Common elements between two lists not using sets in Python
- by Thomas
I want count the same elements of two lists. Lists can have duplicate elements, so I can't convert this to sets and use & operator.
a=[2,2,1,1]
b=[1,1,3,3]
set(a) & set(b) work
a & b don't work
It is possible to do it withoud set and dictonary?