Problems
Degrees of vertices by a list of edges#5074
Very easy · Implementation
Half-degrees of vertices by edge lists#5075
Very easy · Graphs · Implementation
Regular graph#5076
Easy · Graphs · Implementation
Semi-complete graph#5077
Very easy · Graphs · Implementation
Graph tournament#5078
Very easy · Graphs
Transitivity of directed graph#5079
Very easy · Graphs
Number of pendant vertices 1#5080
Very easy · Implementation
Lanterns#5081
Very easy · Dynamic programming · Math
Degrees of vertices#5082
Very easy · Graphs · Implementation
Sum of digits#5083
Very easy · Brute force
Interval Less Query#5084
Easy · Prefix Sums · Queries
XOR 1#5085
Very easy · Bitwise Operations · Strings
Compare Big Integers#5086
Very easy · Implementation
Implement a stack#5087
Very easy · Stacks
Number of hanging vertices 2#5088
Very easy · Graphs
Vocabulary#5089
Very easy · Sorting
At the intersection#5090
Very easy · Implementation · Prefix Sums
Explosive containers#5091
Easy · Combinatorics · Dynamic programming
Honeycomb#5092
Medium · Dynamic programming
Funding#5093
Very easy · Math
Substrings-3#5094
Medium · Hashing · Binary Search
XOR 2#5095
Very easy · Implementation
Shagrath#5096
Very easy · Implementation
Reverse the bit number#5097
Very easy · Implementation
Three rings for the elven kings#5098
Very easy · Data Structures · Prefix Sums