My profile - TOP 10 at Mackenzie
URI is a platform with a wide range of problems — from simple to complex — designed to train programming logic. You can submit solutions and get instant feedback on whether they're correct.
It was the first platform I used, back in college. I also relied on it when teaching, using it as a source of exercises for my students. It's especially great for beginners and for anyone picking up a new language.
My commented and formatted solutions, updated as I complete new ones.
You're welcome to use these solutions as reference, but please make meaningful changes if you copy them. URI has its own terms regarding this:
Users may share their solutions (source code) in public repositories (such as GitHub, BitBucket, or similar) and personal websites at their discretion. However, third parties are prohibited from using these solutions within URI Online Judge. Users who engage in this practice may have their accounts deactivated without prior notice.