Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Rayan
→ Pay attention
Before contest
Good Bye 2024: 2025 is NEAR
3 days
→ 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
926J
Segments
data structures
2100
x396
926I
A Vital Problem
1700
x668
926H
Endless Roses Most Beautiful
2200
x219
926G
Large Bouquets
1500
x1485
926F
Mobile Communications
2000
x239
926E
Merge Equal Elements
constructive algorithms
,
data structures
1900
x934
926D
Choose Place
1600
x936
926C
Is This a Zebra?
implementation
1700
x1891
926B
Add Points
math
,
number theory
1800
x1749
926A
2-3-numbers
implementation
,
math
1300
x3822
925F
Parametric Circulation
binary search
,
flows
3100
x117
925E
May Holidays
data structures
,
trees
2900
x410
925D
Aztec Catacombs
constructive algorithms
2600
x528
925C
Big Secret
constructive algorithms
,
math
2200
x1322
925B
Resource Distribution
binary search
,
implementation
,
sortings
1700
x2209
925A
Stairs and Elevators
binary search
1600
x3548
924F
Minimal Subset Difference
dp
3200
x227
924E
Wardrobe
dp
,
greedy
2700
x520
924D
Contact ATC
2500
x875
924C
Riverside Curio
data structures
,
dp
,
greedy
1700
x3887
924B
Three-level Laser
binary search
,
greedy
,
two pointers
1600
x5344
924A
Mystical Mosaic
greedy
,
implementation
1300
x5070
923F
Public Service
constructive algorithms
,
graphs
,
trees
3200
x76
923E
Perpetual Subtraction
fft
,
math
,
matrices
3100
x462
923D
Picking Strings
constructive algorithms
,
implementation
,
strings
2500
x1202
923C
Perfect Security
data structures
,
greedy
,
strings
,
trees
1800
x4321
923B
Producing Snow
binary search
,
data structures
1600
x7371
923A
Primal Sport
math
,
number theory
1700
x5051
922F
Divisibility
constructive algorithms
,
dp
,
greedy
,
number theory
2400
x646
922E
Birds
dp
2200
x2171
922D
Robot Vacuum Cleaner
greedy
,
sortings
1800
x4412
922C
Cave Painting
brute force
,
number theory
1600
x7171
922B
Magic Forest
brute force
1300
x8575
922A
Cloning Toys
implementation
1300
x11754
92114
Labyrinth-14
3200
92113
Labyrinth-13
3200
92112
Labyrinth-12
3200
92111
Labyrinth-11
3200
92110
Labyrinth-10
3200
92109
Labyrinth-9
3200
92108
Labyrinth-8
3200
92107
Labyrinth-7
3200
92106
Labyrinth-6
3200
92105
Labyrinth-5
3200
92104
Labyrinth-4
3200
92103
Labyrinth-3
3200
92102
Labyrinth-2
3200
92101
Labyrinth-1
3200
920G
List Of Integers
binary search
,
bitmasks
,
brute force
,
combinatorics
,
math
,
number theory
2200
x1769
920F
SUM and REPLACE
brute force
,
data structures
,
dsu
,
number theory
2000
x7020
920E
Connected Components?
data structures
,
dfs and similar
,
dsu
,
graphs
2100
x6535
920D
Tanks
dp
,
greedy
,
implementation
2400
x738
920C
Swap Adjacent Elements
dfs and similar
,
greedy
,
math
,
sortings
,
two pointers
1400
x9286
920B
Tea Queue
implementation
1200
x7428
920A
Water The Garden
implementation
1000
x7827
919F
A Game With Numbers
games
,
graphs
,
shortest paths
2600
x341
919E
Congruence Equation
chinese remainder theorem
,
math
,
number theory
2100
x2150
919D
Substring
dfs and similar
,
dp
,
graphs
1700
x10319
919C
Seat Arrangements
brute force
,
implementation
1300
x9014
919B
Perfect Number
binary search
,
brute force
,
dp
,
implementation
,
number theory
1100
x28578
919A
Supermarket
brute force
,
greedy
,
implementation
800
x16188
918B
Radio Station
implementation
,
strings
900
x17060
918A
Eleven
brute force
,
implementation
800
x17271
917E
Upside Down
data structures
,
string suffix structures
,
strings
,
trees
3400
x137
917D
Stranger Trees
dp
,
math
,
matrices
,
trees
2600
x1204
917C
Pollywog
combinatorics
,
dp
,
matrices
2900
x406
917B
MADMAX
dfs and similar
,
dp
,
games
,
graphs
1700
x3559
917A
The Monster
dp
,
greedy
,
implementation
,
math
1800
x3531
916E
Jamie and Tree
data structures
,
trees
2400
x1709
916D
Jamie and To-do List
data structures
,
interactive
,
trees
2200
x519
916C
Jamie and Interesting Graph
constructive algorithms
,
graphs
,
shortest paths
1600
x5152
916B
Jamie and Binary Sequence (changed after round)
bitmasks
,
greedy
,
math
2000
x1922
916A
Jamie and Alarm Snooze
brute force
,
implementation
,
math
900
x8647
915G
Coprime Arrays
math
,
number theory
2300
x1299
915F
Imbalance Value of a Tree
data structures
,
dsu
,
graphs
,
trees
2400
x2569
915E
Physical Education Lessons
data structures
,
implementation
,
sortings
2300
x4540
915D
Almost Acyclic Graph
dfs and similar
,
graphs
2200
x3492
915C
Permute Digits
dp
,
greedy
1700
x7115
915B
Browser
implementation
1300
x7829
915A
Garden
implementation
900
x14877
914H
Ember and Storm's Tree Game
combinatorics
,
dp
,
games
,
trees
3400
x240
914G
Sum the Fibonacci
bitmasks
,
divide and conquer
,
dp
,
fft
,
math
2600
x940
914F
Substrings in a String
bitmasks
,
brute force
,
data structures
,
string suffix structures
,
strings
3000
x1690
914E
Palindromes in a Tree
bitmasks
,
data structures
,
divide and conquer
,
trees
2400
x1532
914D
Bash and a Tough Math Puzzle
data structures
,
number theory
1900
x5419
914C
Travelling Salesman and Special Numbers
brute force
,
combinatorics
,
dp
1800
x3854
914B
Conan and Agasa play a Card Game
games
,
greedy
,
implementation
1200
x8663
914A
Perfect Squares
brute force
,
implementation
,
math
900
x14267
913H
Don't Exceed
math
,
probabilities
3400
x128
913G
Power Substring
math
,
number theory
3200
x209
913F
Strongly Connected Tournament
dp
,
graphs
,
math
,
probabilities
2800
x663
913E
Logical Expression
bitmasks
,
dp
,
shortest paths
2400
x811
913D
Too Easy Problems
binary search
,
brute force
,
data structures
,
greedy
,
sortings
1800
x4810
913C
Party Lemonade
bitmasks
,
dp
,
greedy
1600
x7977
913B
Christmas Spruce
implementation
,
trees
1200
x16322
913A
Modular Exponentiation
implementation
,
math
900
x21501
912E
Prime Gift
binary search
,
dfs and similar
,
math
,
meet-in-the-middle
,
number theory
,
two pointers
2400
x1652
912D
Fishes
data structures
,
graphs
,
greedy
,
probabilities
,
shortest paths
2100
x2026
912C
Perun, Ult!
brute force
,
greedy
,
sortings
2500
x520
912B
New Year's Eve
bitmasks
,
constructive algorithms
,
number theory
1300
x12277
←
1
2
...
60
61
62
63
64
...
100
101
→
User lists
Name