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