A program sums elements in an array; if the loop invariant 'sum of elements up to index i' is maintained, which consequence follows?

💡 Explanation

If the loop invariant is maintained, the partial sum is correctly updated in each iteration; because each element contributes correctly to the sum, the final result is correct. Therefore, the program computes the correct sum, rather than failing with errors which might happen if the invariant is not maintained.

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