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Challenge LinkedInLearning LinkedInLearning#2 - Converting Hexidecimals
Jupyter Notebook .ipynb with the step-by-step solution I found developing a factorial function. - Original Code Stub - Add Test Cases - Check for Valid Hexidecimals - Add For-Loops to check HD characters against the library - Add assignments for variables & ensure For-Loop returns result value when exited - Update ForLoop to retrieve HD values from the library & perform addition (validate results) - Update ForLoop to perform multiplication in multiples of 16 on HD values
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‎Solved-Challenges/03_06_Challenge_Solved.ipynb‎

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{
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"cells": [
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "0693f2c2-54cf-4b8a-b480-9aa4847622e4",
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"metadata": {},
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"outputs": [],
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"source": [
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"</> Code Challenge: Hex to Dec"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "536e914e-3c94-4678-8080-dd64804d65ff",
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"metadata": {},
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"outputs": [],
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"source": [
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"#Original Code Stub\n",
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"\n",
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"hexNumbers = {\n",
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" '0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9,\n",
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" 'A': 10, 'B': 11, 'C': 12, 'D': 13, 'E': 14, 'F': 15\n",
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"}\n",
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"\n",
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"# Converts a string hexadecimal number into an integer decimal\n",
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"# If hexNum is not a valid hexadecimal number, returns None\n",
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"def hexToDec(hexNum):\n",
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" pass"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 2,
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"id": "38e48fed-bdda-428f-808d-e8c94cd6a5a9",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"1A\n",
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"FFF\n",
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"1234\n"
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]
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}
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],
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"source": [
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"#Add return function to code stub w/ test values\n",
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"\n",
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"hexNumbers = {\n",
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" '0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9,\n",
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" 'A': 10, 'B': 11, 'C': 12, 'D': 13, 'E': 14, 'F': 15\n",
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"}\n",
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"\n",
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"def hexToDec(hexNum):\n",
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" return hexNum\n",
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"\n",
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"# Testing the function\n",
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"print(hexToDec('1A')) \n",
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"print(hexToDec('FFF')) \n",
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"print(hexToDec('1234'))"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 3,
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"id": "f60d62b3-7961-44b6-86a0-da958cb85371",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"1A\n",
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"FFF\n",
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"None\n"
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]
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}
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],
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"source": [
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"#Add logic for handling invalid hex over 3 values long\n",
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"\n",
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"hexNumbers = {\n",
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" '0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9,\n",
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" 'A': 10, 'B': 11, 'C': 12, 'D': 13, 'E': 14, 'F': 15\n",
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"}\n",
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"\n",
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"def hexToDec(hexNum):\n",
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" if len(hexNum) > 3:\n",
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" return None\n",
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" \n",
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" else:\n",
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" return hexNum\n",
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"\n",
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"# Testing the function\n",
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"print(hexToDec('1A')) \n",
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"print(hexToDec('FFF')) \n",
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"print(hexToDec('1234'))"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 5,
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"id": "0c32edd9-6f08-4f4d-9e8d-cadad9a3a702",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"True\n",
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"True\n",
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"None\n"
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]
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}
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],
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"source": [
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"#Add For-Loop that checks char against library & returns values\n",
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"\n",
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"hexNumbers = {\n",
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" '0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9,\n",
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" 'A': 10, 'B': 11, 'C': 12, 'D': 13, 'E': 14, 'F': 15\n",
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"}\n",
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"\n",
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"def hexToDec(hexNum):\n",
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" if len(hexNum) > 3:\n",
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" return None\n",
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" \n",
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" for char in hexNum:\n",
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" if char in hexNumbers:\n",
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" return True\n",
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" else:\n",
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" return None\n",
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" return hexNum\n",
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"\n",
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"# Testing the function\n",
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"print(hexToDec('1A')) \n",
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"print(hexToDec('FFF')) \n",
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"print(hexToDec('1234'))"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 7,
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"id": "2c076c74-d333-4a4f-baea-ab7e51a483dc",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"True\n",
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"True\n",
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"None\n"
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]
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}
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],
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"source": [
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"#Update For-Loop with variable assignments & result var\n",
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"\n",
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"hexNumbers = {\n",
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" '0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9,\n",
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" 'A': 10, 'B': 11, 'C': 12, 'D': 13, 'E': 14, 'F': 15\n",
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"}\n",
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"\n",
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"def hexToDec(hexNum):\n",
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" if len(hexNum) > 3:\n",
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" return None\n",
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" hexNum = hexNum.upper()\n",
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" decimal_value = 0\n",
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" for char in hexNum:\n",
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" if char in hexNumbers:\n",
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" return True\n",
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" else:\n",
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" return None\n",
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" return decimal_value\n",
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"\n",
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"# Testing the function\n",
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"print(hexToDec('1A')) \n",
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"print(hexToDec('FFF')) \n",
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"print(hexToDec('1234'))"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 10,
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"id": "51490f78-be25-49a9-8e39-8abdc4e8975c",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"11\n",
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"45\n",
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"None\n"
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]
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}
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],
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"source": [
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"#Check ForLoop math with addition hexdec values from library\n",
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"\n",
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"hexNumbers = {\n",
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" '0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9,\n",
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" 'A': 10, 'B': 11, 'C': 12, 'D': 13, 'E': 14, 'F': 15\n",
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"}\n",
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"\n",
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"def hexToDec(hexNum):\n",
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" if len(hexNum) > 3:\n",
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" return None\n",
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" hexNum = hexNum.upper()\n",
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" decimal_value = 0\n",
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" for char in hexNum:\n",
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" if char in hexNumbers:\n",
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" decimal_value = decimal_value + hexNumbers[char]\n",
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" else:\n",
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" return None\n",
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" return decimal_value\n",
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"\n",
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"# Testing the function\n",
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"print(hexToDec('1A')) \n",
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"print(hexToDec('FFF')) \n",
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"print(hexToDec('1234'))"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 11,
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"id": "680efa56-1c24-4e72-9182-646082cbfc75",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"26\n",
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"4095\n",
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"None\n"
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]
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}
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],
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"source": [
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"#Update For-Loop with the hexadecimal converter/formula\n",
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"\n",
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"hexNumbers = {\n",
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" '0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9,\n",
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" 'A': 10, 'B': 11, 'C': 12, 'D': 13, 'E': 14, 'F': 15\n",
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"}\n",
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"\n",
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"def hexToDec(hexNum):\n",
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" if len(hexNum) > 3:\n",
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" return None\n",
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" hexNum = hexNum.upper()\n",
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" decimal_value = 0\n",
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" for char in hexNum:\n",
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" if char in hexNumbers:\n",
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" decimal_value = decimal_value * 16 + hexNumbers[char]\n",
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" else:\n",
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" return None\n",
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" return decimal_value\n",
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"\n",
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"# Testing the function\n",
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"print(hexToDec('1A')) \n",
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"print(hexToDec('FFF')) \n",
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"print(hexToDec('1234'))"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3 (ipykernel)",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.12.5"
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}
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"nbformat": 4,
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}

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