
}

In this example, we declare and initialize an int array called arr with 5 elements. We then use the sizeof operator to determine the total size of the array in bytes. We divide this by the size of a single element, sizeof(arr[0]), which gives us the number of elements in the array.

The result, stored in the size variable, will be 5, indicating that the array arr has 5 elements.

By using this method, you can find the size of any int array in C++.