destack | Page builder for Next.js 🅧 | Frontend Framework library
kandi X-RAY | destack Summary
kandi X-RAY | destack Summary
Build landing pages visually right in your Next.js project. Deploy them zero further configuration!. Editor preview: Destack Online Builder. Example in production: prettyfunnels.com.
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QUESTION
I received an interesting challenge in an algorithm Meetup. Given an input string, return a string in which all substrings within brackets have been replicated n times, where n is the integer outside the brackets. Characters outside brackets should simply be concatenated to the substring inside. For example:
- 2[ab] should return abab
- a[3[bc]] should return abcbcbc
- 2[ab[cd]] should return abcdabcd
I've started implementing the solution using a stack, but I've got the feeling that my approach of checking each de-stacked character for a bracket is off, anyone have any suggestions? Code is below
...ANSWER
Answered 2017-Aug-30 at 17:20The best way to do that is to use a recursive algorithm. The idea is to repeat a function until a condition is match. Here is the code I used, it works on your examples, and I don't think I forgot one of the possibilities.
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