| 627-A |
XOR Equation
|
dp
math
|
1700
|
| 626-G |
Raffles
|
data structures
dp
greedy
+1
|
3100
|
| 626-F |
Group Projects
|
dp
|
2400
|
| 626-E |
Simple Skewness
|
binary search
math
ternary search
|
2400
|
| 626-D |
Jerry's Protest
|
brute force
combinatorics
dp
+1
|
1800
|
| 626-C |
Block Towers
|
brute force
greedy
math
+1
|
1600
|
| 626-B |
Cards
|
constructive algorithms
dp
math
|
1300
|
| 626-A |
Robot Sequence
|
brute force
implementation
|
1000
|
| 625-E |
Frog Fights
|
data structures
greedy
|
2800
|
| 625-D |
Finals in arithmetic
|
constructive algorithms
implementation
math
|
2400
|
| 625-C |
K-special Tables
|
constructive algorithms
implementation
|
1300
|
| 625-B |
War of the Corporations
|
constructive algorithms
greedy
strings
|
1200
|
| 625-A |
Guest From the Past
|
implementation
math
|
1700
|
| 624-B |
Making a String
|
greedy
sortings
|
1100
|
| 624-A |
Save Luke
|
math
|
800
|
| 623-E |
Transforming Sequence
|
combinatorics
dp
fft
+1
|
3300
|
| 623-D |
Birthday
|
greedy
math
probabilities
|
2700
|
| 623-C |
Electric Charges
|
binary search
dp
|
2900
|
| 623-B |
Array GCD
|
dp
greedy
number theory
|
2300
|
| 623-A |
Graph and String
|
constructive algorithms
graphs
|
1800
|
| 622-F |
The Sum of the k-th Powers
|
math
|
2600
|
| 622-E |
Ants in Leaves
|
dfs and similar
greedy
sortings
+1
|
2200
|
| 622-D |
Optimal Number Permutation
|
constructive algorithms
|
1900
|
| 622-C |
Not Equal on a Segment
|
data structures
implementation
|
1700
|
| 622-B |
The Time
|
implementation
|
900
|
| 622-A |
Infinite Sequence
|
implementation
math
|
1000
|
| 621-E |
Wet Shark and Blocks
|
dp
matrices
|
2000
|
| 621-D |
Rat Kwesh and Cheese
|
brute force
constructive algorithms
math
|
2400
|
| 621-C |
Wet Shark and Flowers
|
combinatorics
math
number theory
+1
|
1700
|
| 621-B |
Wet Shark and Bishops
|
combinatorics
implementation
|
1300
|
| 621-A |
Wet Shark and Odd and Even
|
implementation
|
900
|
| 620-F |
Xors on Segments
|
data structures
strings
trees
|
2800
|
| 620-E |
New Year Tree
|
bitmasks
data structures
trees
|
2100
|
| 620-D |
Professor GukiZ and Two Arrays
|
binary search
two pointers
|
2200
|
| 620-C |
Pearls in a Row
|
greedy
|
1500
|
| 620-B |
Grandfather Dovlet’s calculator
|
implementation
|
1000
|
| 620-A |
Professor GukiZ's Robot
|
implementation
math
|
800
|
| 618-G |
Combining Slimes
|
dp
math
matrices
+1
|
3300
|
| 618-F |
Double Knapsack
|
constructive algorithms
two pointers
|
3000
|
| 618-E |
Robot Arm
|
data structures
geometry
|
2500
|
| 618-D |
Hamiltonian Spanning Tree
|
dfs and similar
dp
graph matchings
+2
|
2200
|
| 618-C |
Constellation
|
geometry
implementation
|
1600
|
| 618-B |
Guess the Permutation
|
constructive algorithms
|
1100
|
| 618-A |
Slime Combining
|
implementation
|
800
|
| 617-E |
XOR and Favorite Number
|
data structures
|
2200
|
| 617-D |
Polyline
|
constructive algorithms
implementation
|
1700
|
| 617-C |
Watering Flowers
|
implementation
|
1600
|
| 617-B |
Chocolate
|
combinatorics
|
1300
|
| 617-A |
Elephant
|
math
|
800
|
| 616-F |
Expensive Strings
|
data structures
sortings
string suffix structures
+1
|
2700
|