Amitava, it is fantastic that you are contributing problems, but you really need to spend more time specifying what the solution should do. The person solving is left needing to guess too much.
Definitely Agree with the cyclist. W/o example it is impossible to understand the task to achieve.
The DC component of a signal is usually its mean. Now filter can have many meanings, but in this case, it means to remove the signal variation.
Sort a list of complex numbers based on far they are from the origin.
Return a list sorted by number of occurrences
Is A the inverse of B?
matrix of natural number
Sum the 'edge' values of a matrix
Surface Fit z(x,y)
Size of this cup?
swap sign sum & multiply castles
count any radix?
Simple spirometer - find your lung capacity from the number and size of soap bubbles in one breath
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