How to delete duplicate vectors within a multidimensional vector?
- by David
I have a vector of vectors:
vector< vector<int> > BigVec;
It contains an arbitrary number of vectors, each of an arbitrary size. I want to delete not duplicate elements of each vector, but any vectors that are the exact same as another. I don't need to preserve the order of the vectors so I can sort etc..
It should be a really simple problem to solve but I'm new to this, my (not-working) best effort:
for (int i = 0; i < BigVec.size(); i++)
{
for (int j = 1; j < BigVec.size() ; j++ )
{
if (BigVec[i][0] == BigVec [j][i]);
{
BigVec.erase(BigVec.begin() + j);
i = 0; // because i get the impression deleting a
j = 1; // vector messes up a simple iteration through
}
}
}
I think there might be a solution using Unique(), but I can't get that to work either.
