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Automatic Input Verifier#1919
Örän kyn · Implementation
Friendly Points#1920
Ýeňil · Geometry · Sorting · Binary Search
Expanding Lake#1921
Örän kyn · Geometry
Octahedron And Dominoes#1922
Ýeňil · Dynamic programming
Tiny Puzzle#1923
Örän kyn · Brute force · Graphs
Circular Island#1924
Örän kyn · Geometry
Traffic Jam#1925
Örän kyn · Dynamic programming · Shortest paths
Number of Permutations#1926
Örän ýeňil · Dynamic programming · Math
Perspective#1927
Örän ýeňil · Graphs
Enjoy Arithmetic Progressions#1928
Örän kyn · Dynamic programming
Completely Non-zero Determinant#1929
Ýeňil · Matrix
Fast Typing#1930
Örän kyn · Dynamic programming · Probabilities
XYZX 2009#1931
Örän ýeňil · Implementation
Greatest Greatest Common Divisor#1932
Örän ýeňil · Number theory
Colored Wizards - 2#1933
Örän ýeňil · Graphs
Graph of operations#1934
Örän ýeňil · 2-SAT
Regular matching#1935
Örän kyn · Graphs · Graph matchings
Flights#1936
Örän ýeňil · Graphs · Shortest paths
Fire safety#1937
Örän ýeňil · Graphs
Island Nations#1938
Ýeňil · Graphs · Shortest paths
King#1939
Ýeňil · Graphs
Ice rink#1940
Kyn · Brute force · Implementation · Graphs · Depth-first Search
Ancestor#1941
Ýeňil · Trees
Inevitability#1942
Örän ýeňil · Graphs
Bridges#1943
Örän ýeňil · Graphs