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Palo Alto Networks interview questions (last 30 days) · FAANGrind

Palo Alto Networks

ProductGlobal Last 30 days

Palo Alto Networks brings network, cloud, endpoint, and security-operations capabilities together to protect organizations from cyber threats.

Est. 2005 10,001-50,000 employees

Problems: 192
Window: 30d
Topics: 6

192 problems

TopicsLinks

1

1.Maximum Number of Ones

Hard2 co.

Hard

Greedy Algorithms

also at 1 more

2

2.Find the Lexicographically Largest String From the Box II

Medium6 co.

Medium

also at 5 more

3

3.N meetings in one room

Medium8 co.

Medium

Greedy Algorithms

also at 7 more

4

4.Trie Implementation and Advanced Operations

Medium20 co.

Medium

also at 19 more

5

5.Rotten Oranges

Medium39 co.

Medium

also at 38 more

6

6.Single element in sorted array

Medium23 co.

Medium

also at 22 more

7

7.Design An Expression Tree With Evaluate Function

Medium8 co.

Medium

Stack & Queues Binary Trees

also at 7 more

8

8.Binary Search Tree Iterator II

Medium10 co.

Medium

Stack & Queues Binary Search Trees

also at 9 more

9

9.Max Consecutive Ones II

Medium5 co.

Medium

Dynamic Programming

also at 4 more

10

10.Grid unique paths

Medium16 co.

Medium

Dynamic Programming

also at 15 more

11

11.Design In-Memory File System

Hard10 co.

Hard

also at 9 more

12

12.K-th Largest element in an array

Medium35 co.

Medium

also at 34 more

13

13.Longest Substring Without Repeating Characters

Medium51 co.

Medium

also at 50 more

14

14.Search in rotated sorted array-I

Medium34 co.

Medium

also at 33 more

15

15.Matrix Median

Medium9 co.

Medium

also at 8 more

16

16.One Edit Distance

Medium7 co.

Medium

also at 6 more

17

17.Deletion of the head of LL

Medium2 co.

Medium

also at 1 more

18

18.Find The Closest Marked Node

Medium9 co.

Medium

also at 8 more

19

19.Longest Substring With At Most K Distinct Characters

Medium15 co.

Medium

Strings Hashing

also at 14 more

20

20.Alt and Tab Simulation

Medium12 co.

Medium

also at 11 more

21

21.Convert Doubly Linked List to Array II

Medium5 co.

Medium

Arrays Linked List

also at 4 more

22

Medium20 co.

Medium

Dynamic Programming

also at 19 more

23

23.Celebrity Problem

Medium13 co.

Medium

Arrays Stack & Queues

also at 12 more

24

24.Longest palindromic subsequence

Medium15 co.

Medium

Dynamic Programming

also at 14 more

25

25.Single Number - II

Medium16 co.

Medium

also at 15 more

26

26.Find Nearest Right Node in Binary Tree

Medium1 co.

Medium

also at 0 more

27

27.Insertion at the tail of Linked List

Medium1 co.

Medium

also at 0 more

28

28.Search in 2D matrix - II

Medium17 co.

Medium

also at 16 more

29

29.Minimum number of bracket reversals to make an expression balanced

Medium3 co.

Medium

also at 2 more

30

30.Missing Ranges

Medium5 co.

Medium

Greedy Algorithms

also at 4 more

31

31.Merge two Sorted Lists

Medium32 co.

Medium

Linked List Recursion & Backtracking

also at 31 more

32

32.Reverse a String II

Easy8 co.

Easy

also at 7 more

33

33.Calculate Frequency of Characters in a String

Easy8 co.

Easy

Strings Hashing

also at 7 more

34

34.Unique paths II

Medium12 co.

Medium

Dynamic Programming

also at 11 more

35

35.Find the intersection point of Y LL

Medium17 co.

Medium

also at 16 more

36

36.Convert Doubly Linked List to Array I

Medium6 co.

Medium

Arrays Linked List

also at 5 more

37

37.Closest Binary Search Tree Value II

Hard3 co.

Hard

Stack & Queues Binary Search Trees+1

also at 2 more

38

38.Count number of Nice subarrays

Medium13 co.

Medium

Arrays Hashing+1

also at 12 more

39

39.Minimum Travel Cost

Medium10 co.

Medium

Dynamic Programming

also at 9 more

40

40.Bold Words in String

Medium6 co.

Medium

also at 5 more

41

Medium9 co.

Medium

Dynamic Programming

also at 8 more

42

42.Koko eating bananas

Medium33 co.

Medium

also at 32 more

43

43.Frog jump with K distances

Medium6 co.

Medium

Dynamic Programming

also at 5 more

44

44.Number of Same-End Substrings

Medium3 co.

Medium

Strings Hashing

also at 2 more

45

45.Merge two sorted arrays without extra space

Medium33 co.

Medium

also at 32 more

46

46.Search in a 2D Matrix

Medium18 co.

Medium

also at 17 more

47

47.Add two numbers in Linked List

Medium38 co.

Medium

also at 37 more

48

48.Binary Tree Vertical Order Traversal

Medium10 co.

Medium

Hashing Binary Trees

also at 9 more

49

49.Find Peak Element - II

Medium8 co.

Medium

Arrays Binary Search

also at 7 more

50

50.Next Greater Element - 2

Medium21 co.

Medium

also at 20 more

…

Showing 1–50 of 192

Difficulty split

Easy15(8%)
Medium165(86%)
Hard12(6%)

Top topics

Linked List32
Hashing24
Dynamic Programming22
Binary Search21
Stack & Queues19
Arrays16