Multiply a Row X35644
Write a function prod_row(i, m) that receives the index i of one row of a matrix of int’s m and returns the product of all the integers in that row. The matrix of int’s is represented as a tuple of rows, each row being, in turn, a tuple of int’s. If m has n rows, we are guaranteed that 0 ≤ i < n.
Observation
Observe that 0 ≤ i < n implies that the tuple m is nonempty, but nothing else.
Sample session
>>> prod_row(1, ((8, 0, 2, -1), (4, 3, 2, 1), (10, 11, -11, -10))) 24 >>> prod_row(1, ((8, 0, 2, -1), (4, 3, 2, 1), (10, 11, -11, -10))) + prod_row(2, ((8, 0, 2, -1), (4, 3, 2, 1), (10, 11, -11, -10))) 12124 >>> prod_row(0, ((8, 0, 2, -1), (4, 3, 2, 1), (10, 11, -11, -10))) 0
Information
- Author
- José Luis Balcázar
- Language
- English
- Official solutions
- Python
- User solutions
- Python