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Can I solve this by using linear transformation (linear algebra perspective / matrix operations) by (for example) composition of some modified identity matrices and then mix and or alternate between addition and multiplication to transform the original vector row or column into this pattern?
BINGO
could someone help me understand this approach?
how evaluation go once for this ?
The char code of
M
is77
, so it will be counted twice; the other chars in the string have one7
in their char code. Multiply by6
, and you get the answer.See my other solution using the same idea.
more explanation pls