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