| 1055-F |
Tree and XOR
|
strings
trees
|
2900
|
| 1055-E |
Segments on the Line
|
binary search
dp
|
2500
|
| 1055-D |
Refactoring
|
greedy
implementation
strings
|
2400
|
| 1055-C |
Lucky Days
|
math
number theory
|
1900
|
| 1055-B |
Alice and Hairdresser
|
dsu
implementation
|
1300
|
| 1055-A |
Metro
|
graphs
|
900
|
| 1054-H |
Epic Convolution
|
chinese remainder theorem
fft
math
+1
|
3500
|
| 1054-G |
New Road Network
|
constructive algorithms
greedy
math
|
3300
|
| 1054-F |
Electric Scheme
|
flows
graph matchings
|
2700
|
| 1054-E |
Chips Puzzle
|
constructive algorithms
implementation
math
|
2400
|
| 1054-D |
Changing Array
|
greedy
implementation
|
1900
|
| 1054-C |
Candies Distribution
|
constructive algorithms
implementation
|
1500
|
| 1054-B |
Appending Mex
|
implementation
|
1000
|
| 1054-A |
Elevator or Stairs?
|
implementation
|
800
|
| 1053-E |
Euler tour
|
constructive algorithms
trees
|
3500
|
| 1051-G |
Distinctification
|
data structures
dsu
greedy
|
2900
|
| 1051-F |
The Shortest Statement
|
graphs
shortest paths
trees
|
2400
|
| 1051-E |
Vasya and Big Integers
|
binary search
data structures
dp
+2
|
2600
|
| 1051-D |
Bicolorings
|
bitmasks
dp
|
1700
|
| 1051-C |
Vasya and Multisets
|
brute force
dp
greedy
+2
|
1500
|
| 1051-B |
Relatively Prime Pairs
|
greedy
math
number theory
|
1000
|
| 1051-A |
Vasya And Password
|
greedy
implementation
strings
|
1200
|
| 1047-B |
Cover Points
|
geometry
math
|
900
|
| 1047-A |
Little C Loves 3 I
|
math
|
800
|
| 1046-I |
Say Hello
|
geometry
|
2300
|
| 1046-F |
Splitting money
|
implementation
|
1400
|
| 1046-C |
Space Formula
|
greedy
|
1400
|
| 1045-J |
Moonwalk challenge
|
data structures
strings
trees
|
2600
|
| 1045-I |
Palindrome Pairs
|
hashing
strings
|
1600
|
| 1045-H |
Self-exploration
|
math
|
2400
|
| 1045-G |
AI robots
|
data structures
|
2200
|
| 1045-F |
Shady Lady
|
geometry
math
|
3400
|
| 1045-E |
Ancient civilizations
|
constructive algorithms
geometry
|
3200
|
| 1045-D |
Interstellar battle
|
math
probabilities
trees
|
2200
|
| 1045-C |
Hyperspace Highways
|
dfs and similar
graphs
trees
|
2300
|
| 1045-B |
Space Isaac
|
hashing
number theory
|
2400
|
| 1045-A |
Last chance
|
data structures
flows
graph matchings
+2
|
2500
|
| 1044-F |
DFS
|
data structures
|
2700
|
| 1044-E |
Grid Sort
|
implementation
|
3100
|
| 1044-D |
Deduction Queries
|
data structures
dsu
|
2400
|
| 1044-C |
Optimal Polygon Perimeter
|
dp
geometry
|
2100
|
| 1044-B |
Intersecting Subtrees
|
dfs and similar
interactive
trees
|
1900
|
| 1044-A |
The Tower is Going Home
|
binary search
two pointers
|
1700
|
| 1043-G |
Speckled Band
|
data structures
divide and conquer
hashing
+2
|
3500
|
| 1043-F |
Make It One
|
bitmasks
combinatorics
dp
+3
|
2500
|
| 1043-E |
Train Hard, Win Easy
|
constructive algorithms
greedy
math
+1
|
1900
|
| 1043-D |
Mysterious Crime
|
brute force
combinatorics
math
+2
|
1700
|
| 1043-C |
Smallest Word
|
constructive algorithms
greedy
implementation
|
1500
|
| 1043-B |
Lost Array
|
implementation
|
1200
|
| 1043-A |
Elections
|
implementation
math
|
800
|