C++ · voice-taught · local judgeDon’t memorise solutions.
Don’t memorise solutions.
Understand them.
A teacher walks through every line — in English, Hinglish or Hindi. Then you write it yourself and a real C++ judge checks it.
- 62 problems
- 3 solution tiers
- Line-by-line code walks
- Runs on your machine
Mission control
One problem a day compounds.
Solve to earn XP, grow your streak and unlock badges. XP is only awarded for solves the judge verifies.
Your first mission
Two SumEasyArrays ~15 min
A teacher explains it, you write it, a real C++ judge checks it. About fifteen minutes.
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Goal
0day streak· best 0
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- 0
- Solved
- 0
- Best streak
- 0
- Badges
Easy +10 · Medium +25 · Hard +50. Bonuses for daily streaks and sub-5-minute solves.
Badges
Collect them all
First Blood
Solve your first problem
On Fire
Reach a 3-day streak
Ten Down
Solve 10 problems
Week Warrior
Reach a 7-day streak
Speedrunner
Solve in under 5 minutes
Hard Mode
Solve a Hard problem
Quarter Century
Solve 25 problems
Builder
Reach level 5
Explore
Pick a door.
Ask AI anythingPaste any problem, code or concept. Get a whiteboard video with a voice-over, a dry run, and C++ that was really compiled and tested.All problems62 problems, searchable, with a local judge.Start with Two SumThe reference lesson: Easy, Medium and Best solutions, each with a voice-over code walk.Learn DSATopic lessons before the drill.C++ trackSyntax and STL before the hard ones.HackerRankWarm-ups synced to your profile.Interview prepTCS NQT, core CS and HR answers.