Problem 2193. Mysterious digits operation (easy)
What is this digit operation?
0 -> 0 1 -> 9 121 -> 9 44 -> 6 15 -> 5 1243 -> 7 ...
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Matrix Manipulation I
- 16 Problems
- 98 Finishers
- Remove the air bubbles
- Remove NaN ?
- N-Dimensional Array Slice
- Back to basics 21 - Matrix replicating
- Back to basics 23 - Triangular matrix
- Make an awesome ramp for a tiny motorcycle stuntman
- Flip the main diagonal of a matrix
- surrounded matrix
- Some Assembly Required
- Set some matrix elements to zero
- Matrix with different incremental runs
- Removing rows from a matrix is easy - but what about inserting rows?
- Rotate input square matrix 90 degrees CCW without rot90
- Permute diagonal and antidiagonal
- Operate on matrices of unequal, yet similar, size
- Reverse the elements of an array
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