Вложенные списки: определить индексы минимального и максимального элементов

from math import *
 
def f(k):
    return 12.4*sin(abs(k/2.1))-8.3*cos(1.2*k)
 
def g(n):
    return abs(cos(n/2.7))+9.1*sin(1.2*n+1)
 
arr= []
h = 1
for k in range (1,5):
    arr.append([])
    for n in range(1,5):
        c = n* f(k)+sin(k)*g(n)
        arr[k-1].append(c)
 
        print('% 10.4f' % arr[k-1][n-1], end=" ")
 
        if k < n:
            h *= arr [k-1][n-1]
    print()
minimum = min(min(arr))
maximum = max(max(arr))
print("Минимальный элемент",minimum)
print(arr.index(min(arr)))
print("Максимальный элемент",maximum)
print(arr.index(max(arr)))

print(f'Index of minimum:{a_list.index(min(a_list))}')
print(f'Index of maximum:{a_list.index(max(a_list))}')

def get_index(a_list: list, element: float) -> tuple:
    for x, a_l in enumerate(a_list):
        for y, elem in enumerate(a_l):
            if elem == element:
                return x, y
    return -1, -1
 
 
def get_max_or_min(func, a_list: list) -> float:
    return func([func(l) for l in a_list])
 
 
listik = [[9.6519, 4.0173, 0.7939, 7.2236],
          [23.7615, 31.0043, 40.8526, 61.1322],
          [20.8877, 39.2118, 57.9402, 78.2875],
          [4.7151, 23.1787, 39.4737, 47.0868]]
 
if __name__ == '__main__':
    min_element = get_max_or_min(min, listik)
    max_element = get_max_or_min(max, listik)
    print(f'Minimal element is {min_element}')
    print(f'Maximal element is {max_element}')
    min_tuple = get_index(listik, min_element)
    max_tuple = get_index(listik, max_element)
    print(f'Position of minimal element is {min_tuple}')
    print(f'Position of maximal element is {max_tuple}')

l = [
  [9.6519, 4.0173, 0.7939, 7.2236],
  [23.7615, 31.0043, 40.8526, 61.1322],
  [20.8877, 39.2118, 57.9402, 78.2875],
  [4.7151, 23.1787, 39.4737, 47.0868]
]
 
 
max_ = max(l[0])
max_ind = (0, l[0].index(max_))
min_ = min(l[0])
min_ind = (0, l[0].index(min_))
 
for i in range(1, len(l)-1):
  if max_ < max(l[i]):
    max_ = max(l[i])
    max_ind = (i, l[i].index(max_))
  if min_ > min(l[i]):
    min_ = min(l[i])
    min_ind = (i, l[i].index(min_))
  
print(max_, max_ind)
print(min_, min_ind)