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Python: Strange sort of list of numbers

Python Programming Puzzles: Exercise-97 with Solution

Write a Python program to find the following strange sort of list of numbers: the first element is the smallest, the second is the largest of the remaining, the third is the smallest of the remaining, the fourth is the smallest of the remaining, etc.

Input:
[1, 3, 4, 5, 11]
Output:
[1, 11, 3, 5, 4]

Input:
[27, 3, 8, 5, 1, 31]
Output:
[1, 31, 3, 27, 5, 8]

Input:
[1, 2, 7, 3, 4, 5, 6]
Output:
[1, 7, 2, 6, 3, 5, 4]

Pictorial Presentation:

Python: Strange sort of list of numbers.

Sample Solution:

Python Code:

#License: https://bit.ly/3oLErEI

def test(nums):
    if len(nums) < 2:
        return nums
    result = []
    for i in range(len(nums)//2):
        result.append(min(nums))
        nums.remove(min(nums))
        result.append(max(nums))
        nums.remove(max(nums))
    if len(nums) > 0:
        result.append(nums[0])
    if len(result) < 2*len(nums):
        result.extend(nums[len(result) // 2 + 1:len(result) // 2 + 1 + len(nums) - len(result)])
    return result
  
nums = [1, 3, 4, 5, 11]
print("Original list of numbers:")
print(nums)
print("Strange sort of list of said numbers:")
print(test(nums))
nums = [27, 3, 8, 5, 1, 31]
print("\nOriginal list of numbers:")
print(nums)
print("Strange sort of list of said numbers:")
print(test(nums))
nums = [1, 2, 7, 3, 4, 5, 6]
print("\nOriginal list of numbers:")
print(nums)
print("Strange sort of list of said numbers:")
print(test(nums))

Sample Output:

Original list of numbers:
[1, 3, 4, 5, 11]
Strange sort of list of said numbers:
[1, 11, 3, 5, 4]

Original list of numbers:
[27, 3, 8, 5, 1, 31]
Strange sort of list of said numbers:
[1, 31, 3, 27, 5, 8]

Original list of numbers:
[1, 2, 7, 3, 4, 5, 6]
Strange sort of list of said numbers:
[1, 7, 2, 6, 3, 5, 4]

Flowchart:

Flowchart: Python - Strange sort of list of numbers.

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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Python: Tips of the Day

Clamps num within the inclusive range specified by the boundary values x and y:

Example:

def tips_clamp_num(num,x,y):
  return max(min(num, max(x, y)), min(x, y))
print(tips_clamp_num(2, 4, 6))
print(tips_clamp_num(1, -1, -6))

Output:

4
-1