| 1271-B |
Blocks
|
greedy
math
|
1300
|
| 1271-A |
Suits
|
brute force
greedy
math
|
800
|
| 1270-I |
Xor on Figures
|
constructive algorithms
fft
math
|
3500
|
| 1270-H |
Number of Components
|
data structures
|
3300
|
| 1270-G |
Subset with Zero Sum
|
constructive algorithms
dfs and similar
graphs
+1
|
2700
|
| 1270-F |
Awesome Substrings
|
math
strings
|
2600
|
| 1270-E |
Divide Points
|
constructive algorithms
geometry
math
|
2300
|
| 1270-D |
Strange Device
|
constructive algorithms
interactive
math
+1
|
1900
|
| 1270-C |
Make Good
|
bitmasks
constructive algorithms
math
|
1400
|
| 1270-B |
Interesting Subarray
|
constructive algorithms
greedy
math
|
1200
|
| 1270-A |
Card Game
|
games
greedy
math
|
800
|
| 1269-B |
Modulo Equality
|
brute force
sortings
|
1500
|
| 1269-A |
Equation
|
brute force
math
|
800
|
| 1268-E |
Happy Cactus
|
dp
|
3400
|
| 1268-D |
Invertation in Tournament
|
brute force
divide and conquer
graphs
+1
|
3200
|
| 1268-C |
K Integers
|
binary search
data structures
|
2300
|
| 1268-B |
Domino for Young
|
dp
greedy
math
|
2000
|
| 1268-A |
Long Beautiful Integer
|
constructive algorithms
greedy
implementation
+1
|
1700
|
| 1267-L |
Lexicography
|
constructive algorithms
strings
|
1800
|
| 1267-K |
Key Storage
|
combinatorics
math
|
2100
|
| 1267-J |
Just Arrange the Icons
|
greedy
implementation
math
|
1800
|
| 1267-I |
Intriguing Selection
|
brute force
constructive algorithms
implementation
+2
|
2600
|
| 1267-H |
Help BerLine
|
constructive algorithms
|
3200
|
| 1267-G |
Game Relics
|
math
probabilities
|
3000
|
| 1267-F |
Foolprüf Security
|
graphs
|
2600
|
| 1267-E |
Elections
|
greedy
|
1700
|
| 1267-D |
DevOps Best Practices
|
constructive algorithms
|
2800
|
| 1267-C |
Cactus Revenge
|
constructive algorithms
|
3500
|
| 1267-B |
Balls of Buma
|
|
900
|
| 1267-A |
Apprentice Learning Trajectory
|
|
2400
|
| 1266-H |
Red-Blue Graph
|
dp
graphs
math
+2
|
3400
|
| 1266-G |
Permutation Concatenation
|
string suffix structures
|
3300
|
| 1266-F |
Almost Same Distance
|
dfs and similar
graphs
|
2900
|
| 1266-E |
Spaceship Solitaire
|
data structures
greedy
implementation
|
2100
|
| 1266-D |
Decreasing Debts
|
constructive algorithms
data structures
graphs
+4
|
2000
|
| 1266-C |
Diverse Matrix
|
constructive algorithms
greedy
math
+1
|
1400
|
| 1266-B |
Dice Tower
|
constructive algorithms
math
|
1000
|
| 1266-A |
Competitive Programmer
|
chinese remainder theorem
math
|
1000
|
| 1265-E |
Beautiful Mirrors
|
data structures
dp
math
+1
|
2100
|
| 1265-B |
Beautiful Numbers
|
data structures
implementation
math
+1
|
1300
|
| 1265-A |
Beautiful String
|
constructive algorithms
greedy
|
1000
|
| 1264-F |
Beautiful Fibonacci Problem
|
constructive algorithms
number theory
|
3500
|
| 1264-E |
Beautiful League
|
constructive algorithms
flows
graph matchings
|
2700
|
| 1264-D2 |
Beautiful Bracket Sequence (hard version)
|
combinatorics
probabilities
|
2900
|
| 1264-D1 |
Beautiful Bracket Sequence (easy version)
|
combinatorics
dp
probabilities
|
2600
|
| 1264-C |
Beautiful Mirrors with queries
|
data structures
probabilities
|
2400
|
| 1264-B |
Beautiful Sequence
|
brute force
constructive algorithms
greedy
|
1900
|
| 1264-A |
Beautiful Regional Contest
|
greedy
implementation
|
1500
|
| 1263-F |
Economic Difficulties
|
data structures
dfs and similar
dp
+3
|
2400
|
| 1263-E |
Editor
|
data structures
implementation
|
2100
|