Consider the following version of Bubble Sort:
for (int i = 0; i < n; i++) { for (int j = 0; j < n - 1; j++) { // Swap adjacent elements if they are in decreasing order if (a[j] > a[j + 1]) { swap(a[j], a[j + 1]); } } }
Given an array of integers, sort the array in ascending order using the Bubble Sort algorithm above. Once sorted, print the following three lines:
Array is sorted in numSwaps swaps.
, where is the number of swaps that took place.First Element: firstElement
, where is the first element in the sorted array.Last Element: lastElement
, where is the last element in the sorted array.
Hint: To complete this challenge, you must add a variable that keeps a running tally of all swaps that occur during execution.
Example
swap a 0 [6,4,1] 1 [4,6,1] 2 [4,1,6] 3 [1,4,6]
The steps of the bubble sort are shown above. It took swaps to sort the array. Output is:
Array is sorted in 3 swaps. First Element: 1 Last Element: 6
Function Description
Complete the function countSwaps in the editor below.
countSwaps has the following parameter(s):
- int a[n]: an array of integers to sort
Prints
Print the three lines required, then return. No return value is expected.
Input Format
The first line contains an integer, , the size of the array .
The second line contains space-separated integers .
Constraints
Output Format
Sample Input 0
STDIN Function ----- -------- 3 a[] size n = 3 1 2 3 a = [1, 2, 3]
Sample Output 0
Array is sorted in 0 swaps. First Element: 1 Last Element: 3
Explanation 0
The array is already sorted, so swaps take place.
Sample Input 1
3 3 2 1
Sample Output 1
Array is sorted in 3 swaps. First Element: 1 Last Element: 3
Explanation 1
The array is not sorted, and its initial values are: . The following swaps take place:
At this point the array is sorted and the three lines of output are printed to stdout.