Amazon interview questions

Problem Concept Level Frequency
Top K Frequently Mentioned Keywords Priority Queue Easy
Zombie in Matrix Graph DFS Medium
Critical Routers Graph DFS Hard
Product Suggestions Hard
Number of Clusters Graph DFS Hard
Reorder Data in Log Files Medium
Partition Labels Medium
Longest Palindromic Substring Dynamic Programming Easy
Copy List with Random Pointer Linked list Easy
Merge Two Sorted Lists Linked list Medium
Search a 2D Matrix II Binary Search Algorithm Medium
Spiral Matrix Medium
Merge Intervals Hard
Longest string without 3 consecutive characters Sliding window Hard
Zigzag traversal of a tree Binary Tree Easy
Combination of words which form other words Meidum
Group Shifted Strings Medium
Course Schedule Graphs Topological Easy
Critical Connections Graph DFS Hard
Number of Islands Graph DFS Hard