المسائل
Form guide#2542
سهل · Strings
Cracking Tree Codes#2543
متوسط · Graphs
uHunt#2544
متوسط · Implementation
Moose Calf#2545
سهل جدًا · Implementation
Forks and knives#2546
سهل جدًا · Implementation
Squirrel#2547
سهل · Implementation
Symmetrical Glade#2548
سهل · Brute force · Implementation
Papa Carlo#2549
سهل جدًا · Number theory
Not so trivial problem#2550
صعب جدًا · Trees · String suffix structures
Sort by sum of digits#2551
صعب جدًا · Sorting
Roman numerals#2552
صعب جدًا · Brute force · Strings
Image and Shadow#2553
صعب جدًا · Implementation
Magic Square#2554
متوسط · Brute force · Graphs
GLONASS#2555
متوسط · Geometry · Math
Space competition#2556
صعب · Trees · Shortest paths · Greedy algorithms · Disjoint set union · Breadth-first Search
Color game#2557
صعب جدًا · Implementation
Serial Numbers#2558
متوسط · Dynamic programming · Graphs · Matrix
Processor's Game#2559
صعب جدًا · Implementation
Secret — MAX#2560
صعب جدًا · Dynamic programming · Strings
Safety Grade#2561
متوسط · Graphs
Search by template#2562
متوسط · Implementation
Roots Intervals#2563
سهل · Math
Palindromic Dates#2564
صعب · Binary Search · Strings · Sorting
Post Offices#2565
صعب جدًا · Geometry · Data Structures · Sorting
Choosing a Camera#2566
متوسط · Priority Queue · Implementation