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# Problem Tags Rating Solved
1141-A Game 23
implementation math
1000
1140-G Double Tree
data structures divide and conquer shortest paths +1
2700
1140-F Extending Set of Points
data structures divide and conquer dsu
2600
1140-E Palindrome-less Arrays
combinatorics divide and conquer dp
2200
1140-D Minimum Triangulation
dp greedy math
1200
1140-C Playlist
brute force data structures sortings
1600
1140-B Good String
implementation strings
1200
1140-A Detective Book
implementation
1000
1139-F Dish Shopping
data structures divide and conquer
2500
1139-E Maximize Mex
flows graph matchings graphs
2400
1139-D Steps to One
dp math number theory +1
2300
1139-C Edgy Trees
dfs and similar dsu graphs +2
1500
1139-B Chocolates
greedy implementation
1000
1139-A Even Substrings
implementation strings
800
1138-B Circus
brute force greedy math +1
1800
1138-A Sushi for Two
binary search greedy implementation
900
1137-F Matches Are Not a Child's Play
data structures trees
3400
1137-E Train Car Selection
data structures greedy
2700
1137-D Cooperative Game
constructive algorithms interactive number theory
2400
1137-C Museums Tour
dp graphs implementation
2500
1137-B Camp Schedule
greedy hashing strings
1600
1137-A Skyscrapers
implementation sortings
1600
1136-E Nastya Hasn't Written a Legend
binary search data structures
2200
1136-D Nastya Is Buying Lunch
greedy
1800
1136-C Nastya Is Transposing Matrices
constructive algorithms sortings
1500
1136-B Nastya Is Playing Computer Games
constructive algorithms math
1000
1136-A Nastya Is Reading a Book
implementation
800
1133-F2 Spanning Tree with One Fixed Degree
constructive algorithms dfs and similar dsu +2
1900
1133-F1 Spanning Tree with Maximum Degree
graphs
1600
1133-E K Balanced Teams
dp sortings two pointers
1800
1133-D Zero Quantity Maximization
hashing math number theory
1500
1133-C Balanced Team
sortings two pointers
1200
1133-B Preparation for International Women's Day
math number theory
1200
1133-A Middle of the Contest
implementation
1000
1132-G Greedy Subsequences
data structures dp trees
2400
1132-F Clear the String
dp
2000
1132-E Knapsack
dfs and similar dp greedy
2300
1132-D Stressful Training
binary search greedy
2300
1132-C Painting the Fence
brute force
1700
1132-B Discounts
greedy sortings
900
1132-A Regular Bracket Sequence
greedy implementation
1100
1131-G Most Dangerous Shark
data structures dp two pointers
2700
1131-F Asya And Kittens
constructive algorithms dsu
1700
1131-E String Multiplication
dp greedy strings
2300
1131-D Gourmet choice
dfs and similar dp dsu +2
2000
1131-C Birthday
binary search greedy sortings
1200
1131-B Draw!
greedy implementation
1400
1131-A Sea Battle
math
800
1130-C Connect
brute force dfs and similar dsu
1400
1130-B Two Cakes
greedy
1200