المسائل
Three digit numbers#4101
متوسط · Brute force · Implementation
Email#4102
سهل جدًا · Implementation
Roman Numerals#4103
سهل جدًا · Implementation
Distance in Tree#4104
سهل جدًا · Graphs
Sapper#4105
سهل جدًا · Implementation
Subsets generation#4106
سهل جدًا · Bitmasks · Implementation · Brute force
Totient Extreme#4107
سهل جدًا · Number theory
RHTML Markup Language 1.0#4108
سهل · Implementation
Combining Rectangles#4109
سهل · Geometry
Route in the matrix#4110
سهل · Dynamic programming
Anagrams#4111
سهل جدًا · Implementation
Military base#4112
سهل · Graphs · Depth-first Search
Heavy Cargo#4114
سهل جدًا · Graphs · Shortest paths
Binary Search#4117
صعب · Binary Search
Frontier#4118
سهل · Geometry · Convex Hull
Disk Tree#4119
سهل · Implementation
Robot Navigation#4120
متوسط · Breadth-first Search · Shortest paths · Graphs · Combinatorics
All Your Base#4121
صعب · Number theory · Constructive Algorithms
Periodic, My Dear Watson#4122
سهل · Brute force · Strings
This is Halloween: Saving Money#4123
متوسط · Geometry · Math
Tile Art#4124
سهل جدًا · Math
Thinking Inside the Box#4125
صعب · Geometry
Lightbulb Testing#4126
صعب · Expression parsing · Binary Search · Greedy algorithms
Operation: Merchant Boorinei#4127
سهل · Shortest paths · Graphs
Kingdoms#4128
سهل جدًا · Graphs