how to resize vectors vector?

[wlijiu]

So somewhere, I got this code:

vector<vector<int> > items;

but how do i resize it, for example to items[5][5]?

[helios]

First you need to resize the outer vector, and then each of its elements.

[buffbill]

If you use push_back it will resize itself......this is the advantage of vectors over arrays

[Bazzy]

vectors have also a resize function ( http://www.cplusplus.com/reference/stl/vector/resize.html )