Selection Sort Aizu - ALDS1_2_B
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
code
/*
/*
^....0
^ .1 ^1^
.. 01
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^ 1 ^ ^0.1
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00 ^ 11^ ^1. .1^
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.^ ^0..1
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^ 00. ^^0.^
1 ^ 0 ^^110.^
0. 0 ^ ^^^10.01
^^ 010^ 1 1 ^^^1110.1
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0^ 10 . 01 ^^ ^^ ^^^1111^1.^ ^^^
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10 00 11 ^^^^^ 1 0 1.
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0 ^. 0 ^0 1 ^^^ 0.
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..^ 1. ^. 1.
0 1 ^. 00 00 .^
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.^ ^ 1 1^^ ^.^
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*/
// Virtual_Judge —— Selection Sort Aizu - ALDS1_2_B .cpp created by VB_KoKing on 2019,04,28,18.
/* Procedural objectives：
Variables required by the program:
Procedural thinking：
Functions required by the program:
*/
/* My dear Max said：
"I like you,
So the first bunch of sunshine I saw in the morning is you,
The first hurricane that passed through your ear is you,
The first star you see is also you.
The world I see is all your shadow."
FIGHTING FOR OUR FUTURE！！！
*/
#include <iostream>
#include <cstring>
using namespace std;
int ans = 0, array[100],mini;
void SelectionSort(int A[], int n) {
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) ans++;
}
}
int main() {
int n;
cin >> n;
memset(array, 0, sizeof(array));
for (int i = 0; i < n; i++)
cin >> array[i];
SelectionSort(array, n);
for (int i = 0; i < n; i++) {
cout << array[i];
if (i != n - 1) cout << ' ';
}
cout << endl << ans << endl;
return 0;
}
