Challenge No. 143: List the numbers which are Harshad number (also known as Niven number or Multidigital number).
Solved using: Python in Excel.
Add Index Column! Part 2
Challenge No. 116: Add an index column to the question table, with a separate counter for each stock.
Solved using:Excel (CHOOSECOLS, CHOOSEROWS, COLUMN), Google Sheets, Power Query (List.Alternate, Table.AlternateRows, Table.Column), Python, Python in Excel, and R.
Grid Sum Generation
Challenge No. 142: Generate the result grid which is the sum of input grid.
Solved using: Python in Excel.
Next Palindrome Number
Challenge No. 141: Palindrome number is that which is same even when read backwards.
Solved using: Python in Excel.
Populate Start & End Date from a month name
Challenge No. 35: Populate Project Start & End Dates Given Start Month & Duration Assume Start (1st of Month) & End (Last day of Month)
Dynamic array function allowed but Extra marks for Legacy solutions or PowerQuery Solution.
Solved using: R.
Calculate financial year running totals
Challenge No. 39: Calculate Running Total for all individuals.
Solved using: Python in Excel.
Common Letters Sorted
Challenge No. 140: List the common letters between Word1 and Word2 and sort them alphabetically.
Solved using: Power Query (List.Distinct, Table.AddColumn).
Multi Replacement!
Challenge No. 115:
Replace “q” and “000” in the Product ID and Customer ID columns with “-“.
Solved using:Excel (HSTACK, LAMBDA, LET), Google Sheets, Power Query (Text.Replace, Table.ReplaceValue, Table.TransformColumns), Python, Python in Excel, R, SQL, and VBA.
Vowel End and Start Words
Challenge No. 139: List those sentences which contain any pair of words where first word ends with vowel and next word starts with vowel.
Solved using: Power Query.
Top Initial Letters Count
Challenge No. 138: Find the top 5 highest occurring starting alphabets of words in US Presidents columns.
Solved using: Python in Excel.