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
#include <iostream> #include <algorithm> using namespace std; const int MAX = 110; int a[MAX]; int sum; void SelectionSort(int a[], int n) { int mini; for(int i = 0; i < n; ++ i) { mini = i; for(int j = i; j < n; ++ j) { if(a[j] < a[mini]) { mini = j; } } swap(a[i], a[mini]); if(i != mini) { sum ++; } } } int main() { int n; cin >> n; for(int i = 0; i < n; ++ i) { cin >> a[i]; } SelectionSort(a, n); for(int i = 0; i < n; ++ i) { if(i == n - 1) cout << a[i]; else cout << a[i] << " "; } cout << endl; cout << sum << endl; return 0; }