Why do arrays start at index 0?
It relates to memory addressing. The index represents the memory offset from the starting position of the array. The first element has an offset of 0.
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More FAQs in Common Off-By-One Errors in For Loops
It is a logical bug where a loop boundary is miscalculated, causing the loop to execute one time too many or one time too few.
Always ensure your loop condition uses strictly less than (<) the array's length, rather than less than or equal to (<=).
Your code will run without crashing, but it will skip the final element, resulting in an incorrect output or a failed test case.
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