Practice Problems

Solve challenges, earn MateCoins

Clear all
70 Problems
Sort:
Longest Increasing Subsequence
Array Binary Search Dynamic Programming
Medium
0.0%
+25 coins
Login
Capacity to Ship Packages Within D Days
Array Binary Search
Medium
0.0%
+25 coins
Login
Koko Eating Bananas
Array Binary Search
Medium
0.0%
+25 coins
Login
Excel Sheet Column Number
Math String
Medium
0.0%
+25 coins
Login
Longest Common Prefix
String
Medium
0.0%
+25 coins
Login
Reverse Words in a String
String Two Pointers
Medium
0.0%
+25 coins
Login
Rotate Array
Array Math Two Pointers
Medium
0.0%
+25 coins
Login
Best Time to Buy and Sell Stock II
Array Dynamic Programming
Medium
0.0%
+25 coins
Login
Merge Sorted Array
Array Sorting Two Pointers
Medium
0.0%
+25 coins
Login
Two Sum II - Input Array Is Sorted
Array Binary Search Two Pointers
Medium
0.0%
+25 coins
Login
Word Ladder
Breadth-First Search Hash Table String
Hard
0.0%
+50 coins
Login
N-Queens
Array Backtracking
Hard
0.0%
+50 coins
Login
First Missing Positive
Array Hash Table
Hard
0.0%
+50 coins
Login
Sliding Window Maximum
Array Heap (Priority Queue) Sliding Window
Hard
0.0%
+50 coins
Login
Largest Rectangle in Histogram
Array Stack
Hard
0.0%
+50 coins
Login
Edit Distance
Dynamic Programming String
Hard
0.0%
+50 coins
Login
Jump Game II
Array Dynamic Programming
Hard
0.0%
+50 coins
Login
Minimum Window Substring
Hash Table Sliding Window String
Hard
0.0%
+50 coins
Login
Merge K Sorted Lists
Divide and Conquer Heap (Priority Queue) Linked List Sorting
Hard
0.0%
+50 coins
Login
Trapping Rain Water
Array Dynamic Programming Stack Two Pointers
Hard
0.0%
+50 coins
Login
Page 1 of 4 Next