I have one_tensor (3,1) of values, say:
one_tensor = torch.tensor([[24],[36],[12]])
and index_tensor (3,1)  of indices, say:
index_tensor = torch.tensor([[0],[3],[2]])
I’d like to map the values of one_tensor to a third_tensor (3,4) of zeros:
third_tensor = torch.zeros(3,4)
using the indices of index_tensor so that third tensor ends up like this:
third_tensor = tensor([[24, 0, 0, 0], [0, 0, 0, 36], [0, 0, 12, 0]])
Is there a fast, efficient way to do this without manually iterating over each row?