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!)
3 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
949C
Data Center Maintenance
dfs and similar
,
graphs
1900
x2081
949B
A Leapfrog in the Array
constructive algorithms
,
math
1700
x3732
949A
Zebras
greedy
1600
x5403
948A
Protect Sheep
brute force
,
dfs and similar
,
graphs
,
implementation
900
x13897
946G
Almost Increasing Array
data structures
,
dp
2500
x690
946F
Fibonacci String Subsequences
combinatorics
,
dp
,
matrices
2400
x572
946E
Largest Beautiful Number
greedy
,
implementation
2200
x1103
946D
Timetable
dp
1800
x4460
946C
String Transformation
greedy
,
strings
1300
x8898
946B
Weird Subtraction Process
math
,
number theory
1100
x10901
946A
Partition
greedy
800
x16597
940F
Machine Learning
brute force
,
data structures
2600
x2664
940E
Cashback
data structures
,
dp
,
greedy
,
math
2000
x3788
940D
Alena And The Heater
binary search
,
implementation
1600
x3638
940C
Phone Numbers
constructive algorithms
,
implementation
,
strings
1500
x5902
940B
Our Tanya is Crying Out Loud
dp
,
greedy
1400
x9038
940A
Points on the line
brute force
,
greedy
,
sortings
1200
x8335
939F
Cutlet
data structures
,
dp
2400
x971
939E
Maximize!
binary search
,
greedy
,
ternary search
,
two pointers
1800
x3163
939D
Love Rescue
dfs and similar
,
dsu
,
graphs
,
greedy
,
strings
1600
x7359
939C
Convenient For Everybody
binary search
,
two pointers
1600
x4643
939B
Hamster Farm
implementation
1000
x10629
939A
Love Triangle
graphs
800
x25492
938G
Shortest Path Queries
bitmasks
,
data structures
,
dsu
,
graphs
2900
x918
938F
Erasing Substrings
bitmasks
,
dp
,
greedy
2700
x506
938E
Max History
combinatorics
,
math
2300
x1329
938D
Buy a Ticket
data structures
,
graphs
,
shortest paths
2000
x5761
938C
Constructing Tests
binary search
,
brute force
,
constructive algorithms
1700
x3324
938B
Run For Your Prize
brute force
,
greedy
1100
x8879
938A
Word Correction
implementation
800
x11500
937B
Vile Grasshoppers
brute force
,
math
,
number theory
1400
x6917
937A
Olympiad
implementation
,
sortings
800
x15250
936E
Iqea
data structures
,
dfs and similar
,
divide and conquer
,
dsu
,
shortest paths
,
trees
3400
x190
936D
World of Tank
dp
,
greedy
3000
x331
936C
Lock Puzzle
constructive algorithms
,
implementation
,
strings
2300
x1182
936B
Sleepy Game
dfs and similar
,
dp
,
games
,
graphs
2100
x3274
936A
Save Energy!
binary search
,
implementation
,
math
1700
x4372
935F
Fafa and Array
data structures
,
greedy
2600
x368
935E
Fafa and Ancient Mathematics
dfs and similar
,
dp
,
trees
2300
x896
935D
Fafa and Ancient Alphabet
math
,
probabilities
1900
x2640
935C
Fifa and Fafa
geometry
1600
x4758
935B
Fafa and the Gates
implementation
900
x11642
935A
Fafa and his Company
brute force
,
implementation
800
x43392
934B
A Prosperous Lot
constructive algorithms
,
implementation
1200
x8709
934A
A Compatible Pair
brute force
,
games
1400
x7014
933E
A Preponderant Reunion
constructive algorithms
,
dp
3200
x226
933D
A Creative Cutout
brute force
,
combinatorics
,
math
2900
x333
933C
A Colourful Prospect
geometry
,
graphs
2700
x584
933B
A Determined Cleanup
math
2000
x1924
933A
A Twisty Movement
dp
1800
x4995
932G
Palindrome Partition
dp
,
string suffix structures
,
strings
2900
x952
932F
Escape Through Leaf
data structures
,
dp
,
geometry
2700
x2979
932E
Team Work
combinatorics
,
dp
,
math
2400
x2893
932D
Tree
binary search
,
dp
,
trees
2200
x1751
932C
Permutation Cycle
brute force
,
constructive algorithms
1600
x4028
932B
Recursive Queries
binary search
,
data structures
,
dfs and similar
1300
x8186
932A
Palindromic Supersequence
constructive algorithms
800
x10309
931C
Laboratory Work
implementation
,
math
1700
x3356
931B
World Cup
constructive algorithms
,
implementation
1200
x7154
931A
Friends Meeting
brute force
,
greedy
,
implementation
,
math
800
x12230
930E
Coins Exhibition
data structures
,
dp
,
math
2900
x437
930D
Game with Tokens
data structures
,
games
,
implementation
2500
x408
930C
Teodor is not a liar!
data structures
,
dp
1900
x2134
930B
Game with String
implementation
,
probabilities
,
strings
1600
x2681
930A
Peculiar apple-tree
dfs and similar
,
graphs
,
trees
1500
x7219
929D
Пограничные врата
2400
x152
929C
Красивая команда
*special problem
,
combinatorics
,
math
1700
x1154
929B
Места в самолёте
*special problem
,
implementation
1300
x2045
929A
Прокат велосипедов
*special problem
,
greedy
,
implementation
1400
x2500
928D
Autocompletion
*special problem
,
strings
,
trees
1900
x813
928C
Dependency management
*special problem
,
graphs
,
implementation
1900
x888
928B
Chat
*special problem
,
dp
1400
x2540
928A
Login Verification
*special problem
,
strings
1200
x3402
927A
BuberPool Taxi Optimization
*special problem
,
interactive
2900
x1
926J
Segments
data structures
2100
x392
926I
A Vital Problem
1700
x666
926H
Endless Roses Most Beautiful
2200
x219
926G
Large Bouquets
1500
x1482
926F
Mobile Communications
2000
x236
926E
Merge Equal Elements
constructive algorithms
,
data structures
1900
x931
926D
Choose Place
1600
x934
926C
Is This a Zebra?
implementation
1700
x1887
926B
Add Points
math
,
number theory
1800
x1714
926A
2-3-numbers
implementation
,
math
1300
x3813
925F
Parametric Circulation
binary search
,
flows
3100
x114
925E
May Holidays
data structures
,
trees
2900
x401
925D
Aztec Catacombs
constructive algorithms
2600
x524
925C
Big Secret
constructive algorithms
,
math
2200
x1317
925B
Resource Distribution
binary search
,
implementation
,
sortings
1700
x2208
925A
Stairs and Elevators
binary search
1600
x3482
924F
Minimal Subset Difference
dp
3200
x213
924E
Wardrobe
dp
,
greedy
2700
x517
924D
Contact ATC
2500
x872
924C
Riverside Curio
data structures
,
dp
,
greedy
1700
x3873
924B
Three-level Laser
binary search
,
greedy
,
two pointers
1600
x5299
924A
Mystical Mosaic
greedy
,
implementation
1300
x5051
923F
Public Service
constructive algorithms
,
graphs
,
trees
3200
x76
923E
Perpetual Subtraction
fft
,
math
,
matrices
3100
x455
923D
Picking Strings
constructive algorithms
,
implementation
,
strings
2500
x1199
923C
Perfect Security
data structures
,
greedy
,
strings
,
trees
1800
x4305
←
1
2
...
56
57
58
59
60
...
97
98
→
User lists
Name