DSA Sheet – Most Important Interview Questions (FAANG + Top Companies) | ExpertFunda

🎯 Top Interview Questions

LeetCode Solutions by ExpertFunda

Curated solutions with clean Java code, pattern explanations, and complexity analysis — built for FAANG interview success.

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500+ Problems | 3 Difficulty levels | Java Solutions

Problems

• Day 1–5: Arrays
• Day 6–7: Strings
• Day 8: Binary Search
• Day 9–10: Recursion & Backtracking
• Day 11–12: Linked List
• Day 13–15: Stack & Queue
• Day 16–19: Binary Trees
• Day 20–22: BST
• Day 23: Heaps
• Day 24: Tries
• Day 25–28: Graphs
• Day 29–32: Dynamic Programming
• Day 33: Greedy
• Day 34: Miscellaneous

14 sections

No problems match.

47 problems

#1–5 Easy Array

Arrays (Day 1–5)

• Day 1
• Day 2
• Day 3
• Day 4
• Day 5

#6–7 Easy String

Strings (Day 6–7)

• Day 6
• Day 7

#8 Medium Binary Search

Binary Search (Day 8)

• Day 8

#9–10 Medium Recursion

Recursion & Backtracking (Day 9–10)

• Day 9
• Day 10

#11–12 Easy Linked List

Linked List (Day 11–12)

• Day 11
• Day 12

#13–15 Easy Stack

Stack & Queue (Day 13–15)

• Day 13
• Day 14
• Day 15

#16–19 Medium Binary Tree

Binary Trees (Day 16–19)

• Day 16
• Day 17
• Day 18
• Day 19

#20–22 Medium BST

Binary Search Tree (Day 20–22)

• Day 20
• Day 21
• Day 22

#23 Medium Heap

Heaps (Day 23)

• Day 23

#24 Medium Trie

Tries (Day 24)

• Day 24

#25–28 Hard Graph

Graphs (Day 25–28)

• Day 25
• Day 26
• Day 27
• Day 28

#29–32 Hard DP

Dynamic Programming (Day 29–32)

• Day 29
• Day 30
• Day 31
• Day 32

#33 Medium Greedy

Greedy (Day 33)

• Day 33

#34 Mixed Misc

Miscellaneous (Day 34)

• Day 34