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Python – Minimum element indices

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  • Last Updated : 14 Jan, 2020

Sometimes, while working with Python lists, we can have a problem in which we intend to find the position of minimum element of list. This task is easy and discussed many times. But sometimes, we can have multiple minimum elements and hence multiple minimum positions. Let’s discuss a shorthand to achieve this task in this case.

Method : Using min() + enumerate() + list comprehension
In this method, the combination of above functions is used to perform this particular task. This is performed in two steps. In 1st, we acquire the minimum element and then access the list using list comprehension and corresponding element using enumerate and extract every element position equal to minimum element processed in step 1.

# Python3 code to demonstrate working of
# Minimum element indices
# Using list comprehension + min() + enumerate()
# initializing list
test_list = [2, 4, 6, 8, 2, 2]
# printing list
print("The original list : " + str(test_list))
# Minimum element indices
# Using list comprehension + min() + enumerate()
temp = min(test_list)
res = [i for i, j in enumerate(test_list) if j == temp]
# Printing result
print("The Positions of minimum element : " + str(res))

Output :

The original list : [2, 4, 6, 8, 2, 2]
The Positions of minimum element : [0, 4, 5]

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