Beat Procrastination

The best place to learn and solve

Beat resistance to starting LeetCode, remove the confusion of what to solve next, and stay consistent through social accountability.

Next Problem38 / 150
Arrays & Hashing

#217 - Contains Duplicate

Easy

Our interactive features

Discover enjoyable activities such as learning and solving to support your growth and learning process.

Daily Next Problem

Always know exactly what to solve next from the NeetCode 150 path.

Social Accountability

Add friends and keep each other consistent with visible daily progress.

Nudges That Work

Send quick nudges when a friend slips, so momentum never fully breaks.

Focused Consistency

Small daily wins beat chaotic cramming and reduce interview prep stress.

Private by Design

No noisy public feed. No random competition. Just your trusted circle.

Progress Clarity

Track completed problems and see exactly how far you are from done.

How It Works

Three simple steps to stay consistent and crush your interview prep goals.

01

Start with one clear problem

No guessing what to do first. Open LeetLocked and begin with your next assigned question.

02

Solve and mark complete

Track your daily progress in seconds and keep your momentum visible to your accountability circle.

03

Stay consistent with friends

Use nudges and shared progress to avoid drop-offs and keep showing up every day.

Frequently asked questions

LeetLocked gives you one clear next problem from the NeetCode 150 path so you can start immediately instead of overthinking.

We solve the hardest part:
starting and staying consistent

If you struggle with resistance to starting LeetCode, feel lost about where to begin, or need social accountability to keep going, LeetLocked gives you a focused system that makes daily progress realistic.

Get Started