Problems
Happy Birthday!!!#4353
Very easy · Implementation · Brute force
The problem about the chest#4354
Medium · Math · Implementation
Sheep in the hall#4355
Very easy · Geometry
Long long Catfish#4356
Easy · Dynamic programming
The problem about the chest (Hard)#4357
Very easy · Dynamic programming · Prime factorization
T-shirter#4358
Easy · Dynamic programming · Brute force
Sweets for mushrooms#4359
Easy · Greedy algorithms · Priority Queue
Solarium for mushrooms#4360
Very easy · Binary Search
Solarium for mushrooms (Hard)#4361
Very easy · Binary Search
Vanya, inscribed in the polygon#4362
Hard · Geometry
Listen to the song#4363
Easy · Dynamic programming
Listen to the song (Hard)#4364
Medium · Dynamic programming
Walrus on the blocks of ice#4365
Very easy · Graphs
Game with palindromes#4366
Very easy · Strings · Implementation
Game with palindromes (Hard)#4367
Very easy · Games
Triangular web#4368
Very easy · Math · Prefix Sums · Number theory
Arson#4369
Very easy · Graphs · Breadth-first Search
Evacuation#4370
Medium · Graphs
Combustion and Connectivity Components#4371
Medium · Graphs · Disjoint set union
Reconstruction of the Web#4372
Hard · Breadth-first Search · Graphs · Shortest paths · Number theory
Quadratic equation#4373
Very hard · Implementation · Math
Graph connectivity#4374
Very hard · Graphs
Matrix inversion#4375
Medium · Matrix
Oxymoron#4376
Medium · Implementation
Death Star 2#4377
Hard · Matrix