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.
Remove all the consonants
Encode Roman Numerals
Make one big string out of two smaller strings
Whether the input is vector?
letter yes yes & letter no no
How many palindromes?
Check if sorted
Distance walked 1D
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