Practice Problems

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

Practice Problems — 1600-2000

ProblemTopics Solvers Acceptance Difficulty
Smallest Period strings 0 — 1600
Count the Inversions divide-and-conquer sorting 0 — 1600
Euler's Totient math number-theory 0 — 1600
Geometric Series Modulo math 0 — 1600
Count the Derangements math combinatorics 0 — 1600
Perfect Power math 0 — 1600
Largest Concatenation greedy sorting 0 — 1600
Fewest Jumps to the End greedy 0 — 1600
Around the Circuit greedy 0 — 1600
Smallest Impossible Sum greedy sorting 0 — 1600
Smallest Sufficient Capacity binary-search 0 — 1600
Minimum Eating Speed binary-search 0 — 1600
Fair Reading Load binary-search 0 — 1600
Search a Rotated Array binary-search 0 — 1600
Loot on a Ring Road dp 0 — 1600
Longest Increasing Subsequence dp binary-search 0 — 1600
Two Equal Piles dp 1
100%
1600
The 0/1 Knapsack dp 1
100%
1600
Unlimited Supplies dp 0 — 1600
Delete and Earn dp 0 — 1600
Longest Common Subsequence strings dp 0 — 1600
Largest All-Ones Square dp 0 — 1600
Two Lonely Numbers bitwise 0 — 1600
Deadlock Detection graphs 12
52%
1600
Schedule the Courses graphs sorting 0 — 1600
The Rot Spreads bfs graphs 0 — 1600
Diameter of a Tree bfs trees 0 — 1600
Sliding Window Minimum sliding-window stack 0 — 1600
Static Range Minimum sparse-table 0 — 1600
Farthest by Manhattan math geometry 0 — 1600
Zero Triplets sorting two-pointers 0 — 1600
Longest Common Substring strings dp 0 — 1600
Number Spiral math 0 — 1600
Counting a Digit math 0 — 1600
Numbers That Contain D math 0 — 1600
Two Peaceful Knights math combinatorics 0 — 1600
Range Products, Zeros Included math prefix-sums 0 — 1600
Independent Cycles math graphs union-find 0 — 1600
The Mountain Subsequence dp 0 — 1600
Trim to Non-Decreasing dp binary-search 0 — 1600
The Fairest Cut dp 0 — 1600
Kadane, Minus One dp 0 — 1600
Longest Path in a DAG dp graphs 0 — 1600
All Inverses at Once number-theory 0 — 1600
Static Range AND sparse-table 0 — 1600
Static Range OR sparse-table 0 — 1600
Static Range Maximum sparse-table 0 — 1600
Fair Candy for Ratings greedy 0 — 1600
Add, Assign, Range Sum fenwick 0 — 1600
Exactly K Odd Numbers two-pointers 0 — 1600