AT&T

6 LeetCode interview questions

Difficulty Distribution

Easy

1

17%

Medium

5

83%

Hard

0

0%

Top Topics

Array(3)String(2)Hash Table(2)Sliding Window(2)Two Pointers(1)Binary Search(1)Greedy(1)Sorting(1)Stack(1)Math(1)

All Questions

Title	Difficulty	Acceptance	Frequency	Topics
Maximum Erasure Value	Medium	64.1%	100.0%	ArrayHash TableSliding Window
Valid Triangle Number	Medium	56.7%	87.5%	ArrayTwo PointersBinary Search+2
Valid Parentheses	Easy	43.7%	87.5%	StringStack
Longest Substring Without Repeating Characters	Medium	38.5%	87.5%	Hash TableStringSliding Window
Rotate Image	Medium	79.3%	75.0%	ArrayMathMatrix
Number of Divisible Triplet Sums	Medium	67.6%	75.0%

Showing 6 of 6 questions