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Problems
#
Name
1168B
Good Triple
brute force
,
two pointers
1900
x3415
1168A
Increasing by Modulo
binary search
,
greedy
1700
x6455
1167G
Low Budget Inception
brute force
,
geometry
3100
x146
1167F
Scalar Queries
combinatorics
,
data structures
,
math
,
sortings
2300
x1551
1167E
Range Deleting
binary search
,
combinatorics
,
data structures
,
two pointers
2100
x2508
1167D
Bicolored RBS
constructive algorithms
,
greedy
1500
x6830
1167C
News Distribution
dfs and similar
,
dsu
,
graphs
1400
x17002
1167B
Lost Numbers
brute force
,
divide and conquer
,
interactive
,
math
1400
x10637
1167A
Telephone Number
brute force
,
greedy
,
strings
800
x18779
1166F
Vicky's Delivery Service
data structures
,
dsu
,
graphs
,
hashing
2400
x685
1166E
The LCMs Must be Large
bitmasks
,
brute force
,
constructive algorithms
,
math
,
number theory
2100
x2780
1166D
Cute Sequences
binary search
,
brute force
,
greedy
,
math
2200
x2125
1166C
A Tale of Two Lands
binary search
,
sortings
,
two pointers
1500
x9128
1166B
All the Vowels Please
constructive algorithms
,
math
,
number theory
1100
x11251
1166A
Silent Classroom
combinatorics
,
greedy
900
x13956
1165F2
Microtransactions (hard version)
binary search
,
greedy
,
implementation
2000
x2021
1165F1
Microtransactions (easy version)
binary search
,
greedy
2000
x1765
1165E
Two Arrays and Sum of Functions
greedy
,
math
,
sortings
1600
x7800
1165D
Almost All Divisors
math
,
number theory
1600
x15139
1165C
Good String
greedy
1300
x12650
1165B
Polycarp Training
data structures
,
greedy
,
sortings
1000
x20322
1165A
Remainder
implementation
,
math
1100
x13560
1163F
Indecisive Taxi Fee
data structures
,
graphs
,
shortest paths
3000
x818
1163E
Magical Permutation
bitmasks
,
brute force
,
constructive algorithms
,
data structures
,
graphs
,
math
2400
x646
1163D
Mysterious Code
dp
,
strings
2100
x1217
1163C2
Power Transmission (Hard Edition)
data structures
,
geometry
,
implementation
,
math
1900
x3525
1163C1
Power Transmission (Easy Edition)
brute force
,
geometry
1900
x3259
1163B2
Cat Party (Hard Edition)
data structures
,
implementation
1600
x7084
1163B1
Cat Party (Easy Edition)
data structures
,
implementation
1500
x6875
1163A
Eating Soup
greedy
,
math
900
x12737
1162B
Double Matrix
brute force
,
greedy
1400
x5760
1162A
Zoning Restrictions Again
implementation
800
x8172
1160A2
Collaboration
*special problem
1159B
Expansion coefficient of the array
implementation
,
math
1300
x6994
1159A
A pile of stones
implementation
,
math
800
x12331
1158F
Density of subarrays
dp
,
math
3500
x391
1158E
Strange device
binary search
,
interactive
,
math
,
trees
3400
x147
1158D
Winding polygonal line
constructive algorithms
,
geometry
,
greedy
,
math
2600
x663
1158C
Permutation recovery
constructive algorithms
,
data structures
,
dfs and similar
,
graphs
,
greedy
,
math
,
sortings
2100
x1696
1158B
The minimal unique substring
constructive algorithms
,
math
,
strings
2200
x2184
1158A
The Party and Sweets
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
,
sortings
,
two pointers
1500
x6843
1157G
Inverse of Rows and Columns
brute force
,
constructive algorithms
2200
x870
1157F
Maximum Balanced Circle
constructive algorithms
,
dp
,
greedy
,
two pointers
2000
x2519
1157E
Minimum Array
binary search
,
data structures
,
greedy
1700
x8141
1157D
N Problems During K Days
constructive algorithms
,
greedy
,
math
1900
x3604
1157C2
Increasing Subsequence (hard version)
greedy
1700
x7758
1157C1
Increasing Subsequence (easy version)
greedy
1300
x12355
1157B
Long Number
greedy
1300
x14397
1157A
Reachable Numbers
implementation
1100
x15374
1156G
Optimizer
graphs
,
greedy
,
hashing
,
implementation
2700
x120
1156F
Card Bag
dp
,
math
,
probabilities
2300
x1327
1156E
Special Segments of Permutation
data structures
,
divide and conquer
,
dsu
,
two pointers
2200
x2747
1156D
0-1-Tree
dfs and similar
,
divide and conquer
,
dp
,
dsu
,
trees
2200
x3679
1156C
Match Points
binary search
,
greedy
,
sortings
,
ternary search
,
two pointers
2000
x5890
1156B
Ugly Pairs
dfs and similar
,
greedy
,
implementation
,
sortings
,
strings
1800
x6127
1156A
Inscribed Figures
geometry
1400
x8097
1155F
Delivery Oligopoly
brute force
,
dp
,
graphs
2800
x398
1155E
Guess the Root
brute force
,
interactive
,
math
2200
x1389
1155D
Beautiful Array
brute force
,
data structures
,
divide and conquer
,
dp
,
greedy
1900
x6678
1155C
Alarm Clocks Everywhere
math
,
number theory
1300
x9059
1155B
Game with Telephone Numbers
games
,
greedy
,
implementation
1200
x11715
1155A
Reverse a Substring
implementation
,
sortings
,
strings
1000
x13477
1154G
Minimum Possible LCM
brute force
,
greedy
,
math
,
number theory
2200
x2617
1154F
Shovels Shop
dp
,
greedy
,
sortings
2100
x2542
1154E
Two Teams
data structures
,
implementation
,
sortings
1800
x6022
1154D
Walking Robot
greedy
1500
x9756
1154C
Gourmet Cat
implementation
,
math
1400
x10211
1154B
Make Them Equal
math
1200
x16288
1154A
Restoring Three Numbers
math
800
x66299
1153F
Serval and Bonus Problem
combinatorics
,
dp
,
math
,
probabilities
2600
x759
1153E
Serval and Snake
binary search
,
brute force
,
interactive
2200
x1448
1153D
Serval and Rooted Tree
binary search
,
dfs and similar
,
dp
,
greedy
,
trees
1900
x4833
1153C
Serval and Parenthesis Sequence
greedy
,
strings
1700
x7262
1153B
Serval and Toy Bricks
constructive algorithms
,
greedy
1200
x8952
1153A
Serval and Bus
brute force
,
math
1000
x11325
1152F2
Neko Rules the Catniverse (Large Version)
bitmasks
,
dp
,
matrices
3000
x591
1152F1
Neko Rules the Catniverse (Small Version)
bitmasks
,
dp
,
matrices
2800
x512
1152E
Neko and Flashback
constructive algorithms
,
dfs and similar
,
graphs
2400
x935
1152D
Neko and Aki's Prank
dp
,
greedy
,
trees
2100
x2372
1152C
Neko does Maths
brute force
,
math
,
number theory
1800
x6520
1152B
Neko Performs Cat Furrier Transform
bitmasks
,
constructive algorithms
,
dfs and similar
,
math
1300
x8801
1152A
Neko Finds Grapes
greedy
,
implementation
,
math
800
x14957
1151F
Sonya and Informatics
combinatorics
,
dp
,
matrices
,
probabilities
2300
x1143
1151E
Number of Components
combinatorics
,
data structures
,
dp
,
math
2100
x3038
1151D
Stas and the Queue at the Buffet
greedy
,
math
,
sortings
1600
x8205
1151C
Problem for Nazar
constructive algorithms
,
math
1800
x5251
1151B
Dima and a Bad XOR
bitmasks
,
brute force
,
constructive algorithms
,
dp
1600
x10678
1151A
Maxim and Biology
brute force
,
strings
1000
x10980
1150B
Tiling Challenge
greedy
,
implementation
900
x10780
1150A
Stock Arbitraging
greedy
,
implementation
800
x11611
1149E
Election Promises
games
,
graphs
3200
x474
1149D
Abandoning Roads
brute force
,
dp
,
graphs
,
greedy
3000
x667
1149C
Tree Generator™
data structures
,
implementation
,
trees
2700
x1168
1149B
Three Religions
dp
,
implementation
,
strings
2200
x1858
1149A
Prefix Sum Primes
constructive algorithms
,
greedy
,
math
,
number theory
1200
x14669
1148H
Holy Diver
data structures
3500
x238
1148G
Gold Experience
constructive algorithms
,
graphs
,
math
,
number theory
,
probabilities
3300
x314
1148F
Foo Fighters
bitmasks
,
constructive algorithms
2700
x967
1148E
Earth Wind and Fire
constructive algorithms
,
greedy
,
math
,
sortings
,
two pointers
2300
x1655
1148D
Dirty Deeds Done Dirt Cheap
greedy
,
sortings
1800
x4860
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