Challenge No. 60: Group the customers per month.
Solved using: Python.
HSTACK
Stacks arrays horizontally into a single row in Excel.
Transpose Marks with Subjects
Challenge No. 196: Transpose the problem table into result table.
Solved using: Python in Excel.
Common Entries and Count
Challenge No. 453: Today’s challenge is contributed by Mehmet Çiçek
Find the common entries in List1 and List2 and common count.
Solved using: Excel VBA.
Parasitic Number Identification
Challenge No. 452: Parasitic number – is a positive natural number which, when multiplied by single digit n, results in movement of the last digit to its front.
Solved using: Excel VBA.
Max Consecutive Number Streak
Challenge No. 451: Find the positive and negative numbers which occur consecutively maximum number of times.
Solved using: Python in Excel.
Reverse Cumulative Row Sums
Challenge No. 194: The cumulative sum across rows is given in problem table.
Solved using: Python in Excel.
Group and Sum
Challenge No. 59: Group and Sum Shop Fruit Sales
e.
Solved using: R.
Unstack Groups for Summation
Challenge No. 193: Transpose the problem table into result table.
Solved using: Python in Excel.
Top 3 Closest City Pairs
Challenge No. 446: The distance between two cities is given in the grid.
Solved using: R.
Schedule and Cost Performance
Challenge No. 192: Convert the problem table into result table.
Solved using: Python.