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# Problem Tags Rating Solved
645-A Amity Assessment
brute force constructive algorithms implementation
1200
644-C Hostname Aliases
*special binary search data structures +3
2100
644-B Processing Queries
*special constructive algorithms data structures +1
1700
644-A Parliament of Berland
*special constructive algorithms
1000
643-G Choosing Ads
data structures
3200
643-F Bears and Juice
dp math meet-in-the-middle
2900
643-E Bear and Destroying Subtrees
dp math probabilities +1
2700
643-D Bearish Fanpages
2900
643-C Levels and Regions
dp
2400
643-B Bear and Two Paths
constructive algorithms graphs
1600
643-A Bear and Colors
implementation
1500
641-G Little Artem and Graph
2300
641-F Little Artem and 2-SAT
3000
641-E Little Artem and Time Machine
data structures
2000
641-D Little Artem and Random Variable
dp implementation math +1
2400
641-C Little Artem and Dance
brute force constructive algorithms implementation
1800
641-B Little Artem and Matrix
implementation
1400
641-A Little Artem and Grasshopper
implementation
1000
639-F Bear and Chemistry
data structures dfs and similar graphs +1
3300
639-E Bear and Paradox
binary search greedy math +1
2800
639-D Bear and Contribution
data structures greedy sortings +1
2400
639-C Bear and Polynomials
hashing implementation math
2200
639-B Bear and Forgotten Tree 3
constructive algorithms graphs trees
1600
639-A Bear and Displayed Friends
implementation
1200
638-D Three-dimensional Turtle Super Computer
brute force dfs and similar graphs
1800
638-C Road Improvement
*special dfs and similar graphs +2
1800
638-B Making Genome in Berland
*special dfs and similar strings
1500
638-A Home Numbers
*special constructive algorithms math
1100
637-D Running with Obstacles
*special data structures dp +1
1600
637-C Promocodes with Mistakes
*special brute force constructive algorithms +1
1400
637-B Chat Order
*special binary search constructive algorithms +2
1200
637-A Voting for Photos
*special constructive algorithms implementation
1000
635-A Orchestra
brute force implementation
1100
634-A Island Puzzle
constructive algorithms implementation
1300
633-H Fibonacci-ish II
data structures implementation
3100
633-G Yash And Trees
bitmasks data structures dfs and similar +2
2800
633-F The Chocolate Spree
dfs and similar dp graphs +1
2600
633-E Startup Funding
binary search constructive algorithms data structures +2
2400
633-D Fibonacci-ish
brute force dp hashing +2
2000
633-C Spy Syndrome 2
data structures dp hashing +4
1900
633-B A Trivial Problem
brute force constructive algorithms math +1
1300
633-A Ebony and Ivory
brute force math number theory
1100
632-F Magic Matrix
brute force divide and conquer graphs +2
2400
632-E Thief in a Shop
divide and conquer dp fft +1
2400
632-D Longest Subsequence
brute force math number theory
2100
632-C The Smallest String Concatenation
sortings strings
1700
632-B Alice, Bob, Two Teams
brute force constructive algorithms
1400
632-A Grandma Laura and Apples
1200
631-E Product Sum
data structures dp geometry
2600
631-D Messenger
data structures hashing implementation +2
2100