Challenge No. 183: List Tetradic numbers from column A.
Solved using: Python in Excel.
MID
Extracts a substring from a text string at a given position in Excel.
Remove Consecutive Duplicates
Challenge No. 179: If a character appears consecutively, then remove all consecutive characters other than first.
Solved using: Excel VBA.
Route Cipher Encrypt
Challenge No. 178: Route Cipher
Encrypt the given Strings.
Solved using: Power Query.
Common Digits with Frequency
Challenge No. 177: Find the common digits between Number1 and Number2 if the occurrence frequency of a digit is same in both Number1 and Number2 and occurrence frequency of that digit > 1.
Solved using: Power Query (List.Transform).
XOR Cipher for Message
Challenge No. 173: This time, in step 3 in place of adding both the numbers, we need to do Bitwise XOR operation.
Solved using: Power Query (List.Transform).
Find Missing Alphabets
Challenge No. 172: Find the missing English Alphabets from First Ladies column.
Solved using: Power Query.
Pad In The Middle!
Challenge No. 125: For the IDs in the table, insert zeros between the text and numbers to ensure that each ID has exactly 6 characters.
Solved using:Excel (CONCAT, ISNUMBER, LAMBDA), Google Sheets, Power Query (Text.Repeat, Table.AddColumn), Python, Python in Excel, and R.
Uppercase Position Finder
Challenge No. 168: Find the positions of uppercase letters and separate them by dashes.
Solved using: Excel VBA.
Generate First Disarium List
Challenge No. 164: A Disarium number is that number where sum of each digit raised to the power of its position in the number is equal to number itself.
Solved using: Python in Excel.
Symbol Replace by Frequency
Challenge No. 163: If an alphabet appears once in a word, replace it with a “?”.
Solved using: Power Query (Table.AddColumn).