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# Problem Tags Rating Solved
113-A Grammar Lessons
implementation strings
1600
112-B Petya and Square
implementation math
1200
112-A Petya and Strings
implementation strings
800
111-E Petya and Rectangle
2900
111-D Petya and Coloring
combinatorics dp
2300
111-C Petya and Spiders
bitmasks dp dsu
2100
111-B Petya and Divisors
binary search data structures number theory
1900
111-A Petya and Inequiations
greedy
1400
110-B Lucky String
constructive algorithms strings
1100
110-A Nearly Lucky Number
implementation
800
109-E Lucky Interval
brute force math
2700
109-D Lucky Sorting
constructive algorithms sortings
2000
109-C Lucky Tree
dp dsu trees
1900
109-B Lucky Probability
brute force probabilities
1900
109-A Lucky Sum of Digits
brute force implementation
1000
108-B Datatypes
math sortings
1400
108-A Palindromic Times
implementation strings
1000
107-E Darts
geometry probabilities
2700
107-D Crime Management
dp graphs matrices
2400
107-C Arrangement
bitmasks dp
2400
107-B Basketball Team
combinatorics dp math +1
1600
107-A Dorm Water Supply
dfs and similar graphs
1400
106-E Space Rescuers
geometry ternary search
2100
106-D Treasure Island
brute force implementation
1700
106-C Buns
dp
1700
106-B Choosing Laptop
brute force implementation
1000
106-A Card Game
implementation
1000
105-E Lift and Throw
brute force
2500
105-D Entertaining Geodetics
brute force dsu implementation
2700
105-C Item World
brute force implementation sortings
2200
105-B Dark Assembly
brute force probabilities
1800
105-A Transmigration
implementation
1700
104-A Blackjack
implementation
800
103-E Buying Sets
flows graph matchings
2900
103-D Time to Raid Cowavans
brute force data structures sortings
2100
103-C Russian Roulette
constructive algorithms greedy
1900
103-B Cthulhu
dfs and similar dsu graphs
1500
103-A Testing Pants for Sadness
greedy implementation math
1100
102-B Sum of Digits
implementation
1000
102-A Clothes
brute force
1200
101-E Candies and Stones
divide and conquer dp
2500
101-D Castle
dp greedy probabilities +2
2300
101-C Vectors
implementation math
2000
101-B Buses
binary search data structures dp
1700
101-A Homework
greedy
1200
100-J Interval Coloring
*special greedy math
2400
100-I Rotation
*special geometry math
1500
100-H Battleship
*special dfs and similar implementation
2100
100-G Name the album
*special data structures implementation
1800
100-F Polynom
*special implementation
1800