Surjection Strings

Surjection Strings

Maybe it's a cipher? Maybe, but we don’t know for sure.

Maybe you can call it "homomorphism"? I wish I knew this word before.

You need to check that the string A is isometric to the string B. There exists a function that turns characters from A into characters in the same spot in B.

Characters in A correspond to a unique character value in B. Characters in B are allowed to correspond to multiple character values in A.

Input: Two strings (str).

Output: Logic value (bool).

Examples:

assert isometric_strings("add", "egg") == True
assert isometric_strings("foo", "bar") == False
assert isometric_strings("bar", "foo") == True
assert isometric_strings("", "") == True

Precondition:

  • both strings have the same length.

40
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