Start Solving

#25 Implement strStr()
Google Strings
Easy
1800M
39.4%
Solve
#26 Jump Game
Amazon Arrays Greedy
Medium
2200M
38.6%
Solve
#27 N-Queens
Google Backtracking DFS
Hard
900M
55.3%
Solve
#28 Sort Colors
Microsoft Arrays Sorting
Medium
2400M
58.7%
Solve
#29 Min Stack
Amazon Stacks
Easy
2600M
43.2%
Solve
#30 Lowest Common Ancestor of BST
Google Facebook Trees DFS
Medium
2100M
66.4%
Solve
#31 House Robber
Apple Dynamic Programming
Medium
3100M
47.9%
Solve
#32 Course Schedule II
Google Graphs Topological Sort
Hard
1100M
48.0%
Solve
#33 Power of Two
Microsoft Math
Easy
1700M
44.1%
Solve
#34 Find First and Last Position of Element
Amazon Binary Search Greedy
Medium
1400M
41.2%
Solve
#35 Implement Queue Using Stacks
Apple Queues
Easy
1900M
63.8%
Solve
#36 Sliding Window Maximum
Google Sliding Window Deque
Hard
1300M
52.7%
Solve