Problems
Equal substrings#4843
Very easy · Hashing · Strings
Finding a Common Substring#4844
Very easy · Strings
Maximum Common Substring#4845
Easy · Suffix Array · Strings
Monopoly#4846
Easy · Greedy algorithms
Priority Queue#4847
Easy · Data Structures · Priority Queue
Quick Sort#4848
Very easy · Sorting
Electric trains#4849
Easy · Implementation
Magic machine#4850
Very easy · Breadth-first Search
Details#4851
Easy · Graphs
The shortest distance#4852
Very easy · Breadth-first Search · Graphs
The shortest path#4853
Easy · Breadth-first Search
Reverse me!#4854
Very easy · Graphs
Baobab#4855
Very easy · Graphs
The Shortest Path#4856
Medium · Shortest paths · Dijkstra algorithm
Olympiad in Hogwarts#4857
Very easy · Math
Ordered numbers#4858
Medium · Brute force
Boring lecture#4859
Easy · Strings
Cleopatra's Circlet#4860
Medium · Implementation · Math
Sections in Makhovniki#4861
Easy · Graphs
Hexerpents of Hexwamp#4871
Very hard · Breadth-first Search · Graphs · Hashing
Miner#4875
Very easy · Greedy algorithms
World Assembly#4876
Hard · Geometry
Pinball in Pascal's Triangle#4877
Very easy · Dynamic programming
Spy#4878
Medium · Geometry
Square#4879
Hard · Implementation