Задачи
Brackets#1653
Лесно · Dynamic programming · Strings
Collinear Points#1654
Много лесно · Geometry
The Least Common Multiple#1655
Много лесно · Number theory
Sorting#1656
Лесно · Sorting
Rectangles#1657
Трудно · Geometry
Factorial#1658
Много лесно · Implementation
Game#1660
Лесно · Dynamic programming
Aladdin's knapsack#1661
Лесно · Knapsack
Bracket sequences#1663
Много лесно · Brute force
Gold Rush#1664
Трудно · Graphs · Dynamic programming
The Tower of Babel#1665
Лесно · Dynamic programming
Mines#1666
Много лесно · Geometry
Graph condensation#1667
Много лесно · Graphs
Matching#1669
Много трудно · Graphs · Graph matchings
The average distance#1670
Много лесно · Graphs
Candy#1671
Средно · Dynamic programming
Olympiad#1672
Лесно · Dynamic programming
Sim-sim#1673
Средно · Math · Prefix Sums
Air conditioner#1674
Много лесно · Implementation
Square Digital Root#1675
Лесно · Implementation
Fractal#1676
Лесно · Dynamic programming
Snake#1677
Лесно · Implementation
Gifts#1678
Лесно · Implementation
Honest Chain#1679
Много лесно · Prefix Sums
Hamiltonian cycle#1680
Лесно · Graphs