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DS-1000 / 313 / How can I get get the position (indices) of the largest value in a…

Problem

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Problem:
How can I get get the position (indices) of the largest value in a multi-dimensional NumPy array `a`?
Note that I want to get the raveled index of it, in C order.
A:
<code>
import numpy as np
example_a = np.array([[10,50,30],[60,20,40]])
def f(a = example_a):
    # return the solution in this function
    # result = f(a)
    ### BEGIN SOLUTION

library

Numpy

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Source and history

upstream_id / Original problem ID
313
task_id
b2313959-62d8-5d7d-9c04-5b1c9d753784
task_key
default--test--313
task_revision_id
1
config / split
default / test

Official source

initial import