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# Problem Tags Rating Solved
215-B Olympic Medal
greedy math
1300
215-A Bicycle Chain
brute force implementation
900
214-B Hometask
brute force constructive algorithms greedy +1
1600
214-A System of Equations
brute force
800
213-E Two Permutations
data structures hashing strings
2700
213-D Stars
constructive algorithms geometry
2300
213-C Relay Race
dp
2000
213-B Numbers
combinatorics dp
1900
213-A Game
dfs and similar greedy
1700
212-E IT Restaurants
dfs and similar dp trees
1500
212-D Cutting a Fence
binary search data structures dsu
2500
212-C Cowboys
combinatorics dp math
2100
212-B Polycarpus is Looking for Good Substrings
bitmasks hashing implementation
2300
212-A Privatization
flows graphs
3000
209-C Trails and Glades
constructive algorithms dsu graphs +1
2400
209-B Pixels
constructive algorithms math
2100
209-A Multicolored Marbles
dp math
1600
208-E Blood Cousins
binary search data structures dfs and similar +1
2100
208-D Prizes, Prizes, more Prizes
implementation
1200
208-C Police Station
dp graphs shortest paths
1900
208-B Solitaire
dfs and similar dp
1900
208-A Dubstep
strings
900
207-D9 The Beaver's Problem - 3
1800
207-D8 The Beaver's Problem - 3
2300
207-D7 The Beaver's Problem - 3
1600
207-D6 The Beaver's Problem - 3
2100
207-D5 The Beaver's Problem - 3
1600
207-D4 The Beaver's Problem - 3
2100
207-D3 The Beaver's Problem - 3
2000
207-D2 The Beaver's Problem - 3
2000
207-D10 The Beaver's Problem - 3
2100
207-D1 The Beaver's Problem - 3
1800
207-C3 Game with Two Trees
data structures
2700
207-C2 Game with Two Trees
2200
207-C1 Game with Two Trees
2100
207-B3 Military Trainings
1700
207-B2 Military Trainings
1900
207-B1 Military Trainings
1600
207-A3 Beaver's Calculator 1.0
greedy
2000
207-A2 Beaver's Calculator 1.0
greedy
1800
207-A1 Beaver's Calculator 1.0
greedy
1600
205-B Little Elephant and Sorting
brute force greedy
1400
205-A Little Elephant and Rozdil
brute force implementation
900
204-E Little Elephant and Strings
data structures implementation string suffix structures +1
2800
204-D Little Elephant and Retro Strings
dp
2400
204-C Little Elephant and Furik and Rubik
math probabilities
2000
204-B Little Elephant and Cards
binary search data structures
1500
204-A Little Elephant and Interval
binary search combinatorics dp
1500
203-E Transportation
greedy sortings two pointers
2300
203-D Hit Ball
geometry implementation math
1700