| 58-A |
Chat room
|
greedy
strings
|
1000
|
| 57-E |
Chess
|
math
shortest paths
|
3000
|
| 57-D |
Journey
|
dp
math
|
2500
|
| 57-C |
Array
|
combinatorics
math
|
1900
|
| 57-B |
Martian Architecture
|
implementation
|
1600
|
| 57-A |
Square Earth?
|
dfs and similar
greedy
implementation
|
1300
|
| 56-E |
Domino Principle
|
binary search
data structures
sortings
|
2200
|
| 56-D |
Changing a String
|
dp
|
2100
|
| 56-C |
Corporation Mail
|
data structures
expression parsing
implementation
|
1700
|
| 56-B |
Spoilt Permutation
|
implementation
|
1300
|
| 56-A |
Bar
|
implementation
|
1000
|
| 55-E |
Very simple problem
|
geometry
two pointers
|
2500
|
| 55-D |
Beautiful numbers
|
dp
number theory
|
2500
|
| 55-C |
Pie or die
|
games
|
1900
|
| 55-B |
Smallest number
|
brute force
|
1600
|
| 55-A |
Flea travel
|
implementation
math
|
1200
|
| 54-E |
Vacuum Сleaner
|
geometry
|
2700
|
| 54-D |
Writing a Song
|
brute force
dp
strings
|
2100
|
| 54-C |
First Digit Law
|
dp
math
probabilities
|
2000
|
| 54-B |
Cutting Jigsaw Puzzle
|
hashing
implementation
|
1800
|
| 54-A |
Presents
|
implementation
|
1300
|
| 53-E |
Dead Ends
|
bitmasks
dp
|
2500
|
| 53-D |
Physical Education
|
sortings
|
1500
|
| 53-C |
Little Frog
|
constructive algorithms
|
1200
|
| 53-B |
Blog Photo
|
binary search
implementation
|
1700
|
| 53-A |
Autocomplete
|
implementation
|
1100
|
| 52-C |
Circular RMQ
|
data structures
|
2200
|
| 52-B |
Right Triangles
|
combinatorics
|
1600
|
| 52-A |
123-sequence
|
implementation
|
900
|
| 51-F |
Caterpillar
|
dfs and similar
dp
graphs
+1
|
2800
|
| 51-E |
Pentagon
|
combinatorics
graphs
matrices
|
2400
|
| 51-D |
Geometrical problem
|
implementation
|
2200
|
| 51-C |
Three Base Stations
|
binary search
greedy
|
1800
|
| 51-B |
bHTML Tables Analisys
|
expression parsing
|
1700
|
| 51-A |
Cheaterius's Problem
|
implementation
|
1300
|
| 50-E |
Square Equation Roots
|
math
|
2300
|
| 50-D |
Bombing
|
binary search
dp
probabilities
|
2100
|
| 50-C |
Happy Farm 5
|
geometry
|
2000
|
| 50-B |
Choosing Symbol Pairs
|
strings
|
1500
|
| 50-A |
Domino piling
|
greedy
math
|
800
|
| 49-E |
Common ancestor
|
dp
|
2300
|
| 49-D |
Game
|
brute force
dp
implementation
|
1800
|
| 49-C |
Disposition
|
constructive algorithms
math
|
1700
|
| 49-B |
Sum
|
math
|
1500
|
| 49-A |
Sleuth
|
implementation
|
800
|
| 48-H |
Black and White
|
constructive algorithms
|
2800
|
| 48-G |
Galaxy Union
|
dp
trees
two pointers
|
2700
|
| 48-F |
Snow sellers
|
greedy
sortings
|
2800
|
| 48-E |
Ivan the Fool VS Gorynych the Dragon
|
dp
games
graphs
|
2100
|
| 48-D |
Permutations
|
greedy
|
1500
|