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

Daily Challenge: Fewest Hops (1300) Solve it to start a streak

math Problems

282 practice problems tagged math , from difficulty 800 to 2100 — solve them in our in-browser judge with instant verdicts. Browse all problems.

Related: matrix-exponentiation implementation number-theory combinatorics geometry games bitwise sorting prefix-sums digit-dp

ProblemTopics Solvers Acceptance Difficulty
Collatz Steps math implementation 0 — 1000
Collatz Peak math implementation 0 — 1000
Tetrahedral Numbers math 0 — 1000
Abundant Number math 0 — 1000
Automorphic Number math 0 — 1000
Disarium Number math 0 — 1000
Power of Three math 0 — 1000
Three in a Line math geometry 0 — 1000
The First N Primes math 0 — 1000
The Final Exam math 0 — 1000
Doubling Your Money math 0 — 1000
Taxi Fare Bands math 0 — 1000
Bacteria in a Dish math 0 — 1000
The K-th Cube Number math 0 — 1000
The K-th Triangular Number math 0 — 1000
Count Power Of Twos in a Range math 0 — 1000
The K-th Fibonacci Number math 0 — 1000
Even-Sum Pairs math 0 — 1000
Additive Sequence math implementation 0 — 1000
Triangular Number Modulo math 0 — 1000
Fibonacci Number math dp 2
33%
1100
Product Modulo 1e9+7 math 0 — 1100
Decimal to Base K math 0 — 1100
Perfect Number math 0 — 1100
GCD of Everything math number-theory 0 — 1100
Counting All Subsets math combinatorics 0 — 1100
Triangular Number math 0 — 1100
Multiplicative Persistence math implementation 0 — 1100
The Bishop's Colors math 0 — 1100
Factorion math 5
63%
1100
Ugly Number math 0 — 1100
Closest to the Origin math geometry 0 — 1100
Right Triangle math geometry 0 — 1100
Spreadsheet Column Number math implementation 0 — 1100
Candles from Stubs math 0 — 1100
Working Together math 0 — 1100
Wrapper Promotion math 0 — 1100
Count Squares in a Range math 0 — 1100
The K-th Pentagonal Number math 0 — 1100
The K-th Hexagonal Number math 0 — 1100
Even-Product Pairs math 0 — 1100
Raise Everyone Up math 0 — 1100
Power of Four math bitwise 0 — 1100
A Fixed Remainder math 0 — 1100
Sum of the First K Fibonacci Numbers math 0 — 1100
Stacking Pentagons math 0 — 1100
Stacking Hexagons math 0 — 1100
Distinct Prime Factors math number-theory 0
0%
1200
Counting Euclid's Steps math 0
0%
1200
The Missing Term math 0 — 1200