Chrome extension · DSA tutor

Get unstuck without getting the full solution.

Guru watches your real code attempts on LeetCode and delivers the smallest next helpful hint — teaching you to think, not to copy.

Join the waitlist See how it works

Coming to VS Code, Cursor & JetBrains after Chrome launch.

leetcode.com/problems/two-sum

EasyArray · Hash Table

1. Two Sum

Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.

Python3Run

def twoSum(nums, target):
    # tried brute force — too slow
    for i in range(len(nums)):
        for j in range(i + 1, len(nums)):
            if nums[i] + nums[j] == target:
                return [i, j]
    # missing O(n) approach…

Guru

Hint 2

Effort check

You wrote real code — good. Your nested loop works but runs in O(n²).

Smallest next hint

What if you could remember each number you've already seen — and what index it was at?

2 of 7

Effort before hints

No code? Get a nudge, not an answer.

Smallest next step

One ladder rung at a time, anti-spoiler.

Learning memory

Tracks strengths & weaknesses over time.

The problem

Most help makes you weaker, not sharper.

Interview prep learners hit a wall on hard problems — then reach for tools that hand over complete answers. You pass one problem and forget the pattern by the next one.

LeetCode solutions

Full code + explanation on demand. You read, paste, and move on without building intuition.

ChatGPT copy-paste

Generic chat dumps entire algorithms. No effort gating, no memory of your weak spots.

Staring at the screen

Hours lost with no structured guidance. Confidence drops right when you need deliberate practice.

The solution

Guru helps you solve by thinking.

Guru is a Chrome extension that lives on your problem page. It reads the problem, watches your effort, analyzes your partial code, and returns only the next step on a controlled hint ladder.

Effort-gated hints — try first, then get help
Code-aware analysis of direction and mistakes
Streaming responses in under 2.5s
Session summaries that update your learning profile

Product promise

"Teach users to think like problem solvers, not answer copiers."

North star: rising independent solve rate — problems you finish without unlocking full solutions.

How it works

From stuck to solving — step by step.

The extension fits into your existing workflow on supported coding platforms.

01
Open a problem
Install the extension and navigate to a supported platform like LeetCode.
02
Write real code
Attempt the problem. No meaningful code? Guru nudges you to try first.
03
Request a hint
Get the smallest next step — algorithm family, missing concept, or mistake pattern.
04
Build memory
End-of-session report updates your profile. Next problem, smarter guidance from Guru.

See it in action

Hints that meet you where your code is.

The overlay reads your attempt, checks effort level, and streams the next nudge — never the full answer by default.