Challenge No. 170: Calculate the sum of sale for Weekdays and Weekends.
Solved using: Python in Excel.
LAMBDA
Creates custom reusable functions in Excel.
List Prime-Surrounded Sandwich Numbers
Challenge No. 405: Sandwich numbers – A number is said to be a Sandwich number if the number prior to it and the number after it, both are primes.
Solved using: Excel VBA.
Department Totals and Summary
Challenge No. 165: Insert the total row containing count of employees and sum of salary at the bottom of each dept groups.
Solved using: R.
Render ASCII US Flag
Challenge No. 404: Generate US ASCII flag.
Solved using: Python.
Validate Vehicle Registration Numbers
Challenge No. 163: Extract the valid vehicle registration numbers from given data table T2.
Solved using: R.
Encrypt Using Vigenere Cipher
Challenge No. 402: Vignere Cipher – Write the plain text (p) and keyword (k) beneath that.
Solved using: Python in Excel.
Form Pyramid from Text String
Challenge No. 401: Prepare the triangle from column A strings.
Solved using: Python.
Extract Alphabet Number Pairs
Challenge No. 162: Extract alphabet and two digit numbers strings if alphabet and two digit numbers are separated by a special character.
Solved using: R.
Check Connectivity of Random Points
Challenge No. 400: Coordinates for points are given in x, y format.
Solved using: R.
Count Unique Letters in String
Challenge No. 399: Extract the unique alphabets from the given strings and count their frequencies of occurrence.
Solved using: Python.