C Array Initialization Methods

1. Assign values using loops.

int arr[5];
for (int i = 0; i < 5; i++) {
    arr[i] = i;
}

1. Assign values using static initialization:

int arr[5] = {1, 2, 3, 4, 5};

1. Assign values using the memset function.

int arr[5];
memset(arr, 0, sizeof(arr));

1. Assign values using pointers.

int arr[5];
int *ptr = arr;
for (int i = 0; i < 5; i++) {
    *ptr++ = i;
}