Adobe

15 problems asked at Adobe.

Easy (3)

Top K Frequent Elements (Leetcode 347)

Arrays, Hashing, Heap...

Two Sum (Leetcode 1)

Two Pointers, Arrays

Valid Parentheses (Leetcode 20)

Stack, Strings

Medium (5)

Gas Station (Leetcode 134)

Arrays, Greedy, Prefix Sum

Group Anagrams (Leetcode 49)

Arrays, Strings, Sorting...

Longest Substring Without Repeating Characters (leetcode 3)

Sliding Window, Strings, Hashing

Min Stack (Leetcode 155)

Stack

Stock Span Problem (Leetcode 901)

Stack, Arrays, Greedy

Hard (5)

Largest Rectangle in Histogram (leetcode 84)

Arrays, Stack

N-Queens (Leetcode 51 & 52)

Backtracking, Maths, Recursion...

Next Permutation (Leetcode 31)

Arrays, Greedy, Two Pointers

Repeating Element (Cycle + Expected Sum appr.)

Arrays, Two Pointers, Linked Lists

Trapping Rain Water (LC 42)

Two Pointers, Prefix and Suffix Arrays, Stack

Not Specified (2)

Best Time to Buy and Sell Stock

Arrays, DP

Container With Most Water

Two Pointers