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Consider an array with 6 elements starting with index 0 given below
20, 10, 9, 40, 21, 19
Find the element at index 5 after 1st iteration if bubble sort is applied on a given set of data?
- a)19
- b)20
- c)21
- d)40
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Consider an array with 6 elements starting with index 0 given below20...
Bubble sort, sometimes referred to as sinking sort, is a simple sorting algorithm that repeatedly steps through the list, compares adjacent pairs and swaps them if they are in the wrong order. The pass through the list is repeated until the list is sorted.
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In 1st iteration:
STEPS
20 > 10 then swap
Array: 10, 20, 9, 40, 21, 19
20 > 9 then swap
Array: 10, 9, 20, 40, 21, 19
20 < 40="" no="" />
Array: 10, 9, 20, 40, 21, 19
40 > 21 then swap
Array: 10, 9, 20, 21, 40, 19
40 > 19 then swap
Array: 10, 9, 20, 21, 19, 40
At 5th index, element 40 is present
Most Upvoted Answer
Consider an array with 6 elements starting with index 0 given below20...
Explanation:
Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order. This process is repeated until the entire list is sorted.
Let's understand how bubble sort works and determine the element at index 5 after the 1st iteration.
Given Array:
20, 10, 9, 40, 21, 19
First Iteration:
In the first iteration of bubble sort, we compare the adjacent elements and swap them if they are in the wrong order. After each iteration, the largest element moves to the end of the array.
Step 1: Comparing 20 and 10
- As 20 is greater than 10, we swap the elements.
- Array becomes 10, 20, 9, 40, 21, 19
Step 2: Comparing 20 and 9
- As 20 is greater than 9, we swap the elements.
- Array becomes 10, 9, 20, 40, 21, 19
Step 3: Comparing 20 and 40
- As 20 is smaller than 40, no swap is required.
- Array remains the same.
Step 4: Comparing 40 and 21
- As 40 is greater than 21, we swap the elements.
- Array becomes 10, 9, 20, 21, 40, 19
Step 5: Comparing 40 and 19
- As 40 is greater than 19, we swap the elements.
- Array becomes 10, 9, 20, 21, 19, 40
After the first iteration, the largest element 40 moves to the last position in the array.
Element at Index 5:
Since the array has 6 elements, the index ranges from 0 to 5. After the first iteration of bubble sort, the element at index 5 is 40.
Therefore, the correct answer is option 'D' (40).
Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order. This process is repeated until the entire list is sorted.
Let's understand how bubble sort works and determine the element at index 5 after the 1st iteration.
Given Array:
20, 10, 9, 40, 21, 19
First Iteration:
In the first iteration of bubble sort, we compare the adjacent elements and swap them if they are in the wrong order. After each iteration, the largest element moves to the end of the array.
Step 1: Comparing 20 and 10
- As 20 is greater than 10, we swap the elements.
- Array becomes 10, 20, 9, 40, 21, 19
Step 2: Comparing 20 and 9
- As 20 is greater than 9, we swap the elements.
- Array becomes 10, 9, 20, 40, 21, 19
Step 3: Comparing 20 and 40
- As 20 is smaller than 40, no swap is required.
- Array remains the same.
Step 4: Comparing 40 and 21
- As 40 is greater than 21, we swap the elements.
- Array becomes 10, 9, 20, 21, 40, 19
Step 5: Comparing 40 and 19
- As 40 is greater than 19, we swap the elements.
- Array becomes 10, 9, 20, 21, 19, 40
After the first iteration, the largest element 40 moves to the last position in the array.
Element at Index 5:
Since the array has 6 elements, the index ranges from 0 to 5. After the first iteration of bubble sort, the element at index 5 is 40.
Therefore, the correct answer is option 'D' (40).
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Consider an array with 6 elements starting with index 0 given below20, 10, 9, 40, 21, 19Find the element at index 5 after 1st iteration if bubble sort is applied on a given set of data?a)19b)20c)21d)40Correct answer is option 'D'. Can you explain this answer?
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