this post was submitted on 20 Aug 2023
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Programming Challenges
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Welcome to the programming.dev challenge community!
Three challenges will be posted every week to complete
- Tuesday (Easy)
- Thursday (Medium)
- Saturday (Hard)
Easy challenges will give 1 point, medium will give 2, and hard will give 3. If you have the fastest time or use the least amount of characters you will get a bonus point (in ties everyone gets the bonus point)
Exact duplicate solutions are not allowed and will not give you any points. Submissions on a challenge will be open for a week.
A leaderboard will be posted every month showing the top people for that month
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I found this one easier than the medium as well. Maybe because I actually know a strategy for this one. Anywho, solution is in JavaScript. It's super ugly as I went for lowest character count, so no declarations, single char variable names, no semicolons, etc...
Basically use a anchor-runner pointer strategy to find a correct substring, I use a stack based solution for checking if the substring is correct. When the stack is empty, the substring is good, thus I record the start of it and its length. If, I get another good point, I just record the highest. If I hit a point where its no longer good, I jump the start to the end of the most recent good substring. Pretty fun.
Formatting screwed mine up, so heres a pastbin