Problems
Distance between the vertices#2965
Very easy · Dijkstra algorithm · Shortest paths · Priority Queue
Pink Floyd#2966
Easy · Graphs
Unification Day#2967
Very easy · Graphs
Shortest Paths#2968
Very easy · Graphs
100 geese#2969
Very easy · Math
Swap#2970
Very easy · Implementation
Stencil#2971
Very easy · Implementation
Biprime numbers#2972
Very easy · Brute force · Math · Number theory
Theory of Six Handshakes#2973
Medium · Shortest paths · Graphs
Target#2974
Very easy · Geometry
Sorting tuples#2975
Medium · Sorting
Without lifting the pencil from the paper#2976
Easy · Graphs
Croatian cube#2977
Very easy · Implementation
Square#2978
Very hard · Geometry
Funny Confusion#2982
Very easy · Implementation
Competition#2983
Medium · Graphs
Abracadabra#2984
Easy · Implementation
Dial#2985
Easy · Brute force · Dynamic programming
Cubes#2986
Easy · Implementation
Polygons#2987
Very easy · Sorting · Implementation
Paths#2988
Very hard · Dynamic programming · Graphs
"WTO"#2989
Medium · Math · Number theory
Cherry#2990
Very hard · Dynamic programming
Alchemy#2991
Hard · Dijkstra algorithm · Graphs · Shortest paths
Chain#2992
Medium · Greedy algorithms