How to initialize vector>

Question

Is there a way to do this initialization of my vector of unordered maps in one line?

vector<unordered_map<int,int>> lookup;
for (int i = 0; i < vector_size; i++)
{
    unordered_map<int, int> map;
    lookup.push_back(map);
}

Thanks, I actually just named the variable wrong. I needed the size to be vector_size+1. Will fix it. — Crusader370, Jun 17 '20 at 11:45

score 0 · Accepted Answer · answered Jun 17 '20 at 05:33

0

vector<unordered_map<int, int>> lookup(vector_size);

Syntax - vector<container or data_type> vector_name(size, initial_value)

answered Jun 17 '20 at 05:33

abhiarrathore

Thanks. I guess I didn't understand that the maps will be automatically created if I omit the initial value. – Crusader370 Jun 17 '20 at 11:58

1 Answers1