How To Access Numpy Array With A Set Of Indices Stored In Another Numpy Array?

I have a numpy array which stores a set of indices I need to access another numpy array. I tried to use a for loop but it doesn't work as I expected. The situation is like this: &g

Solution 1:

Convert it to a tuple:

>>> a[tuple(c[0])]
1

Because list and array indices trigger advanced indexing. tuples are (mostly) basic slicing.

Solution 2:

Index a with columns of c by passing the first column as row's index and second one as column index:

In [23]: a[c[:,0], c[:,1]]
Out[23]: array([1, 2])