Which doors are open?
Check if sorted
Determine Whether an array is empty
Generate a vector like 1,2,2,3,3,3,4,4,4,4
Square the input
Set x value to each odd index of vector y.
Find cosine between two given vectors u and v.
Opposite task convert binary numbers array into array of decimal numbers.
Opposite task convert string hexadecimal numbers array into array of decimal numbers .
Find sum of negative elements in row.
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