#include "pch.h"
#include <iostream>
#include <vector>

using namespace std;

vector<char> v = { '1', '2', '3', '4', '5', '6', '7', '8' };
char buff;

void swap(int pos1, int pos2, int length) {

	for (int i = 0; i < length; i++) {
		buff = v[pos1 + i];
		v[pos1 + i] = v[pos2 + i];
	}
}

void swap_sections(int pos1, int pos2, int length) {
	if (pos2 - pos1 == length - pos2) {
		swap(pos1, pos2, pos2 - pos1);
	}

	else if (pos2 - pos1 > length - pos2) {
		swap(pos1, pos2, length - pos2);
		swap_sections(pos1 + length - pos2, pos2,length);
	}

	else if (pos2 - pos1 < length - pos2) {
		swap(pos1, pos1 + length - pos2, pos2 - pos1);
		swap_sections(pos1, pos2, pos1 + length - pos2);
	}


}

int main() {
	for (auto c : v) {
		cout << c;
	}
	cout << endl;
	swap_sections(0, 5, size(v));
	for (auto c : v) {
		cout << c;
	}
	return 0;
}