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Hiring process8 levels
  1. 1 IQ Test
  2. 2 Additional Online Test (If Required)
  3. 3 Office Interview with Hiring Manager
  4. 4 Unpaid Test Task (Motivation Check)
  5. 5 Paid Test Task and Follow-Up Interview
  6. 6 Iterative Paid Test Tasks
  7. 7 Office Verification
  8. 8 Final Interview with the Founder

Practice Problems

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All 58 topics
Daily Challenge: Order by Set Bits (1100) Solve it to start a streak

Practice Problems

Your status ProblemTopics Solvers Acceptance Difficulty
Flips to Alternate strings greedy 32
44%
1200
Fair Binary Split strings prefix-sums 0 — 1200
Equilibrium Index prefix-sums 0 — 1200
Best Window of Size K sliding-window 0 — 1200
Coldest Stretch sliding-window 0 — 1200
Rotate 90 Degrees implementation 0 — 1200
Distinct Prime Factors math number-theory 0
0%
1200
Counting Euclid's Steps math 0
0%
1200
The Missing Term math 0 — 1200
Happy Number math implementation 0 — 1200
Multiples of A or B math 0 — 1200
Content Children greedy sorting 0 — 1200
Integer Square Root math binary-search 0 — 1200
Frog Hops dp 0
0%
1200
The Lonely Number bitwise 0 — 1200
Friend Circles graphs 0 — 1200
The Largest Circle graphs 0 — 1200
Is There a Route graphs 0 — 1200
Height of the Tree bfs trees 0 — 1200
The Divisor Game math games 0 — 1200
Race to N math games 0 — 1200
Look and Say implementation strings 0 — 1200
Binary Addition math strings 0 — 1200
Valid IPv4 Address implementation strings 0 — 1200
Squares in a Range math 0 — 1200
Spreadsheet Column Name math implementation 0 — 1200
League Champion implementation 1
100%
1200
Compound Doubling math 0 — 1200
Bulls and Cows implementation 0 — 1200
Reverse Every Other Chunk strings 0 — 1200
Count Cubes in a Range math 0 — 1200
Count Triangulars in a Range math 0 — 1200
Count Fibonaccis in a Range math 0 — 1200
Digits on the Pages math 0 — 1200
Balanced Prefix strings prefix-sums 0 — 1200
Mirror the Bits bitwise 0 — 1200
Forgetful Addition implementation 0 — 1200
Deletions to Anagrams strings 0 — 1200
Favourite Bigram strings 0 — 1200
All the Rectangles math combinatorics 1
20%
1200
All Gray Codes bitwise 0 — 1200
Position of the K-th One implementation binary-search 0 — 1200
One Perfect Trade dp greedy 0 — 1200
Longest Arithmetic Stretch implementation 0 — 1200
One Meeting Room intervals sorting 0 — 1200
Magic Square implementation 0 — 1200
Parse the Number implementation strings 0 — 1200
Make Everyone Equal math sorting 0 — 1200
Repdigits in Range math digit-dp 1
50%
1200
Points Within Reach geometry 0 — 1200