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# Problem Tags Rating Solved
833-A The Meaningless Game
math number theory
1700
832-E Vasya and Shifts
matrices
2600
832-D Misha, Grisha and Underground
dfs and similar graphs trees
1900
832-C Strange Radiation
binary search implementation math
2500
832-B Petya and Exam
implementation strings
1600
832-A Sasha and Sticks
games math
800
831-C Jury Marks
brute force constructive algorithms
1700
831-B Keyboard Layouts
implementation strings
800
831-A Unimodal Array
implementation
1000
830-E Perpetual Motion Machine
constructive algorithms dp graphs +3
3100
830-D Singer House
combinatorics dp graphs +1
2800
830-C Bamboo Partition
brute force data structures implementation +4
2300
830-B Cards Sorting
data structures implementation sortings
1600
830-A Office Keys
binary search brute force dp +2
1800
828-B Black Square
implementation
1300
828-A Restaurant Tables
implementation
1200
827-F Dirty Arkady's Kitchen
data structures dp graphs +1
3200
827-E Rusty String
fft math strings
2700
827-D Best Edge Weight
data structures dfs and similar graphs +1
2700
827-C DNA Evolution
data structures strings
2100
827-B High Load
constructive algorithms greedy implementation +1
1800
827-A String Reconstruction
data structures greedy sortings +1
1700
825-G Tree Queries
dfs and similar graphs trees
2500
825-F String Compression
dp hashing string suffix structures +1
2400
825-E Minimal Labels
data structures dfs and similar graphs +1
2300
825-D Suitable Replacement
binary search greedy implementation
1500
825-C Multi-judge Solving
greedy implementation
1600
825-B Five-In-a-Row
brute force implementation
1600
825-A Binary Protocol
implementation
1100
822-F Madness
constructive algorithms dfs and similar trees
2500
822-E Liar
binary search dp hashing +1
2400
822-D My pretty girl Noora
brute force dp greedy +2
1800
822-C Hacker, pack your bags!
binary search greedy implementation +1
1600
822-B Crossword solving
brute force implementation strings
1000
822-A I'm bored with life
implementation math number theory
800
821-E Okabe and El Psy Kongroo
dp matrices
2100
821-D Okabe and City
dfs and similar graphs shortest paths
2200
821-C Okabe and Boxes
data structures greedy trees
1500
821-B Okabe and Banana Trees
brute force math
1300
821-A Okabe and Future Gadget Laboratory
implementation
800
820-C Mister B and Boring Game
games greedy
2200
820-B Mister B and Angle in Polygon
constructive algorithms geometry math
1300
820-A Mister B and Book Reading
implementation
900
819-E Mister B and Flight to the Moon
constructive algorithms graphs
2800
819-D Mister B and Astronomers
number theory
2900
819-C Mister B and Beacons on Field
number theory
2900
819-B Mister B and PR Shifts
data structures implementation math
1900
818-G Four Melodies
flows graphs
2600
818-F Level Generation
binary search math ternary search
2100
818-E Card Game Again
binary search data structures number theory +1
1900