Amitava, can you please be a little more specific than "mentioned earlier"? Remember, you can put links into your description with notation.
corrected. thanks, Ned.
Distance walked 2D
Inner product of two vectors
Construct a string from letters and counts
Set the array elements whose value is 13 to 0
What's Your BMI?
How to add?
Acid and water
How many palindromes?
chance in percent for minimum K heads when a good coin is tossed N times?
Multiply to the limit?
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