| 578-C |
Weakness and Poorness
|
ternary search
|
2000
|
| 578-B |
"Or" Game
|
brute force
greedy
|
1700
|
| 578-A |
A Problem about Polyline
|
geometry
math
|
1700
|
| 577-B |
Modulo Sum
|
combinatorics
data structures
dp
+1
|
1900
|
| 577-A |
Multiplication Table
|
implementation
number theory
|
1000
|
| 576-E |
Painting Edges
|
binary search
data structures
|
3300
|
| 576-D |
Flights for Regular Customers
|
dp
matrices
|
2700
|
| 576-C |
Points on Plane
|
constructive algorithms
divide and conquer
geometry
+2
|
2100
|
| 576-B |
Invariance of Tree
|
constructive algorithms
dfs and similar
greedy
+1
|
2100
|
| 576-A |
Vasya and Petya's Game
|
math
number theory
|
1500
|
| 575-I |
Robots protection
|
data structures
|
2800
|
| 575-H |
Bots
|
combinatorics
dp
math
+1
|
1800
|
| 575-G |
Run for beer
|
dfs and similar
shortest paths
|
2200
|
| 575-F |
Bulbo
|
dp
greedy
|
2100
|
| 575-E |
Spectator Riots
|
geometry
|
2800
|
| 575-D |
Tablecity
|
constructive algorithms
implementation
|
1700
|
| 575-C |
Party
|
bitmasks
brute force
graph matchings
|
2700
|
| 575-B |
Bribes
|
dfs and similar
graphs
trees
|
2200
|
| 575-A |
Fibonotci
|
data structures
math
matrices
|
2700
|
| 574-B |
Bear and Three Musketeers
|
brute force
dfs and similar
graphs
+1
|
1500
|
| 574-A |
Bear and Elections
|
greedy
implementation
|
1200
|
| 573-E |
Bear and Bowling
|
data structures
greedy
|
3200
|
| 573-D |
Bear and Cavalry
|
data structures
divide and conquer
dp
|
3000
|
| 573-C |
Bear and Drawing
|
constructive algorithms
dfs and similar
trees
|
2300
|
| 573-B |
Bear and Blocks
|
binary search
data structures
dp
+1
|
1600
|
| 573-A |
Bear and Poker
|
implementation
math
number theory
|
1300
|
| 572-B |
Order Book
|
data structures
greedy
implementation
+1
|
1300
|
| 572-A |
Arrays
|
sortings
|
900
|
| 571-E |
Geometric Progressions
|
math
|
3200
|
| 571-D |
Campus
|
binary search
data structures
dsu
+1
|
3100
|
| 571-C |
CNF 2
|
constructive algorithms
dfs and similar
graphs
+1
|
2500
|
| 571-B |
Minimization
|
dp
greedy
sortings
|
2000
|
| 571-A |
Lengthening Sticks
|
combinatorics
implementation
math
|
2100
|
| 570-E |
Pig and Palindromes
|
combinatorics
dp
|
2300
|
| 570-D |
Tree Requests
|
binary search
bitmasks
constructive algorithms
+3
|
2200
|
| 570-C |
Replacement
|
constructive algorithms
data structures
implementation
|
1600
|
| 570-B |
Simple Game
|
constructive algorithms
games
greedy
+2
|
1300
|
| 570-A |
Elections
|
implementation
|
1100
|
| 569-B |
Inventory
|
greedy
math
|
1200
|
| 569-A |
Music
|
implementation
math
|
1500
|
| 568-E |
Longest Increasing Subsequence
|
data structures
dp
|
3000
|
| 568-D |
Sign Posts
|
brute force
geometry
math
|
2800
|
| 568-C |
New Language
|
2-sat
greedy
|
2600
|
| 568-B |
Symmetric and Transitive
|
combinatorics
dp
math
|
1900
|
| 568-A |
Primes or Palindromes?
|
brute force
implementation
math
+1
|
1600
|
| 567-F |
Mausoleum
|
dp
|
2400
|
| 567-E |
President and Roads
|
dfs and similar
graphs
hashing
+1
|
2200
|
| 567-D |
One-Dimensional Battle Ships
|
binary search
data structures
greedy
+1
|
1700
|
| 567-C |
Geometric Progression
|
binary search
data structures
dp
|
1700
|
| 567-B |
Berland National Library
|
implementation
|
1300
|