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# Problem Tags Rating Solved
649-B Этажи
constructive algorithms
1400
649-A Любимые числа Поликарпа
constructive algorithms implementation
1000
648-E Собери число
graphs shortest paths
2300
648-D Собачки и миски
data structures greedy sortings
1900
648-C Путь Робота
constructive algorithms dfs and similar graphs
1100
648-B Собери стол
constructive algorithms sortings
800
648-A Наибольший подъем
constructive algorithms implementation
900
645-G Armistice Area Apportionment
binary search geometry
3200
645-F Cowslip Collections
combinatorics math number theory
2500
645-E Intellectual Inquiry
dp greedy strings
2200
645-D Robot Rapping Results Report
binary search dp graphs
1800
645-C Enduring Exodus
binary search two pointers
1600
645-B Mischievous Mess Makers
greedy math
1200
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