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Python Code Samples

Copy-ready Python snippets by topic and difficulty — short, focused, and runnable in the browser editor.

3 matches
Lists & loops easy

How to Find Local Maxima in a Python List

Return the indices of all local maxima in a numeric list, where a peak is an element greater than both its immediate neighbors.

local-maxima peaks list
Python
def find_peaks(numbers):
    """
    Return the indices of local maxima in a numeric list.
    A local maximum is an element greater than both its neighbors.
    """
    if len(numbers) < 3:
        return []
    
    peaks = []
    for i in range(1, len(numbers) - 1):
        if numbers[i] > numbers[i - 1] and number…
15 0 Open
Algorithms & data structures medium

Find Peak Element in Python Using Binary Search

A binary search solution that finds any peak element (an element strictly greater than its neighbors) in an unsorted array in O(log n) time.

binary-search peak array
Python
def find_peak_element(nums):
    left, right = 0, len(nums) - 1
    
    while left < right:
        mid = (left + right) // 2
        if nums[mid] > nums[mid + 1]:
            right = mid
        else:
            left = mid + 1
            
    return left

if __name__ == "__main__":
    test1 = [1, 2, 3, 1]
    tes…
18 0 Open
Production deployment patterns easy

How to Mock a Kubernetes Rolling Update with maxSurge in Python

Simulate a Kubernetes rolling update with maxSurge policy, tracking peak and final replica counts during roll transitions.

kubernetes rolling-update maxsurge
Python
from collections import deque

class RollingUpdateMaxSurge:
    def __init__(self, replicas, max_surge):
        self.replicas = replicas
        self.max_surge = max_surge
        self.available = replicas
        self.history = deque()

    def roll(self, desired_replicas):
        """
        Simulate a rolling upd…
13 0 Open

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Samples are quick reference — one concept per page. For step-by-step teaching, use our Python tutorials. To test yourself, try quizzes or coding challenges. Clean up style with the Python formatter.