Find the number of 1s in the given binary string.
Example. If the input string is '1100101', the output is 4. If the input string is '0000', the output is 0
Back to basics 4 - Search Path
Change the sign of even index entries of the reversed vector
02 - Vector Variables 1
Find the index of the largest value in any vector X=[4,3,4,5,9,12,0,4.....5]
Flip the vector from right to left
Sum of first n terms of a harmonic progression
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