A structured collection of LeetCode solutions focused on building strong Data Structures & Algorithms fundamentals with clean logic, optimal complexity, and interview-ready code.
- Daily LeetCode practice (topic-wise, not random)
- Python solutions using standard LeetCode format
- Emphasis on clarity, patterns, and efficiency
class Solution:
def functionName(self, parameters):
return answerLeetCode handles input/output internally. Only core logic is implemented here.
Develop sharp DSA intuition and problem-solving skills required for technical interviews, through consistent and disciplined practice.
Math & Complexity
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Arrays โ Strings โ Hashing
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Two Pointers โ Sliding Window โ Prefix Sum
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Stack โ Queue โ Linked List
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Sorting โ Binary Search
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Trees (DFS/BFS) โ Graphs
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Recursion โ Backtracking โ Dynamic Programming
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Greedy โ Heaps โ Intervals
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Solve problems topic-wise
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Focus on patterns, not problem count
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Typical target per topic:
- Easy: 5โ10
- Medium: 10โ15
- Hard: optional (later)
Skipping patterns breaks interviews. Jumping to DP too early breaks confidence. Ignoring trees/graphs breaks callbacks.
Consistency > volume. Execution > ego.