Why do we initialize minimum variables to infinity?
If you initialize 'min' to 0 and the array contains only positive numbers, the condition (current < min) will never trigger, and 0 will incorrectly be returned.
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More FAQs in Finding the Second Smallest Element
The structural logic is identical. The only differences are initializing variables to very large numbers instead of very small ones, and checking for < instead of >.
In Java, use Integer.MAX_VALUE. In C++, use INT_MAX from the <climits> library. In Python, use float('inf').
Yes. When a new absolute minimum is found, the previous minimum is 'demoted' to the second minimum position.
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