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.
Determine if input is odd
The Tower of Hanoi
Find the "ordinary" or Euclidean distance between A and Z
7 segment LED display
Whether the input is vector?
Given a square and a circle, please decide whether the square covers more area.
Energy of a photon
Size of this cup?
Use of regexp
Calories in a slice of pizza?
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