How It Works

PICK YOUR WEAK SPOT

Choose the topic that's costing you interviews. Graphs? DP? Recursion? Start there.

DAILY QUEST. NO EXCUSES.

Every day: one pattern, one problem, one template. Takes 45 minutes. Miss it and you stay E-Rank.

RANK UP. PROVE IT.

Day 30: the S-Rank challenge. One hard problem used in a real Codeforces contest. Solve it. Become a Legend.

INSIDE EVERY PACK

EVERYTHING LEGENDS ACTUALLY NEED

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30 daily problems, ranked E to S

Each problem chosen because top coders actually use this pattern

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Pattern recognition templates

Copy → adapt → apply. Works in C++, Python, and Java

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Common mistakes breakdown

The 3 ways most coders fail this pattern. Avoid them.

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How competitive programmers think about it

Insights from the training patterns of top Codeforces coders

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S-Rank final challenge

A real problem from a Codeforces or LeetCode contest. No hints.

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Lifetime access. One payment.

Buy once. Come back whenever. Pack updated when new patterns emerge.

⚔ 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%