Injection, Surjection and Bijection

Injection(1-to-1 function) X values cannot have multiple Y values All of Y may not correspond to X Surjection(onto function) X values can have multiple Y…
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Python Dictionaries

Python, in addition to those nifty data structures–tuples and arrays–, provides another way of collecting complex data. Wait for it… Dictionaries! Not to be confused…
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