#include <vector>
#include <algorithm>

int main()
{
	typedef std::vector<int> Vec;
	Vec vecA;
	Vec vecB;

	// fill your data

	// sort
	std::sort(vecA.begin(), vecA.end());
	std::sort(vecA.begin(), vecA.end());


	// join
	Vec::iterator mergepoint = vecA.end();

	std::copy(vecB.begin(), vecB.end(), std::back_inserter(vecA));

	// merge
	std::inplace_merge(vecA.begin(), mergepoint, vecA.end());
}