Uber Programming Interview Questions

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Uber Interview Questions 3

Uber Interview Questions 2

Uber Interview Questions 1

Given a list of system packages, some packages cannot be installed until the other packages are installed. Provide a valid sequence to install all of the packages.
a relies on b
b relies on c
then a valid sequence is [c, b, a]

4/5 Round at Uber
Coding: Given a 2D array of either '\' or '/', find out how many pieces this rectangle is divided into graphically.
For a 2X2 matrix with
The matrix split into 5 pieces - the diamond in middle and the four corners.
Return 5 as the answer.
5/5 Round at Uber
Design Excel.

1/5 Round at Uber
Manager : Behavioral questions. Basic system design concepts.
Publish/subscribe model. Discussion on Uber architecture.

2/5 Round at Uber
Bar raiser - Behavioral questions. Coding: Find if a set of meetings overlap.
Meeting has a starttime and an endtime with accuracy to minute. All meetings take place in the same day. Do this in O(n) time.

3/5 Round at Uber
Coding: Subset sum. Follow-up: Optimize the solution.

Convert a string with digits into a literal representation of the number like: 1001 to one thousand one

The matching should cover the entire input string (not partial).
The function prototype should be:
bool isMatch(String str, String pattern)
Some examples:
isMatch("aa","a") → false
isMatch("aa","aa") → true
isMatch("aaa","aa") → false
isMatch("aa","a{1,3}") → true
isMatch("aaa","a{1,3}") → false
isMatch("ab","a{1,3}b{1,3}") → true
isMatch("abc","a{1,3}b{1,3}c") → true
isMatch("abbc","a{1,3}b{1,2}c") → false
isMatch("acbac","a{1,3}b{1,3}c") → false
isMatch("abcc","a{1,3}b{1,3}cc{1,3}") → true
In pattern string, a char followed by {lower, upper} means that the char occur lower to upper(exclusive) times. e.g. a{1, 3} -> a occurs 1 or 2 times.

Most Frequently Asked Uber Programming Interview Questions
  • LeetCode

    78 Subsets Medium
    266 Palindrome Permutation Easy
    249 Group Shifted Strings Medium
    23 Merge k Sorted Lists Hard
    125 Valid Palindrome Easy
    8 String to Integer (atoi) Medium
    337 House Robber III Medium
    49 Group Anagrams Medium
    54 Spiral Matrix Medium
    121 Best Time to Buy and Sell Stock Easy
    171 Excel Sheet Column Number Easy
    33 Search in Rotated Sorted Array Medium
    208 Implement Trie (Prefix Tree) Medium
    36 Valid Sudoku Medium
    161 One Edit Distance Medium
    297 Serialize and Deserialize Binary Tree Hard
    262 Trips and Users Hard
    39 Combination Sum Medium
    186 Reverse Words in a String II Medium
    290 Word Pattern Easy
    24 Swap Nodes in Pairs Medium
    254 Factor Combinations Medium
    291 Word Pattern II Hard
    91 Decode Ways Medium
    22 Generate Parentheses Medium
    230 Kth Smallest Element in a BST Medium
    10 Regular Expression Matching Hard
    202 Happy Number Easy
    138 Copy List with Random Pointer Medium
    13 Roman to Integer Easy
    104 Maximum Depth of Binary Tree Easy
    242 Valid Anagram Easy
    133 Clone Graph Medium
    139 Word Break Medium
    206 Reverse Linked List Easy
    146 LRU Cache Hard
    17 Letter Combinations of a Phone Number Medium
    140 Word Break II Hard
    1 Two Sum Easy
    155 Min Stack Easy
    373 Find K Pairs with Smallest Sums Medium
    380 Insert Delete GetRandom O(1) Medium
    37 Sudoku Solver Hard
    76 Minimum Window Substring Hard
    432 All O`one Data Structure Hard
    450 Delete Node in a BST Medium
    516 Longest Palindromic Subsequence Medium
    535 Encode and Decode TinyURL Medium
    648 Replace Words Medium
    207 Course Schedule Medium
    690 Employee Importance Easy
    636 Exclusive Time of Functions Medium
    692 Top K Frequent Words Medium
    699 Falling Squares Hard
    733 Flood Fill Easy
    735 Asteroid Collision Medium
    827 Making A Large Island

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