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# Problem Tags Rating Solved
2063-D Game With Triangles
binary search brute force data structures +6
2000
2063-C Remove Exactly Two
brute force data structures dfs and similar +5
1600
2063-B Subsequence Update
constructive algorithms data structures greedy +1
1100
2063-A Minimal Coprime
math number theory
800
2062-H Galaxy Generator
bitmasks combinatorics dp
3500
2062-G Permutation Factory
flows geometry graph matchings +1
3500
2062-F Traveling Salescat
constructive algorithms dp geometry +4
2900
2062-E2 The Game (Hard Version)
data structures dfs and similar games +3
3000
2062-E1 The Game (Easy Version)
data structures dfs and similar games +3
2000
2062-D Balanced Tree
dfs and similar dp graphs +2
2200
2062-C Cirno and Operations
brute force math
1200
2062-B Clockwork
greedy math
900
2062-A String
constructive algorithms greedy math +1
800
2061-I Kevin and Nivek
divide and conquer dp
3500
2061-H2 Kevin and Stones (Hard Version)
flows graphs
3500
2061-H1 Kevin and Stones (Easy Version)
flows graph matchings graphs
3500
2061-G Kevin and Teams
constructive algorithms graphs interactive
2900
2061-F2 Kevin and Binary String (Hard Version)
data structures dp
3500
2061-F1 Kevin and Binary String (Easy Version)
greedy implementation
2100
2061-E Kevin and And
bitmasks brute force dp +3
2000
2061-D Kevin and Numbers
bitmasks data structures
1600
2061-C Kevin and Puzzle
2-sat combinatorics dp
1600
2061-B Kevin and Geometry
binary search geometry
1100
2061-A Kevin and Arithmetic
math
800
2060-G Bugged Sort
dp greedy sortings
2400
2060-F Multiplicative Arrays
combinatorics dp number theory
2200
2060-E Graph Composition
dfs and similar dsu graphs +1
1500
2060-D Subtract Min Sort
greedy
1100
2060-C Game of Mathletes
games greedy sortings +1
900
2060-B Farmer John's Card Game
greedy sortings
1000
2060-A Fibonacciness
brute force
800
2059-E2 Stop Gaming (Hard Version)
brute force constructive algorithms data structures +2
2900
2059-E1 Stop Gaming (Easy Version)
brute force constructive algorithms greedy +2
2500
2059-D Graph and Graph
data structures graphs greedy +1
1900
2059-C Customer Service
brute force constructive algorithms graph matchings +3
1600
2059-B Cost of the Array
brute force constructive algorithms greedy +1
1300
2059-A Milya and Two Arrays
constructive algorithms greedy sortings
800
2057-H Coffee Break
data structures greedy math
3500
2057-G Secret Message
constructive algorithms dfs and similar math
3000
2057-F Formation
binary search data structures dp +2
3300
2057-E2 Another Exercise on Graphs (hard version)
binary search dfs and similar dp +4
2500
2057-E1 Another Exercise on Graphs (Easy Version)
binary search brute force dp +4
2300
2057-D Gifts Order
data structures greedy implementation +2
2000
2057-C Trip to the Olympiad
bitmasks constructive algorithms greedy +1
1500
2057-B Gorilla and the Exam
greedy sortings
1000
2057-A MEX Table
constructive algorithms math
800
2056-F2 Xor of Median (Hard Version)
bitmasks brute force combinatorics +2
3000
2056-F1 Xor of Median (Easy Version)
bitmasks brute force combinatorics +2
2700
2056-E Nested Segments
combinatorics dfs and similar dp +2
2500
2056-D Unique Median
binary search brute force combinatorics +3
2200