Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Please read
the new rule regarding the restriction on the use of AI tools
.
×
→ Pay attention
Before contest
Kotlin Heroes: Episode 11
07:09:54
Register now »
→ 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
1185F
Two Pizzas
bitmasks
,
brute force
2100
x2040
1185E
Polycarp and Snakes
brute force
,
implementation
2000
x2649
1185D
Extra Element
implementation
,
math
1700
x6719
1185C2
Exam in BerSU (hard version)
brute force
,
data structures
,
greedy
,
math
1700
x7454
1184E3
Daleks' Invasion (hard)
data structures
,
dsu
,
graphs
,
trees
2400
x563
1184E2
Daleks' Invasion (medium)
dfs and similar
,
graphs
,
shortest paths
,
trees
2100
x946
1184E1
Daleks' Invasion (easy)
graphs
,
trees
1900
x1617
1184D2
Parallel Universes (Hard)
math
,
matrices
3100
x106
1184D1
Parallel Universes (Easy)
implementation
1600
x2530
1184C3
Heidi and the Turing Test (Hard)
3200
x41
1184C2
Heidi and the Turing Test (Medium)
data structures
2200
x615
1184C1
Heidi and the Turing Test (Easy)
implementation
1600
x2293
1184B3
The Doctor Meets Vader (Hard)
flows
,
shortest paths
2700
x173
1184B2
The Doctor Meets Vader (Medium)
flows
,
graph matchings
,
graphs
,
shortest paths
,
sortings
2200
x573
1184B1
The Doctor Meets Vader (Easy)
binary search
,
sortings
1400
x5240
1184A3
Heidi Learns Hashing (Hard)
fft
,
math
,
number theory
3100
x139
1184A2
Heidi Learns Hashing (Medium)
brute force
,
number theory
2100
x985
1183H
Subsequences (hard version)
dp
,
strings
1900
x3178
1183G
Candy Box (hard version)
greedy
,
implementation
,
sortings
2000
x2365
1183F
Topforces Strikes Back
brute force
,
math
,
sortings
2100
x2016
1183E
Subsequences (easy version)
dp
,
graphs
,
implementation
,
shortest paths
2000
x4820
1183D
Candy Box (easy version)
greedy
,
sortings
1400
x14264
1183C
Computer Game
binary search
,
math
1400
x13953
1182F
Maximum Sine
binary search
,
data structures
,
number theory
2700
x341
1182E
Product Oriented Recurrence
dp
,
math
,
matrices
,
number theory
2300
x2811
1182D
Complete Mirror
constructive algorithms
,
dfs and similar
,
dp
,
hashing
,
implementation
,
trees
2400
x840
1182C
Beautiful Lyrics
data structures
,
greedy
,
strings
1700
x4421
1181E2
A Story of One Country (Hard)
brute force
,
greedy
,
sortings
3000
x284
1181E1
A Story of One Country (Easy)
brute force
,
divide and conquer
,
sortings
2500
x480
1181D
Irrigation
binary search
,
data structures
,
implementation
,
sortings
,
trees
,
two pointers
2200
x2371
1181C
Flag
brute force
,
combinatorics
,
dp
,
implementation
1900
x3125
1181B
Split a Number
greedy
,
implementation
,
strings
1500
x6310
1180B
Nick and Array
greedy
,
implementation
1500
x9547
1179E
Alesya and Discrete Math
divide and conquer
,
interactive
3200
x175
1179D
Fedor Runs for President
data structures
,
dp
,
trees
2700
x831
1179C
Serge and Dining Room
binary search
,
data structures
,
graph matchings
,
greedy
,
implementation
,
math
,
trees
2200
x2043
1179B
Tolik and His Uncle
constructive algorithms
1800
x4370
1179A
Valeriy and Deque
data structures
,
implementation
1500
x10498
1178H
Stock Exchange
binary search
,
flows
,
graphs
3500
x230
1178G
The Awesomest Vertex
data structures
,
dfs and similar
3000
x442
1178F2
Long Colorful Strip
dp
2600
x892
1178F1
Short Colorful Strip
combinatorics
,
dfs and similar
,
dp
2200
x2099
1178E
Archaeology
brute force
,
constructive algorithms
,
greedy
,
strings
1900
x4318
1178D
Prime Graph
constructive algorithms
,
greedy
,
math
,
number theory
1500
x7390
1177B
Digits Sequence (Hard Edition)
binary search
,
divide and conquer
,
implementation
1800
x2562
1176F
Destroy it!
dp
,
implementation
,
sortings
2100
x2034
1176E
Cover it!
dfs and similar
,
dsu
,
graphs
,
shortest paths
,
trees
1700
x11025
1176D
Recover it!
dfs and similar
,
graphs
,
greedy
,
number theory
,
sortings
1800
x5272
1175G
Yet Another Partiton Problem
data structures
,
divide and conquer
,
dp
,
geometry
,
two pointers
3000
x480
1175F
The Number of Subpermutations
brute force
,
data structures
,
divide and conquer
,
hashing
,
math
2500
x1852
1175E
Minimal Segment Cover
data structures
,
dfs and similar
,
divide and conquer
,
dp
,
greedy
,
implementation
,
trees
2200
x3574
1175D
Array Splitting
greedy
,
sortings
1900
x6198
1175C
Electrification
binary search
,
brute force
,
greedy
1600
x6775
1175B
Catch Overflow!
data structures
,
expression parsing
,
implementation
1600
x10635
1174F
Ehab and the Big Finale
constructive algorithms
,
divide and conquer
,
graphs
,
implementation
,
interactive
,
trees
2400
x1721
1174E
Ehab and the Expected GCD Problem
combinatorics
,
dp
,
math
,
number theory
2500
x1432
1174D
Ehab and the Expected XOR Problem
bitmasks
,
constructive algorithms
1900
x4686
1172F
Nauuo and Bug
data structures
3300
x429
1172E
Nauuo and ODT
data structures
3300
x309
1172D
Nauuo and Portals
constructive algorithms
2900
x501
1172C2
Nauuo and Pictures (hard version)
dp
,
probabilities
2600
x845
1172C1
Nauuo and Pictures (easy version)
dp
,
probabilities
2300
x1080
1172B
Nauuo and Circle
combinatorics
,
dfs and similar
,
dp
,
trees
1900
x4034
1172A
Nauuo and Cards
greedy
,
implementation
1800
x4979
1169B
Pairs
graphs
,
implementation
1500
x9728
1168E
Xor Permutations
constructive algorithms
,
math
3100
x375
1168D
Anagram Paths
dp
,
implementation
,
trees
3000
x344
1168C
And Reachability
bitmasks
,
dp
2200
x2410
1168B
Good Triple
brute force
,
two pointers
1900
x3562
1168A
Increasing by Modulo
binary search
,
greedy
1700
x6813
1167G
Low Budget Inception
brute force
,
geometry
3100
x149
1167F
Scalar Queries
combinatorics
,
data structures
,
math
,
sortings
2300
x1622
1167E
Range Deleting
binary search
,
combinatorics
,
data structures
,
two pointers
2100
x2660
1167D
Bicolored RBS
constructive algorithms
,
greedy
1500
x6952
1167C
News Distribution
dfs and similar
,
dsu
,
graphs
1400
x18315
1167B
Lost Numbers
brute force
,
divide and conquer
,
interactive
,
math
1400
x11634
1166F
Vicky's Delivery Service
data structures
,
dsu
,
graphs
,
hashing
2400
x702
1166E
The LCMs Must be Large
bitmasks
,
brute force
,
constructive algorithms
,
math
,
number theory
2100
x2824
1166D
Cute Sequences
binary search
,
brute force
,
greedy
,
math
2200
x2163
1166C
A Tale of Two Lands
binary search
,
sortings
,
two pointers
1500
x9600
1165F2
Microtransactions (hard version)
binary search
,
greedy
,
implementation
2000
x2177
1165F1
Microtransactions (easy version)
binary search
,
greedy
2000
x1894
1165E
Two Arrays and Sum of Functions
greedy
,
math
,
sortings
1600
x8296
1165D
Almost All Divisors
math
,
number theory
1600
x15989
1163F
Indecisive Taxi Fee
data structures
,
graphs
,
shortest paths
3000
x879
1163E
Magical Permutation
bitmasks
,
brute force
,
constructive algorithms
,
data structures
,
graphs
,
math
2400
x671
1163D
Mysterious Code
dp
,
strings
2100
x1268
1163C2
Power Transmission (Hard Edition)
data structures
,
geometry
,
implementation
,
math
1900
x3623
1163C1
Power Transmission (Easy Edition)
brute force
,
geometry
1900
x3313
1163B2
Cat Party (Hard Edition)
data structures
,
implementation
1600
x7216
1163B1
Cat Party (Easy Edition)
data structures
,
implementation
1500
x6967
1162B
Double Matrix
brute force
,
greedy
1400
x5801
1158F
Density of subarrays
dp
,
math
3500
x410
1158E
Strange device
binary search
,
interactive
,
math
,
trees
3400
x151
1158D
Winding polygonal line
constructive algorithms
,
geometry
,
greedy
,
math
2600
x836
1158C
Permutation recovery
constructive algorithms
,
data structures
,
dfs and similar
,
graphs
,
greedy
,
math
,
sortings
2100
x1937
1158B
The minimal unique substring
constructive algorithms
,
math
,
strings
2200
x2227
1158A
The Party and Sweets
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
,
sortings
,
two pointers
1500
x7106
1157G
Inverse of Rows and Columns
brute force
,
constructive algorithms
2200
x919
1157F
Maximum Balanced Circle
constructive algorithms
,
dp
,
greedy
,
two pointers
2000
x2633
←
1
2
...
29
30
31
32
33
...
68
69
→
User lists
Name