Problem:
Selection Sort

Write a program of the Selection Sort algorithm which sorts a sequence A in ascending order. The algorithm should be based on the following pseudocode:

SelectionSort(A)
1 for i = 0 to A.length-1
2 mini = i
3 for j = i to A.length-1
4 if A[j] < A[mini]
5 mini = j
6 swap A[i] and A[mini]

Note that, indices for array elements are based on 0-origin.

Your program should also print the number of swap operations defined in line 6 of the pseudocode in the case where i ≠ mini.

Input

The first line of the input includes an integer N, the number of elements in the sequence.

In the second line, N elements of the sequence are given separated by space characters.

Output

The output consists of 2 lines.

In the first line, please print the sorted sequence. Two contiguous elements of the sequence should be separated by a space character.

In the second line, please print the number of swap operations.

Constraints

1 ≤ N ≤ 100

Sample Input 1

6
5 6 4 2 1 3

Sample Output 1

1 2 3 4 5 6
4

Sample Input 2

6
5 2 4 6 1 3

Sample Output 2

1 2 3 4 5 6
3

Solution in Ruby (judge verdict: Accepted)

def f
  n = gets.chomp.to_i
  a = gets.chomp.split.map(&:to_i)
  selection_sort(a, n)
end

def selection_sort(a,n)
  exchange_counts = 0
  for i in 0..n-1
    minj = i
    for j in i..n-1
      if a[j] < a[minj]
        minj = j
      end
    end
    if i != minj
      a[i], a[minj] = a[minj], a[i]
      exchange_counts += 1
    end
  end
  puts a.join(" ")
  puts exchange_counts
end

f