LRU cache

jamiedubois168 22.05.2026 11:20

LRU cache

My first Python project

utils.py

def caesar_cipher(text, shift=3):
    result = ""
    for ch in text:
        if ch.isalpha():
            base = ord("A") if ch.isupper() else ord("a")
            result += chr((ord(ch) - base + shift) % 26 + base)
        else: result += ch
    return result

print(caesar_cipher("Hello World"))

app.py

class Node:
    def __init__(self, val):
        self.val = val
        self.next = None

class LinkedList:
    def __init__(self):
        self.head = None
    def append(self, val):
        if not self.head:
            self.head = Node(val)
            return
        cur = self.head
        while cur.next: cur = cur.next
        cur.next = Node(val)
    def display(self):
        cur = self.head
        while cur:
            print(cur.val, end=' ')
            cur = cur.next
        print()

ll = LinkedList()
ll.append(1); ll.append(2); ll.append(3)
ll.display()

config.py

def bubble_sort(arr):
    n = len(arr)
    for i in range(n):
        for j in range(0, n-i-1):
            if arr[j] > arr[j+1]: arr[j], arr[j+1] = arr[j+1], arr[j]
    return arr

print(bubble_sort([5, 3, 8, 1, 2]))

LRU cache

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