| 688-A |
Opponents
|
implementation
|
800
|
| 687-E |
TOF
|
dfs and similar
graphs
|
2900
|
| 687-D |
Dividing Kingdom II
|
brute force
data structures
dsu
+2
|
2500
|
| 687-C |
The Values You Can Make
|
dp
|
1900
|
| 687-B |
Remainders Game
|
chinese remainder theorem
math
number theory
|
1800
|
| 687-A |
NP-Hard Problem
|
dfs and similar
graphs
|
1500
|
| 686-B |
Little Robber Girl's Zoo
|
constructive algorithms
implementation
sortings
|
1100
|
| 686-A |
Free Ice Cream
|
constructive algorithms
implementation
|
800
|
| 685-E |
Travelling Through the Snow Queen's Kingdom
|
bitmasks
brute force
divide and conquer
+1
|
2800
|
| 685-D |
Kay and Eternity
|
brute force
implementation
sortings
|
2600
|
| 685-C |
Optimal Point
|
binary search
math
|
2900
|
| 685-B |
Kay and Snowflake
|
data structures
dfs and similar
dp
+1
|
1900
|
| 685-A |
Robbers' watch
|
brute force
combinatorics
dp
+1
|
1700
|
| 683-J |
The Hero with Bombs
|
*special
|
3000
|
| 683-I |
Loader
|
*special
graphs
|
2500
|
| 683-H |
Exchange of Books
|
*special
|
1900
|
| 683-G |
The Fraction
|
*special
|
1900
|
| 683-F |
Reformat the String
|
*special
|
1800
|
| 683-E |
Hammer throwing
|
*special
|
1800
|
| 683-D |
Chocolate Bar
|
*special
math
|
1400
|
| 683-C |
Symmetric Difference
|
*special
|
1600
|
| 683-B |
The Teacher of Physical Education
|
*special
|
1600
|
| 683-A |
The Check of the Point
|
*special
geometry
|
1200
|
| 682-E |
Alyona and Triangles
|
geometry
two pointers
|
2600
|
| 682-D |
Alyona and Strings
|
dp
strings
|
1900
|
| 682-C |
Alyona and the Tree
|
dfs and similar
dp
graphs
+1
|
1600
|
| 682-B |
Alyona and Mex
|
sortings
|
1200
|
| 682-A |
Alyona and Numbers
|
constructive algorithms
math
number theory
|
1100
|
| 681-E |
Runaway to a Shadow
|
geometry
sortings
|
2500
|
| 681-D |
Gifts by the List
|
constructive algorithms
dfs and similar
graphs
+1
|
2000
|
| 681-C |
Heap Operations
|
constructive algorithms
data structures
greedy
|
1600
|
| 681-B |
Economy Game
|
brute force
|
1300
|
| 681-A |
A Good Contest
|
implementation
|
800
|
| 680-B |
Bear and Finding Criminals
|
constructive algorithms
implementation
|
1000
|
| 680-A |
Bear and Five Cards
|
constructive algorithms
implementation
|
800
|
| 679-E |
Bear and Bad Powers of 42
|
data structures
|
3100
|
| 679-D |
Bear and Chase
|
brute force
dfs and similar
graphs
+3
|
2900
|
| 679-C |
Bear and Square Grid
|
dfs and similar
dsu
implementation
|
2400
|
| 679-B |
Bear and Tower of Cubes
|
binary search
dp
greedy
|
2200
|
| 679-A |
Bear and Prime 100
|
constructive algorithms
interactive
math
|
1400
|
| 678-F |
Lena and Queries
|
data structures
divide and conquer
geometry
|
2500
|
| 678-E |
Another Sith Tournament
|
bitmasks
dp
math
+1
|
2200
|
| 678-D |
Iterated Linear Function
|
math
number theory
|
1700
|
| 678-C |
Joty and Chocolate
|
implementation
math
number theory
|
1600
|
| 678-B |
The Same Calendar
|
implementation
|
1600
|
| 678-A |
Johny Likes Numbers
|
implementation
math
|
800
|
| 677-E |
Vanya and Balloons
|
binary search
brute force
dp
+1
|
2300
|
| 677-D |
Vanya and Treasure
|
data structures
dp
graphs
+1
|
2300
|
| 677-C |
Vanya and Label
|
bitmasks
combinatorics
implementation
+1
|
1500
|
| 677-B |
Vanya and Food Processor
|
implementation
math
|
1400
|