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Coding problems
Algorithm problems with tests in Python, JavaScript, Java, Go and C++, checked on our server.
Any difficulty
Easy
Medium
Hard
Array
1760
String
729
Hash Table
585
Dynamic Programming
558
Math
526
Sorting
432
Greedy
398
Binary Search
270
Depth-First Search
262
Matrix
239
Bit Manipulation
223
Breadth-First Search
207
Two Pointers
200
Prefix Sum
189
Tree
186
Heap (Priority Queue)
167
Simulation
163
Graph
152
43 more
Which Pot Runs Dry First
Math · Dynamic Programming · Probability and Statistics
Medium
Chance of Not Going Over
Math · Dynamic Programming · Sliding Window
Medium
Summary From a Tally Sheet
Array · Math · Probability and Statistics
Medium
Last Viewer in the Right Seat
Brainteaser · Math · Dynamic Programming
Medium
Odds of Exactly That Many Heads
Array · Math · Dynamic Programming
Medium
A Fair Split of Colored Beads
Array · Math · Dynamic Programming
Hard
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