JuniorTheoryCommon

What happens when this program is compiled and run (lines separated by spaces)?

int[] nums = [4, 8, 15];
for (int i = 1; i <= nums.Length; i++)
{
    Console.WriteLine(nums[i]);
}

8 15, then an IndexOutOfRangeException

Expecting 4 8 15: indexes start at 0, so a loop from i = 1 skips nums[0], and i <= nums.Length takes it on to index 3, past the end.
Expecting a 0 past the end or a compile error: C# checks every index when the program runs, and index 3 stops it with an IndexOutOfRangeException.

JuniorTheoryCommon

int[] nums = [4, 8, 15];
for (int i = 1; i <= nums.Length; i++)
{
    Console.WriteLine(nums[i]);
}

8 15, then an IndexOutOfRangeException

Expecting 4 8 15: indexes start at 0, so a loop from i = 1 skips nums[0], and i <= nums.Length takes it on to index 3, past the end.
Expecting a 0 past the end or a compile error: C# checks every index when the program runs, and index 3 stops it with an IndexOutOfRangeException.