#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
 
void Show(vector<int> &v)
{
	vector<int> :: iterator it = v.begin();
	while (it != v.end())
	{
		cout<<*it<<" ";
		it++;
	}
	cout<<endl;
 
}
 
 
int main() 
{
	vector<int> v1,v2;
	for (int i=0;i<10;i++) v1.push_back(i);
	for (int i=0;i<5;i++) v2.push_back(i+10);
	vector<int>().swap(v1);
	Show(v1);
	Show(v2);
	cout<<v1.size()<<" "<<v1.capacity()<<endl;
	cout<<v2.size()<<" "<<v2.capacity()<<endl;
 
 
}

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