If the array had been sorted in descending order initially, how many swaps would the Bubble Sort perform?
Question
If the array had been sorted in descending order initially, how many swaps would the Bubble Sort perform?
Solution
To determine the number of swaps that the Bubble Sort would perform if the array had been sorted in descending order initially, we can follow these steps:
- Initialize a variable called "swaps" to keep track of the number of swaps.
- Start a loop that iterates through the array from the first element to the second-to-last element.
- Within the loop, start another loop that iterates from the first element to the last element of the unsorted portion of the array.
- Compare each pair of adjacent elements in the inner loop.
- If the current element is greater than the next element, swap them and increment the "swaps" variable by 1.
- Continue this process until the inner loop reaches the end of the unsorted portion of the array.
- After the inner loop completes, check if any swaps were made in that iteration. If no swaps were made, it means the array is already sorted, and we can exit the outer loop.
- Repeat steps 2-7 until the outer loop reaches the end of the array.
- At the end of the sorting process, the value of the "swaps" variable will represent the total number of swaps performed.
In the case where the array is already sorted in descending order initially, the Bubble Sort algorithm would not perform any swaps. This is because the algorithm compares adjacent elements and swaps them only if they are in the wrong order. Since the array is already sorted in descending order, no swaps are needed to rearrange the elements. Therefore, the number of swaps performed would be 0.
Similar Questions
What is the array after the first pass of the Bubble Sort algorithm?
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