Python: Find all index positions of the maximum and minimum values in a given list

Python List: Exercise - 132 with Solution

Write a Python program to find all index positions of the maximum and minimum values in a given list of numbers.

Sample Solution-1:

Python Code:

def position_max_min(nums):
    max_val = max(nums)
    min_val = min(nums)
    max_result = [i for i, j in enumerate(nums) if j == max_val]
    min_result = [i for i, j in enumerate(nums) if j == min_val]
    return max_result,min_result

nums = [12,33,23,10,67,89,45,667,23,12,11,10,54]
print("Original list:")
print(nums)
result = position_max_min(nums)
print("\nIndex positions of the maximum value of the said list:")
print(result[0])
print("\nIndex positions of the minimum value of the said list:")
print(result[1])

Sample Output:

Original list:
[12, 33, 23, 10, 67, 89, 45, 667, 23, 12, 11, 10, 54]

Index positions of the maximum value of the said list:
[7]

Index positions of the minimum value of the said list:
[3, 11]

Flowchart:

Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:

Sample Solution-2:

• Use max() and list.index() to get the maximum value in the list and return its index.
• Use min() and list.index() to get the minimum value in the list and return its index.

Python Code:

def position_max_min(nums):
    return nums.index(max(nums)), nums.index(min(nums))
nums = [12,33,23,10,67,89,45,667,23,12,11,10,54]
print("Original list:")
print(nums)
result = position_max_min(nums)
print("\nIndex positions of the maximum value of the said list:")
print(result[0])
print("Index positions of the minimum value of the said list:")
print(result[1])

Sample Output:

Original list:
[12, 33, 23, 10, 67, 89, 45, 667, 23, 12, 11, 10, 54]

Index positions of the maximum value of the said list:
7
Index positions of the minimum value of the said list:
3

Flowchart:

Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:

Python Code Editor:

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