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A half-exponential function is one which when composed with itself gives an exponential function. For instance, if f(f(x)) = 2^x, then f would be a half-exponential function. In this challenge, you will compute a specific half-exponential function.
Specifically, you will compute the function fro...
Electron Configuration
In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom in atomic orbitals. For example, the electron configuration of the neon atom is 1s2 2s2 2p6. (From Wikipedia)
Challenge
Your challenge is to take a number ...
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I think IdentityHashMap will do the trick. However, both strings will point to the very same instance since you used a string literal. Try s1 = new String("hi!") and s2 = new String("hi!") together with an IdentityHashMap instead.
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Today's date is quite an interesting one. Let's take a look at why. The date 07/12/2017 (in DD/MM/YYYY date format) can be split into the year (2017) and the rest (07/12). You may notice that the digits in the year can be rearranged to match the digits in the rest of the date, which is the basis ...
Show a Chess Piece Range
Write a program or function that, given a set of movement rules, shows the available moves for a fairy chess piece.
Movement Rules:
This will use a slightly modified version of Parlett's Movement Notation:
A number, 1, 2, etc. shows how far a piece can move in a given...
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