Question

How to merge two lists in C++

Answer 1

#include <iostream>
#include <list>

using std::cout;
using std::endl;
using std::list;

int main()
{
	list<int> lst1, lst2;

	for (int i = 0; i < 5; i++)
		lst1.push_back(i);
	for (int i = 5; i < 10; i++)
		lst2.push_back(i);

	for (auto e : lst1)
		cout << e << "  ";
	cout << endl;

	for (auto e : lst2)
		cout << e << "  ";
	cout << endl;

	lst1.merge(lst2);

	for (auto e : lst1)
		cout << e << "  ";
	cout << endl;

	return 0;
}


/*
run:

0  1  2  3  4
5  6  7  8  9
0  1  2  3  4  5  6  7  8  9

*/

 

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