Amazon · DSA

FAANG+

SDE-1 loop: trees, graphs, DP, and system design fundamentals.

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1
Coin Changemedium
Dynamic Programming 30m
LeetCode GeeksforGeeks HackerRank Codeforces
LeetCode GeeksforGeeks HackerRank Codeforces
2
Valid Parentheseseasy
Stack 15m
LeetCode GeeksforGeeks HackerRank Codeforces
LeetCode GeeksforGeeks HackerRank Codeforces
3
Number of Islandsmedium
Graphs / BFS-DFS 25m
LeetCode GeeksforGeeks HackerRank Codeforces
LeetCode GeeksforGeeks HackerRank Codeforces
4
Merge Two Sorted Listseasy
Linked List 20m
LeetCode GeeksforGeeks HackerRank Codeforces
LeetCode GeeksforGeeks HackerRank Codeforces
5
Kth Largest Element in an Arraymedium
Heap / Quickselect 25m
LeetCode GeeksforGeeks HackerRank Codeforces
LeetCode GeeksforGeeks HackerRank Codeforces
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