Programming Praxis

I heard today’s exercise as an interview question — you have five minutes to solve this task, while I watch — but it could equally be a homework problem:

Write a function to return true/false after looking at a string. Examples of strings that pass:

{}, [], (), a(b)c, abc[d], a(b)c{d[e]}

Examples of strings that don’t pass:

{], (], a(b]c, abc[d}, a(b)c{d[e}]

Your task is to write the function described above. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below:

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