Return the coordinates of every mark of 80 or more, using np.nonzero

NumPy · from where, select and clip

np.wherenp.selectnp.clipnp.nonzeroa[mask] = xnp.putmask

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Exercise 3

Return the coordinates of every mark of 80 or more, using np.nonzero.

your answer
stuck? the lesson behind it
where, select and clip
An if-statement over a whole array, without losing its shape.