Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
1077C
Good Array
1300
x15170
1077B
Disturbed People
greedy
1000
x18223
1077A
Frog Jumping
math
800
x28972
1076G
Array Game
data structures
,
games
3000
x434
1076F
Summer Practice Report
dp
,
greedy
2500
x618
1076E
Vasya and a Tree
data structures
,
trees
1900
x3596
1076D
Edge Deletion
graphs
,
greedy
,
shortest paths
1800
x4885
1076C
Meme Problem
binary search
,
math
1300
x12039
1076B
Divisor Subtraction
implementation
,
math
,
number theory
1200
x12500
1076A
Minimizing the String
greedy
,
strings
1200
x12810
1075B
Taxi drivers and Lyft
implementation
,
sortings
1200
x4183
1075A
The King's Race
implementation
,
math
800
x8321
1073G
Yet Another LCP Problem
data structures
,
string suffix structures
2600
x859
1073F
Choosing Two Paths
dfs and similar
,
dp
,
greedy
,
trees
2500
x517
1073E
Segment Sum
bitmasks
,
combinatorics
,
dp
,
math
2300
x2372
1073D
Berland Fair
binary search
,
brute force
,
data structures
,
greedy
1700
x6301
1073C
Vasya and Robot
binary search
,
two pointers
1800
x4538
1073B
Vasya and Books
implementation
,
math
1000
x10388
1073A
Diverse Substring
implementation
,
strings
1000
x14827
1071E
Rain Protection
binary search
,
geometry
3500
x88
1070M
Algoland and Berland
constructive algorithms
,
divide and conquer
,
geometry
3000
x63
1070L
Odd Federalization
constructive algorithms
2600
x279
1070K
Video Posts
implementation
1100
x4825
1070J
Streets and Avenues in Berhattan
dp
2300
x678
1070I
Privatization of Roads in Berland
flows
,
graph matchings
,
graphs
2400
x531
1070H
BerOS File Suggestion
brute force
,
implementation
1500
x3607
1070G
Monsters and Potions
brute force
,
dp
,
greedy
,
implementation
2300
x814
1070F
Debate
greedy
1500
x3568
1070E
Getting Deals Done
binary search
,
data structures
2100
x1189
1070D
Garbage Disposal
greedy
1300
x4846
1070C
Cloud Computing
data structures
,
greedy
2000
x1993
1070B
Berkomnadzor
data structures
,
greedy
2400
x467
1070A
Find a Number
dp
,
graphs
,
number theory
,
shortest paths
2200
x2258
1068C
Colored Rooks
constructive algorithms
,
graphs
1700
x3103
1068B
LCM
math
,
number theory
1200
x11025
1068A
Birthday
math
1400
x6620
1067E
Random Forest Rank
dp
,
graph matchings
,
math
,
trees
2800
x419
1067D
Computer Game
dp
,
greedy
,
math
,
probabilities
3100
x350
1067C
Knights
constructive algorithms
2600
x607
1067B
Multihedgehog
dfs and similar
,
graphs
,
shortest paths
1800
x2504
1067A
Array Without Local Maximums
dp
1900
x2768
1066F
Yet another 2D Walking
dp
2100
x1751
1066E
Binary Numbers AND Sum
data structures
,
implementation
,
math
1700
x5982
1066D
Boxes Packing
binary search
,
implementation
1800
x5283
1066C
Books Queries
implementation
1400
x9354
1066B
Heaters
greedy
,
two pointers
1500
x8044
1066A
Vova and Train
math
1100
x14227
1065G
Fibonacci Suffix
strings
2700
x238
1065F
Up and Down the Tree
dfs and similar
,
dp
,
trees
2500
x1123
1065E
Side Transmutations
combinatorics
,
strings
2300
x1016
1065D
Three Pieces
dfs and similar
,
dp
,
shortest paths
2200
x1266
1065C
Make It Equal
greedy
1600
x7622
1065B
Vasya and Isolated Vertices
constructive algorithms
,
graphs
1300
x10725
1065A
Vasya and Chocolate
implementation
,
math
800
x14524
1064B
Equations of Mathematical Magic
math
1200
x7440
1064A
Make a triangle!
brute force
,
geometry
,
math
800
x21603
1063F
String Journey
data structures
,
dp
,
string suffix structures
3300
x795
1063E
Lasers and Mirrors
constructive algorithms
,
math
3000
x328
1063D
Candies for Children
brute force
,
math
2600
x416
1063C
Dwarves, Hats and Extrasensory Abilities
binary search
,
constructive algorithms
,
geometry
,
interactive
1900
x2782
1063B
Labyrinth
graphs
,
shortest paths
1800
x7024
1063A
Oh Those Palindromes
constructive algorithms
,
strings
1300
x10202
1062F
Upgrading Cities
dfs and similar
,
graphs
2900
x541
1062E
Company
binary search
,
data structures
,
dfs and similar
,
greedy
,
trees
2300
x1698
1062D
Fun with Integers
dfs and similar
,
graphs
,
implementation
,
math
1800
x3857
1062C
Banh-mi
greedy
,
implementation
,
math
1600
x5303
1062B
Math
greedy
,
math
,
number theory
1500
x8381
1062A
A Prank
greedy
,
implementation
1300
x8644
1061F
Lost Root
interactive
,
probabilities
2400
x679
1061E
Politics
flows
,
graphs
2600
x507
1061D
TV Shows
data structures
,
greedy
,
implementation
,
sortings
2000
x2288
1061C
Multiplicity
data structures
,
dp
,
implementation
,
math
,
number theory
1700
x8311
1061B
Views Matter
greedy
,
implementation
,
sortings
1400
x7206
1061A
Coins
greedy
,
implementation
,
math
800
x21222
1060H
Sophisticated Device
constructive algorithms
3300
x202
1060G
Balls and Pockets
data structures
3400
x131
1060F
Shrinking Tree
combinatorics
,
dp
2900
x523
1060E
Sergey and Subway
dfs and similar
,
dp
,
trees
2000
x2969
1060D
Social Circles
greedy
,
math
1900
x3554
1060C
Maximum Subrectangle
binary search
,
implementation
,
two pointers
1600
x4797
1060B
Maximum Sum of Digits
greedy
1100
x8764
1060A
Phone Numbers
brute force
800
x13660
1059E
Split the Tree
binary search
,
data structures
,
dp
,
greedy
,
trees
2400
x1349
1059D
Nature Reserve
binary search
,
geometry
,
ternary search
2200
x2536
1059C
Sequence Transformation
constructive algorithms
,
math
1600
x6966
1059B
Forgery
implementation
1300
x6886
1059A
Cashier
implementation
1000
x12410
1057C
Tanya and Colored Candies
*special problem
,
dp
2000
x855
1057B
DDoS
*special problem
,
brute force
1400
x1781
1057A
Bmail Computer Network
*special problem
,
dfs and similar
,
trees
900
x5737
1056H
Detect Robots
data structures
,
strings
3200
x142
1056G
Take Metro
brute force
,
data structures
,
graphs
2900
x237
1056F
Write The Contest
binary search
,
dp
,
math
2500
x461
1056E
Check Transcription
brute force
,
data structures
,
hashing
,
strings
2100
x1959
1056D
Decorate Apple Tree
constructive algorithms
,
dfs and similar
,
dp
,
graphs
,
greedy
,
sortings
,
trees
1600
x5611
1056C
Pick Heroes
greedy
,
implementation
,
interactive
,
sortings
1700
x2309
1056B
Divide Candies
math
,
number theory
1600
x4061
1056A
Determine Line
implementation
800
x6526
1055G
Jellyfish Nightmare
3500
x74
1055F
Tree and XOR
strings
,
trees
2900
x440
←
1
2
...
47
48
49
50
51
...
94
95
→
→ Pay attention
Before contest
Codeforces Round 940 (Div. 2) and CodeCraft-23
44:44:45
Register now »
*has extra registration
→ Filter Problems
Difficulty:
—
combine-tags-by-or
*combine tags by OR
2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
constructive algorithms
data structures
dfs and similar
divide and conquer
dp
dsu
expression parsing
fft
flows
games
geometry
graph matchings
graphs
greedy
hashing
implementation
interactive
math
matrices
meet-in-the-middle
number theory
probabilities
schedules
shortest paths
sortings
string suffix structures
strings
ternary search
trees
two pointers
Add tag
User lists
Name