| 1528-D |
It's a bird! No, it's a plane! No, it's AaParsa!
|
constructive algorithms
graphs
shortest paths
|
2500
|
| 1528-C |
Trees of Tranquillity
|
data structures
dfs and similar
greedy
+1
|
2300
|
| 1528-B |
Kavi on Pairing Duty
|
combinatorics
dp
math
|
1700
|
| 1528-A |
Parsa's Humongous Tree
|
dfs and similar
divide and conquer
dp
+2
|
1600
|
| 1527-E |
Partition Game
|
binary search
data structures
divide and conquer
+1
|
2500
|
| 1527-D |
MEX Tree
|
combinatorics
dfs and similar
implementation
+2
|
2400
|
| 1527-C |
Sequence Pair Weight
|
hashing
implementation
math
|
1600
|
| 1527-B2 |
Palindrome Game (hard version)
|
constructive algorithms
games
|
1900
|
| 1527-B1 |
Palindrome Game (easy version)
|
constructive algorithms
games
|
1200
|
| 1527-A |
And Then There Were K
|
bitmasks
|
800
|
| 1526-F |
Median Queries
|
constructive algorithms
interactive
probabilities
|
3000
|
| 1526-E |
Oolimry and Suffix Array
|
combinatorics
constructive algorithms
math
|
2400
|
| 1526-D |
Kill Anton
|
brute force
constructive algorithms
data structures
+2
|
2200
|
| 1526-C2 |
Potions (Hard Version)
|
data structures
greedy
|
1600
|
| 1526-C1 |
Potions (Easy Version)
|
brute force
data structures
dp
+1
|
1500
|
| 1526-B |
I Hate 1111
|
dp
math
number theory
|
1400
|
| 1526-A |
Mean Inequality
|
constructive algorithms
sortings
|
800
|
| 1525-F |
Goblins And Gnomes
|
brute force
dp
flows
+1
|
2800
|
| 1525-E |
Assimilation IV
|
combinatorics
dp
math
+2
|
2100
|
| 1525-D |
Armchairs
|
dp
flows
graph matchings
+1
|
1800
|
| 1525-C |
Robot Collisions
|
data structures
greedy
implementation
+1
|
2000
|
| 1525-B |
Permutation Sort
|
constructive algorithms
greedy
|
900
|
| 1525-A |
Potion-making
|
math
number theory
|
800
|
| 1523-H |
Hopping Around the Array
|
data structures
dp
|
3500
|
| 1523-G |
Try Booking
|
data structures
divide and conquer
|
3200
|
| 1523-F |
Favorite Game
|
bitmasks
dp
|
3300
|
| 1523-E |
Crypto Lights
|
combinatorics
dp
math
+1
|
2600
|
| 1523-D |
Love-Hate
|
bitmasks
brute force
dp
+1
|
2400
|
| 1523-C |
Compression and Expansion
|
brute force
data structures
greedy
+2
|
1600
|
| 1523-B |
Lord of the Values
|
constructive algorithms
|
1100
|
| 1523-A |
Game of Life
|
implementation
|
800
|
| 1521-E |
Nastia and a Beautiful Matrix
|
binary search
constructive algorithms
dp
+1
|
2700
|
| 1521-D |
Nastia Plays with a Tree
|
constructive algorithms
data structures
dfs and similar
+5
|
2500
|
| 1521-C |
Nastia and a Hidden Permutation
|
constructive algorithms
interactive
|
2000
|
| 1521-B |
Nastia and a Good Array
|
constructive algorithms
math
number theory
|
1300
|
| 1521-A |
Nastia and Nearly Good Numbers
|
constructive algorithms
math
number theory
|
1000
|
| 1520-G |
To Go Or Not To Go?
|
brute force
dfs and similar
graphs
+3
|
2200
|
| 1520-F2 |
Guess the K-th Zero (Hard version)
|
binary search
constructive algorithms
data structures
+1
|
2200
|
| 1520-F1 |
Guess the K-th Zero (Easy version)
|
binary search
interactive
|
1600
|
| 1520-E |
Arranging The Sheep
|
greedy
math
|
1400
|
| 1520-D |
Same Differences
|
data structures
hashing
math
|
1200
|
| 1520-C |
Not Adjacent Matrix
|
constructive algorithms
|
1000
|
| 1520-B |
Ordinary Numbers
|
brute force
math
number theory
|
800
|
| 1520-A |
Do Not Be Distracted!
|
brute force
implementation
|
800
|
| 1519-F |
Chests and Keys
|
bitmasks
brute force
dfs and similar
+2
|
3200
|
| 1519-E |
Off by One
|
constructive algorithms
dfs and similar
geometry
+3
|
2700
|
| 1519-D |
Maximum Sum of Products
|
brute force
dp
implementation
+2
|
1600
|
| 1519-C |
Berland Regional
|
brute force
data structures
greedy
+2
|
1400
|
| 1519-B |
The Cake Is a Lie
|
dp
math
|
800
|
| 1519-A |
Red and Blue Beans
|
math
|
800
|