Question

How to insert a vector into other vector at specific position in C++

Answer 1

#include <iostream> 
#include <iterator>
#include <vector>
#include <algorithm>

using std::vector;
using std::cout;  
using std::endl;

int main()
{
	vector<int> vec1{ 1, 2, 3, 4, 5 }, vec2{100, 200};
	vector<int>::iterator it = vec1.begin();
	
	advance(it, 3);

	std::insert_iterator< std::vector<int> > ins_it(vec1, it);
	
	std::copy(vec2.begin(), vec2.end(), ins_it);

	for (it = vec1.begin(); it != vec1.end(); it++)
		cout << *it << ' ';

	cout << endl;

	return 0;
}

/*
run:

1 2 3 100 200 4 5

*/

 

70+ SQL courses for beginners and professionals