Challenge No. 527: Convert every digit from right to left in the base of its index + 1 reading index 1, 2.
Solved using: Python.
SEQUENCE
Generates a sequence of numbers in an array in Excel.
Next Three Palindromes
Challenge No. 526: A palindrome number is that which is same even when read backwards.
Solved using: Python in Excel.
Exclude Weekend Leave Days
Challenge No. 234: Find the total leaves taken by the employees.
Solved using: Python.
Complete Square by X Placeholder
Challenge No. 524: Fill in the digit marked as X to make the number a perfect square.
Solved using: R.
Build Alphabet Staircase
Challenge No. 523: Make the staircase of alphabets.
Solved using: Excel VBA.
Sum of Odd Numbers Sequence
Challenge No. 522: Check if a number can be expressed as a sum of consecutive odd numbers.
Solved using: Python in Excel.
List Dates with Unique Digits
Challenge No. 521: List all dates containing unique digits between 1900-01-01 to 2999-12-31.
Solved using: Python in Excel.
Align Rowwise Data
Challenge No. 520: Align the data as given in answer expected.
Solved using: Python in Excel.
Repeat Rows Until Next Date
Challenge No. 232: Repeat a row till the next date.
Solved using: Python in Excel.
Matching Digit Sums
Challenge No. 519: Find first 25 numbers starting with two digits where sum of individual digits of (Number = Square of Number = Cube of Number)
Ex.
Solved using: Python.