STRUCTURED DSA LEARNING
MASTER DSA PATTERNS.
NOT RANDOM PROBLEMS.

A structured daily learning system that teaches pattern recognition for coding interviews — organized into 30-day topic packs with a Solo Leveling-inspired progression from E-Rank to S-Rank.

recursion_template.cpp
// E-RANK → S-RANK RECURSION TEMPLATE
// Pattern: Subsets via Backtracking

void solve(int idx, vector<int>& arr,
           vector<int>& curr,
           vector<vector<int>>& res) {
    res.push_back(curr);

    for (int i = idx; i < arr.size(); i++) {
        curr.push_back(arr[i]);   // choose
        solve(i+1, arr, curr, res); // explore
        curr.pop_back();          // unchoose
    }
}
// Time: O(2^n) | Space: O(n)
// Used by: Tourist, Benq, Um_nik
C++ • Python • Java • Pattern #04 of 30
THE DIFFERENCE

RANDOM GRINDING VS GUIDED LEARNING

Most platforms give you problems. We give you a system.

THE OLD WAY

Random LeetCode Grinding

  • No daily structure — pick whatever feels easy
  • Skip fundamentals, jump to hard problems
  • Memorize solutions without understanding why
  • Can't recognize patterns in new interview questions
  • 500 problems solved, still anxious in interviews
YOUR DAILY PATH

HOW EVERY DAY WORKS

45 minutes. One topic. Real understanding.

01
LEARN THE PATTERN

Each day focuses on one DSA concept. Read the explanation, see worked examples, and understand the intuition before writing any code.

02
SOLVE CURATED PROBLEMS

Apply the pattern on 2 hand-picked LeetCode problems. Full walkthroughs explain the why, not just the what.

03
RANK UP

Complete daily quests to progress from E-Rank to S-Rank. Each rank unlocks harder patterns until you're solving real contest-level problems.

⚔ DAY 14 QUEST — C-RANK
Pattern N-Queens Backtracking
Difficulty ★★★☆☆
Time limit 45 min

"Place N queens on an N×N board such that no two queens attack each other."


C++ Python Java
C-RANK B-RANK
→ Complete → Rank Progress: 75%
THE PROGRESSION

SIX RANKS. ONE TOPIC.

Every pack takes you from foundation to legend in 30 days.

E-RANK
Foundation
Day 1–5
Core patterns, base cases
D-RANK
Builder
Day 6–12
Pattern stacking begins
C-RANK
Intermediate
Day 13–20
Medium-level problems
B-RANK
Advanced
Day 21–25
Hard problem strategies
A-RANK
Elite
Day 26–28
CP-level thinking
S-RANK
LEGEND
Day 29–30
Real contest problems
THE ARSENAL

PICK YOUR BATTLEFIELD

One pack per topic. 30 days of guided learning. Start with the free Starter Path or jump into a premium topic.

VIEW ALL PACKS →

6 packs available — Starter Path + 5 Ascension topics · See pricing

STOP MEMORIZING.
START UNDERSTANDING.
YOUR PATH STARTS TODAY.

Join thousands of coders who chose guided mastery over random grinding.

START FREE STARTER PATH →