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