YOUR DEVELOPER RPG

Turn practice into progress.

Build durable problem-solving instincts through focused quests, visible mastery, and short lessons after every solve.

LEVEL 7340 / 500 XP
DAILY QUEST+80 XP

Keep the signal strong.

Complete one focused problem and explain the pattern you used.

EASY

Two Sum

Hash Maps · new pattern

🔥

CURRENT STREAK

12 daysPersonal best: 18
MTWTFSS
QUESTS CLEARED48Patterns first learned
REVIEWS DUE0Queue is clear
TOTAL XP3,840Reviews earn bonus XP
STRONGEST SKILLArrays82% mastery

RECALL QUEUE

Start a new memory

01NEW QUEST
EASY

Two Sum

Find a pair that reaches the target.

Hash Maps+80 XP
02NEW QUEST
EASY

Valid Parentheses

Keep every bracket in balance.

Stacks+90 XP
03NEW QUEST
MEDIUM

Longest Substring

Track the longest unique window.

Sliding Window+140 XP
04NEW QUEST
MEDIUM

Number of Islands

Explore connected land efficiently.

Graphs+160 XP
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AFTER EVERY SOLVE

Don’t just pass. Understand.

QuestCode reveals the key insight, how the technique was discovered, and the optimization path from a first solution to the best one.

BRUTE FORCEO(n²)→HASH MAPO(n)