| 1934-D1 |
XOR Break --- Solo Version
|
bitmasks
constructive algorithms
greedy
|
2100
|
| 1934-C |
Find a Mine
|
binary search
constructive algorithms
geometry
+3
|
1700
|
| 1934-B |
Yet Another Coin Problem
|
brute force
dp
greedy
+1
|
1200
|
| 1934-A |
Too Min Too Max
|
greedy
math
|
800
|
| 1933-G |
Turtle Magic: Royal Turtle Shell Pattern
|
bitmasks
brute force
combinatorics
+3
|
2300
|
| 1933-F |
Turtle Mission: Robot and the Earthquake
|
dfs and similar
dp
graphs
+1
|
2100
|
| 1933-E |
Turtle vs. Rabbit Race: Optimal Trainings
|
binary search
implementation
math
+1
|
1500
|
| 1933-D |
Turtle Tenacity: Continual Mods
|
constructive algorithms
greedy
math
+2
|
1200
|
| 1933-C |
Turtle Fingers: Count the Values of k
|
brute force
implementation
math
+1
|
1100
|
| 1933-B |
Turtle Math: Fast Three Task
|
implementation
math
number theory
|
800
|
| 1933-A |
Turtle Puzzle: Rearrange and Negate
|
greedy
math
sortings
|
800
|
| 1932-G |
Moving Platforms
|
graphs
math
number theory
+1
|
2300
|
| 1932-F |
Feed Cats
|
data structures
dp
sortings
|
1900
|
| 1932-E |
Final Countdown
|
implementation
math
number theory
|
1600
|
| 1932-D |
Card Game
|
greedy
implementation
|
1400
|
| 1932-C |
LR-remainders
|
brute force
data structures
implementation
+2
|
1400
|
| 1932-B |
Chaya Calendar
|
number theory
|
1100
|
| 1932-A |
Thorns and Coins
|
dp
greedy
implementation
|
800
|
| 1931-G |
One-Dimensional Puzzle
|
combinatorics
math
number theory
|
2000
|
| 1931-F |
Chat Screenshots
|
combinatorics
dfs and similar
graphs
|
1700
|
| 1931-E |
Anna and the Valentine's Day Gift
|
games
greedy
math
+1
|
1400
|
| 1931-D |
Divisible Pairs
|
combinatorics
math
number theory
|
1300
|
| 1931-C |
Make Equal Again
|
brute force
greedy
math
|
1000
|
| 1931-B |
Make Equal
|
greedy
|
800
|
| 1931-A |
Recovering a Small String
|
brute force
strings
|
800
|
| 1930-I |
Counting Is Fun
|
combinatorics
|
3500
|
| 1930-H |
Interactive Mex Tree
|
constructive algorithms
dfs and similar
interactive
+1
|
3300
|
| 1930-G |
Prefix Max Set Counting
|
data structures
dp
trees
|
3100
|
| 1930-F |
Maximize the Difference
|
bitmasks
brute force
dfs and similar
|
2700
|
| 1930-E |
2..3...4.... Wonderful! Wonderful!
|
combinatorics
dp
math
|
2400
|
| 1930-D2 |
Sum over all Substrings (Hard Version)
|
bitmasks
divide and conquer
dp
+4
|
2100
|
| 1930-D1 |
Sum over all Substrings (Easy Version)
|
brute force
dp
greedy
+1
|
1800
|
| 1930-C |
Lexicographically Largest
|
binary search
constructive algorithms
data structures
+2
|
1700
|
| 1930-B |
Permutation Printing
|
brute force
constructive algorithms
math
|
1000
|
| 1930-A |
Maximise The Score
|
greedy
sortings
|
800
|
| 1929-F |
Sasha and the Wedding Binary Search Tree
|
brute force
combinatorics
data structures
+3
|
2300
|
| 1929-E |
Sasha and the Happy Tree Cutting
|
bitmasks
brute force
dfs and similar
+5
|
2300
|
| 1929-D |
Sasha and a Walk in the City
|
combinatorics
dp
math
+1
|
1900
|
| 1929-C |
Sasha and the Casino
|
binary search
brute force
constructive algorithms
+3
|
1400
|
| 1929-B |
Sasha and the Drawing
|
constructive algorithms
greedy
math
|
800
|
| 1929-A |
Sasha and the Beautiful Array
|
constructive algorithms
greedy
math
+1
|
800
|
| 1928-F |
Digital Patterns
|
combinatorics
data structures
implementation
+1
|
2900
|
| 1928-E |
Modular Sequence
|
brute force
constructive algorithms
dp
+4
|
2300
|
| 1928-D |
Lonely Mountain Dungeons
|
brute force
data structures
greedy
+2
|
1900
|
| 1928-C |
Physical Education Lesson
|
brute force
math
number theory
|
1600
|
| 1928-B |
Equalize
|
binary search
greedy
sortings
+1
|
1200
|
| 1928-A |
Rectangle Cutting
|
geometry
math
|
800
|
| 1927-G |
Paint Charges
|
data structures
dp
greedy
+1
|
2300
|
| 1927-F |
Microcycle
|
data structures
dfs and similar
dsu
+5
|
1900
|
| 1927-E |
Klever Permutation
|
constructive algorithms
math
two pointers
|
1400
|