如何用给定的值列表和索引列表填充 python 中的数组？

Question

What would be the simplest (fastest) way to take as input the following:

M=np.zeros((2,5))  
values=[a,b,c] #a,b and c are integers  
indices=[(1,2,4),(0,2,4)]

and have as an output:

M=[[0,a,b,0,c],[a,0,b,0,c]]

Answer 1

try indexing

M = np.zeros((2,5))
values = [7,8,9]   
indices = np.array([[1,2,4],[0,2,4]])

M[np.arange(M.shape[0])[:,None],indices] = values

print(M)

[[0. 7. 8. 0. 9.]
 [7. 0. 8. 0. 9.]]