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Note that the array was sorted beforehand, so that considering differences of consecutive elements is all we need to check to find the minimum difference.
No point in checking the difference between i and i+2 if we know the difference between i and i+1 is definitely less.
Minimum Absolute Difference in an Array
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Note that the array was sorted beforehand, so that considering differences of consecutive elements is all we need to check to find the minimum difference. No point in checking the difference between i and i+2 if we know the difference between i and i+1 is definitely less.