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