| 883-G |
Orientation of Edges
|
dfs and similar
graphs
|
1900
|
| 883-F |
Lost in Transliteration
|
implementation
|
1300
|
| 883-E |
Field of Wonders
|
implementation
strings
|
1500
|
| 883-D |
Packmen Strike Back
|
binary search
dp
math
|
2500
|
| 883-C |
Downloading B++
|
binary search
implementation
|
2300
|
| 883-B |
Berland Army
|
constructive algorithms
graphs
greedy
|
2600
|
| 883-A |
Automatic Door
|
implementation
|
2200
|
| 879-B |
Table Tennis
|
data structures
implementation
|
1200
|
| 879-A |
Borya's Diagnosis
|
implementation
|
900
|
| 878-E |
Numbers on the blackboard
|
combinatorics
dp
|
3300
|
| 878-D |
Magic Breeding
|
bitmasks
|
2900
|
| 878-C |
Tournament
|
data structures
graphs
|
2700
|
| 878-B |
Teams Formation
|
data structures
implementation
|
2300
|
| 878-A |
Short Program
|
bitmasks
constructive algorithms
|
1600
|
| 877-F |
Ann and Books
|
data structures
flows
hashing
|
2300
|
| 877-E |
Danil and a Part-time Job
|
bitmasks
data structures
trees
|
2000
|
| 877-D |
Olya and Energy Drinks
|
data structures
dfs and similar
graphs
+1
|
2100
|
| 877-C |
Slava and tanks
|
constructive algorithms
|
1600
|
| 877-B |
Nikita and string
|
brute force
dp
|
1500
|
| 877-A |
Alex and broken contest
|
implementation
strings
|
1100
|
| 876-B |
Divisiblity of Differences
|
implementation
math
number theory
|
1300
|
| 876-A |
Trip For Meal
|
math
|
900
|
| 875-F |
Royal Questions
|
dsu
graphs
greedy
|
2500
|
| 875-E |
Delivery Club
|
binary search
data structures
dp
|
2600
|
| 875-D |
High Cry
|
binary search
bitmasks
combinatorics
+2
|
2200
|
| 875-C |
National Property
|
2-sat
dfs and similar
graphs
+1
|
2100
|
| 875-B |
Sorting the Coins
|
dsu
implementation
sortings
+1
|
1500
|
| 875-A |
Classroom Watch
|
brute force
math
|
1200
|
| 873-F |
Forbidden Indices
|
dsu
string suffix structures
strings
|
2400
|
| 873-E |
Awards For Contestants
|
brute force
data structures
dp
|
2300
|
| 873-D |
Merge Sort
|
constructive algorithms
divide and conquer
|
1800
|
| 873-C |
Strange Game On Matrix
|
greedy
two pointers
|
1600
|
| 873-B |
Balanced Substring
|
dp
implementation
|
1500
|
| 873-A |
Chores
|
implementation
|
800
|
| 871-E |
Restore the Tree
|
graphs
greedy
trees
|
2900
|
| 870-F |
Paths
|
data structures
number theory
|
2700
|
| 870-E |
Points, Lines and Ready-made Titles
|
dfs and similar
dsu
graphs
+1
|
2300
|
| 870-D |
Something with XOR Queries
|
brute force
interactive
probabilities
|
2000
|
| 870-C |
Maximum splitting
|
dp
greedy
math
+1
|
1300
|
| 870-B |
Maximum of Maximums of Minimums
|
greedy
|
1200
|
| 870-A |
Search for Pretty Integers
|
brute force
implementation
|
900
|
| 869-E |
The Untended Antiquity
|
data structures
hashing
|
2400
|
| 869-D |
The Overdosing Ubiquity
|
brute force
dfs and similar
graphs
|
2800
|
| 869-C |
The Intriguing Obsession
|
combinatorics
dp
math
|
1800
|
| 869-B |
The Eternal Immortality
|
math
|
1100
|
| 869-A |
The Artful Expedient
|
brute force
implementation
|
1100
|
| 868-G |
El Toll Caves
|
math
|
3300
|
| 868-F |
Yet Another Minimization Problem
|
divide and conquer
dp
|
2500
|
| 868-E |
Policeman and a Tree
|
dp
graphs
trees
|
2700
|
| 868-D |
Huge Strings
|
bitmasks
brute force
dp
+2
|
2200
|