Challenge No. 422: Revised Julian Calendar Leap Year Rules
1.
Solved using: Python in Excel.
SEQUENCE
Generates a sequence of numbers in an array in Excel.
Stack Matrix Diagonals in Rows
Challenge No. 421: Stack the diagonals read from left to right of a matrix in rows.
Solved using: Python.
Decode Color Band Resistance
Challenge No. 420: For the given color bands in Column E, work out the total resistance.
Solved using: Python in Excel.
Find Reverse-Divisible Non-Palindromes
Challenge No. 419: Reverse a number.
Solved using: Python in Excel.
Split by Alpha-Numeric Change
Challenge No. 417: Split the given strings whenever a changeover happens between English alphabets and numbers.
Solved using: Excel VBA.
Cyclops and Triangular Numbers
Challenge No. 415: A Cyclops number is a number that has a zero in the center (so, it needs to have odd number of digits and >=3 digits).
Solved using: Python in Excel.
Validate IMO Check Digit
Challenge No. 414: IMO Number of a Vessel – This is a 7 digit number where last digit is check digit.
Solved using: Python in Excel.
Pivot Using Suffix Headers
Challenge No. 413: Pivot the given data with headers suffixed with 1, 2.
Solved using: Python.
Square Digits Until Single Number
Challenge No. 412: Square the individual digits of a number and sum them.
Solved using: Python in Excel.
Roman Palindromic Numbers
Challenge No. 410: List all decimal numbers whose Roman equivalents are Palindromic.
Solved using: Python.