if x = 4, the solution will be: y = 1^2+2^2+3^2+4^2=1+4+9+16 = 30.
Most nonzero elements in row
Back to basics 5 - Clipboard
kmph to mps
Square the input
Write a code that will follow the equation y = x * (x + x) * x.
sum all digits
No more zeros
concatenate the elements
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