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)

# 3_4_selectionsort
# ALDS_1_2_B: Selection Sort
N = gets.to_i
a = gets.split.map(&:to_i)
# N = 6
# a = [5,6,4,2,1,3]

def selection_sort(n,a)
  count = 0
  a.each_with_index do |val,i|

    min_j = i
    i.upto(n-1) do |j|
      min_j = j if a[j] < a[min_j]
    end
    if min_j != i
      a[i],a[min_j] = a[min_j],a[i]
      count += 1
    end

  end
  puts a.join(' ')
  puts count
end
selection_sort(N,a)