System Online v2.5

CRACK THE
CODE.

Forget boring tutorials. Learn DSA like a game. Beat challenges, level up, flex your skills.

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mission_critical.ts

1234567

const crackAlgo = (graph) => {

// O(log N) Optimization

let visited = new Set();

while (queue.length) {

const node = queue.shift();

if (node === 'TARGET') return true;

}

};

Tests Passed

12ms • 4.2MB

01.PLATFORM FEATURES

MULTI-LANGUAGE

Code in your preferred language. Full support for Go, TypeScript, and C++.

GOTYPESCRIPTC++

STORY CAMPAIGN

Immersive narrative-driven learning. Each module tells a unique story as you master algorithms.

🎮 16 Unique Story Modules

YOUR ENVIRONMENT

Use your own custom environment for learning. Your favorite IDE, your tools, your workflow.

Install CLI →

150+ CHALLENGES

Comprehensive problem set covering all DSA patterns. From basics to advanced.

EASYMEDIUMHARD

02.GAMIFIED ROADMAP

LEVEL 1: ARRAYS & STRINGS

COMPLETE

LEVEL 2: LINKED LISTS

ACTIVE

LEVEL 3: TREES & GRAPHS

LOCKED

BOSS: DYNAMIC PROGRAMMING

LOCKED

03.PATTERN RECOGNITION

Chaos Code

function s(n) {
  if(n<=0) return 0;
  var a = [];
  for(var i=0;i<n;i++)
    a.push(i);
  return a.reduce((x,y)=>x+y);
}
// O(N) Space? Why?

Pattern Mastery

const sum = (n: number) => {// O(1) Time & Spacereturn (n * (n + 1)) / 2;}

04.GLOBAL LEADERBOARD

Rank	Player	XP	Bugs Squashed
#1	NEO_CODER	9,999	420
#2	ALGO_WIZ	8,540	312
#3	RUST_ACE	7,230	289
#4	PYTHONISTA	6,890	256
#5	JAVA_JEDI	6,100	198

05.SIMPLE PRICING

Pro Access

$9.99/mo

Full access to all 150+ challenges, story campaigns, and CLI tool

GET STARTED →

Cancel anytime • Secure payment via Paddle

CRACK THECODE.