public static void MergeAndRemoveDuplicatesInLinkedLists()
{
var obj = new CareerCupQnA();
var input = new List <List <int> >
{
new List <int> {
1, 2, 3, 4
},
new List <int> {
2, 5, 6, 7
},
new List <int> {
6, 9, 10, 11
},
};
obj.MergeAndRemoveDuplicatesInLinkedLists(input);
}