Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
4 days
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
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
722B
Verse Pattern
implementation
,
strings
1200
x6506
722A
Broken Clock
brute force
,
implementation
1300
x6646
721E
Road to Home
binary search
,
dp
2700
x306
721D
Maxim and Array
constructive algorithms
,
data structures
,
greedy
,
math
2000
x2355
721C
Journey
dp
,
graphs
1800
x5914
721B
Passwords
implementation
,
math
,
sortings
,
strings
1100
x12102
721A
One-dimensional Japanese Crossword
implementation
800
x18611
720F
Array Covering
data structures
3100
x147
720E
Cipher
implementation
3100
x65
720D
Slalom
data structures
,
dp
,
sortings
3100
x301
720C
Homework
constructive algorithms
3100
x102
720B
Cactusophobia
dfs and similar
,
flows
2400
x407
720A
Closing ceremony
greedy
2000
x865
719B
Anatoly and Cockroaches
greedy
1400
x8502
719A
Vitya in the Countryside
implementation
1100
x15555
718E
Matvey's Birthday
bitmasks
,
graphs
3300
x358
718D
Andrew and Chemistry
dp
,
hashing
,
trees
2900
x395
718C
Sasha and Array
data structures
,
math
,
matrices
2300
x3911
718A
Efim and Strange Grade
dp
,
implementation
,
math
1700
x4403
717I
Cowboy Beblop at his computer
geometry
2800
x209
717H
Pokermon League challenge
math
,
probabilities
2400
x423
717G
Underfail
flows
2400
x651
717F
Heroes of Making Magic III
data structures
2600
x330
717E
Paint it really, really dark gray
dfs and similar
1900
x1451
717D
Dexterina’s Lab
games
,
matrices
,
probabilities
1900
x1443
717C
Potions Homework
implementation
,
sortings
1200
x3950
717B
R3D3’s Summer Adventure
dp
,
greedy
2700
x151
717A
Festival Organization
combinatorics
,
math
,
number theory
2900
x369
716B
Complete the Word
greedy
,
two pointers
1300
x12238
716A
Crazy Computer
implementation
800
x22378
715E
Complete the Permutations
combinatorics
,
fft
,
graphs
,
math
3400
x357
715D
Create a Maze
constructive algorithms
3100
x291
715C
Digit Tree
dfs and similar
,
divide and conquer
,
dsu
,
trees
2700
x2151
715B
Complete The Graph
binary search
,
constructive algorithms
,
graphs
,
shortest paths
2300
x2896
715A
Plus and Square Root
constructive algorithms
,
math
1600
x5625
714B
Filya and Homework
implementation
,
sortings
1200
x14565
714A
Meeting of Old Friends
implementation
,
math
1100
x10799
713E
Sonya Partymaker
binary search
,
dp
3300
x353
713D
Animals and Puzzle
binary search
,
data structures
2700
x1158
713C
Sonya and Problem Wihtout a Legend
dp
,
sortings
2300
x5432
713B
Searching Rectangles
binary search
,
constructive algorithms
,
interactive
2200
x1458
713A
Sonya and Queries
data structures
,
implementation
1400
x8504
712E
Memory and Casinos
data structures
,
math
,
probabilities
2500
x618
712D
Memory and Scores
combinatorics
,
dp
,
math
2200
x1847
712C
Memory and De-Evolution
greedy
,
math
1600
x5851
712B
Memory and Trident
implementation
,
strings
1100
x9780
712A
Memory and Crow
implementation
,
math
800
x11913
711E
ZS and The Birthday Paradox
math
,
number theory
,
probabilities
2300
x1276
711D
Directed Roads
combinatorics
,
dfs and similar
,
graphs
,
math
1900
x4498
711C
Coloring Trees
dp
1700
x8274
711B
Chris and Magic Square
constructive algorithms
,
implementation
1400
x8423
711A
Bus to Udayland
brute force
,
implementation
800
x29543
710F
String Set Queries
brute force
,
data structures
,
hashing
,
interactive
,
string suffix structures
,
strings
2400
x1905
710E
Generate a String
dfs and similar
,
dp
2000
x5230
710D
Two Arithmetic Progressions
math
,
number theory
2500
x1358
710C
Magic Odd Square
constructive algorithms
,
math
1500
x5134
710B
Optimal Point on a Line
brute force
,
sortings
1400
x8800
710A
King Moves
implementation
800
x13851
709B
Checkpoints
greedy
,
implementation
,
sortings
1500
x4741
709A
Juicer
implementation
900
x32597
708E
Student's Camp
dp
,
math
3100
x1013
708D
Incorrect Flow
flows
2900
x765
708C
Centroids
data structures
,
dfs and similar
,
dp
,
graphs
,
greedy
,
trees
2300
x3378
708B
Recover the String
constructive algorithms
,
greedy
,
implementation
,
math
1900
x3255
708A
Letters Cyclic Shift
constructive algorithms
,
greedy
,
implementation
,
strings
1200
x9015
707E
Garlands
data structures
2400
x1227
707D
Persistent Bookcase
bitmasks
,
data structures
,
dfs and similar
,
implementation
2200
x2711
707C
Pythagorean Triples
math
,
number theory
1500
x12696
707B
Bakery
graphs
1300
x12987
707A
Brain's Photos
implementation
800
x49595
706E
Working routine
data structures
,
implementation
2500
x1193
706D
Vasiliy's Multiset
binary search
,
bitmasks
,
data structures
,
trees
1800
x10204
706C
Hard problem
dp
,
strings
1600
x16434
706B
Interesting drink
binary search
,
dp
,
implementation
1100
x64407
706A
Beru-taxi
brute force
,
geometry
,
implementation
900
x14525
705B
Spider Man
games
,
math
1100
x9177
705A
Hulk
implementation
800
x108231
704E
Iron Man
data structures
,
geometry
,
trees
3300
x283
704D
Captain America
flows
,
greedy
3100
x792
704C
Black Widow
dp
,
graphs
,
implementation
,
math
2900
x464
704B
Ant Man
dp
,
graphs
,
greedy
2500
x1875
704A
Thor
brute force
,
data structures
,
implementation
1600
x9344
703E
Mishka and Divisors
dp
,
number theory
2600
x601
703D
Mishka and Interesting sum
data structures
2100
x3633
703C
Chris and Road
geometry
,
implementation
2100
x1862
703B
Mishka and trip
implementation
,
math
1400
x5680
703A
Mishka and Game
implementation
800
x57223
702F
T-Shirts
data structures
2800
x1424
702E
Analysis of Pathes in Functional Graph
data structures
,
graphs
2100
x2614
702D
Road to Post Office
math
1900
x3376
702C
Cellular Network
binary search
,
implementation
,
two pointers
1500
x15315
702B
Powers of Two
brute force
,
data structures
,
implementation
,
math
1500
x11982
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x45532
701C
They Are Everywhere
binary search
,
strings
,
two pointers
1500
x15322
701B
Cells Not Under Attack
data structures
,
math
1200
x11792
701A
Cards
greedy
,
implementation
800
x19684
700E
Cool Slogans
string suffix structures
,
strings
3300
x1188
700D
Huffman Coding on Segment
data structures
,
greedy
3100
x462
700C
Break Up
dfs and similar
,
graphs
2600
x1306
700B
Connecting Universities
dfs and similar
,
dp
,
graphs
,
trees
1800
x4016
←
1
2
...
68
69
70
71
72
...
99
100
→
User lists
Name