Practice Problems

Daily Challenge: Paths Around the Walls (1500) Solve it to start a streak

Practice Problems

ProblemTopics Solvers Acceptance Difficulty
Is It a Subsequence strings two-pointers 0 — 1100
Longest Common Prefix strings 0 — 1100
Static Range Sums prefix-sums 0 — 1100
Sort by Absolute Value sorting 0 — 1100
Widest Gap sorting 0 — 1100
Third Distinct Maximum implementation 0 — 1100
Alternating Parity Stretch implementation 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
Climbing the Staircase dp 0 — 1100
Flips to Convert bitwise 0 — 1100
Count the Leaves trees 0 — 1100
Top K Values heap sorting 1
50%
1100
Count Evens in a Range prefix-sums 0 — 1100
Count Negatives in a Range prefix-sums 0 — 1100
Common Elements implementation 0 — 1100
The Bishop's Colors math 0 — 1100
Order by Digit Sum sorting 0 — 1100
Order by Set Bits sorting 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
Login Streak sorting 0 — 1100
Candles from Stubs math 0 — 1100
Working Together math 0 — 1100
Wrapper Promotion math 0 — 1100
Longest Common Suffix strings 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
Digit Duel implementation 0 — 1100
Rearrange into a Palindrome strings 0 — 1100
Increasing Array greedy 0 — 1100
Anti-Diagonal Sums implementation 0 — 1100
Toeplitz Matrix implementation 0 — 1100
Sum of the First K Fibonacci Numbers math 0 — 1100
Stacking Pentagons math 0 — 1100
Stacking Hexagons math 0 — 1100
Roman Numerals implementation 1
100%
1200
Rotation of Each Other strings 0 — 1200
Three Kinds of Brackets strings stack 0 — 1200