المسائل
Parallelepiped#1
سهل جدًا · Math
Grandchildren#2
سهل جدًا · Math
Colorful Balls#3
سهل · Brute force · Combinatorics
Colorful String#4
سهل · Combinatorics · Greedy algorithms
Painting stones#5
متوسط · Greedy algorithms · Math · Sorting
Pairwise Product#6
متوسط · Prefix Sums · Math · Combinatorics
Sashko-Array Constructor#7
متوسط · Prime factorization · Greedy algorithms
Sets#8
متوسط · Combinatorics · Number theory · Binary Search
Pies#9
سهل جدًا · Math
Arithmetic Mean#10
سهل جدًا · Math
Cossack Vus and Friend at CP Olympiad#11
سهل · Implementation
Add and Minimize#12
متوسط · Greedy algorithms · Sorting
Magic Knights#13
متوسط · Combinatorics · Math
Trivial? Solve It!#14
متوسط · Number theory · Math · Prefix Sums
Rook#15
سهل جدًا · Math
Coordinates#16
سهل جدًا · Math
Sleepy Sasha is Trouble at the University#17
سهل جدًا · Math
Bohdan against "tails"#18
سهل · Hashing
Pasha is also against "tails"?#19
سهل · Sorting · Math
Anton buys a piglet#20
صعب · Greedy algorithms · Binary Search · Constructive Algorithms · Number theory