Problem

7/12

Zero array elements

Theory Click to read/hide

Zero array elements
 
Function nonzero(V) 
The result is a tuple of arrays. Each such array corresponds to a separate axis of the original array and contains indices with non-zero elements in this array.
V - a NumPy array or array-like object.
Returns a Python tuple (tuple) - tuple with arrays of indexes of non-zero elements of the original array V.
 
Function count_nonzero(V) 
This function is based on the built-in  __bool__() method of Python objects that checks whether they are true. It follows that the  count_nonzero() function is actually able to work not only with numbers, but also with any objects that can be either true or false.
V - a NumPy array or array-like object.
The function returns the number of non-zero array elements along the specified axis.

Problem

Given a vector Z. 

1) Write to the variable NonZerros indices of non-zero elements.
2) Write the  variable Count_NonZerros number of non-zero elements.

Add only 2 lines to the program. You don't need to input or output anything. The vector Z has already been created.



time 1000 ms
memory 256 Mb
Rules for program design and list of errors in automatic problem checking

Teacher commentary

Insert the missing code snippets
Python
Write the program below 
import numpy as np

Z = np.array(list(map(int, input().split()))) 
print(NoneZerros[0])
print(Count_NoneZerros)

     

Program check result

To check the solution of the problem, you need to register or log in!