Test suite check will work for incorrect answers too :(
Replace NaNs with the number that appears to its left in the row.
Number of 1s in a binary string
Symmetry of vector
Determine the square root
Rounding off numbers to n decimals
07 - Common functions and indexing 5
06 - Matrix Equations 1
01 - Scalar variables
05 - Vector Equations 2
04 - Scalar Equations 3
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