Find the sum, given the first term t1, the common ratio r, and number of terms n.
If input t1=1, r=1, n=7 then output y=7
If input t1=10, r=10, n=5 then output y=111110.
Find the sum of all the numbers of the input vector
Whether the input is vector?
Doubling elements in a vector
Magic is simple (for beginners)
Count decimal digits of a number
An asteroid and a spacecraft
How to add?
old wine in a new bottle?
Find the outlier in a set of samples
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