In selection sort, after each pass through the array, what is guaranteed about the elements at the beginning of the array?a.They are in reverse orderb.They are randomly rearrangedc.They are sortedd.They remain unchanged
Question
In selection sort, after each pass through the array, what is guaranteed about the elements at the beginning of the array?a.They are in reverse orderb.They are randomly rearrangedc.They are sortedd.They remain unchanged
Solution
The answer is c. They are sorted.
Selection sort works by dividing the array into a sorted and an unsorted region. The sorted region is built up from left to right at the front (beginning) of the array. After each pass through the array, the next smallest (or largest, depending on the ordering) element is selected and moved to the sorted region. Therefore, after each pass, the elements at the beginning of the array are guaranteed to be in their final sorted order.
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