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Custom test
Problems
#
Name
480E
Parking Lot
data structures
,
divide and conquer
2800
x512
1423H
Virus
data structures
,
divide and conquer
,
dsu
,
graphs
2500
x509
903G
Yet Another Maxflow Problem
data structures
,
flows
,
graphs
2700
x509
793F
Julia the snail
data structures
,
divide and conquer
,
dp
3000
x508
1085G
Beautiful Matrix
combinatorics
,
data structures
,
dp
2900
x506
1677E
Tokitsukaze and Beautiful Subsegments
data structures
2900
x505
1371F
Raging Thunder
data structures
,
divide and conquer
,
implementation
2800
x505
316E3
Summer Homework
data structures
,
math
2300
x505
1044F
DFS
data structures
2700
x504
1945H
GCD is Greater
brute force
,
data structures
,
math
,
number theory
2600
x502
187D
BRT Contract
data structures
2800
x501
421D
Bug in Code
binary search
,
data structures
,
sortings
1900
x495
1184E3
Daleks' Invasion (hard)
data structures
,
dsu
,
graphs
,
trees
2400
x494
1109E
Sasha and a Very Easy Test
data structures
,
number theory
2700
x494
1137E
Train Car Selection
data structures
,
greedy
2700
x491
873E
Awards For Contestants
brute force
,
data structures
,
dp
2300
x491
1088F
Ehab and a weird weight formula
data structures
,
trees
2800
x490
1286E
Fedya the Potter Strikes Back
data structures
,
strings
3200
x489
916D
Jamie and To-do List
data structures
,
interactive
,
trees
2200
x489
958C3
Encryption (hard)
data structures
,
dp
2500
x487
696E
...Wait for it...
data structures
,
dsu
,
trees
3000
x486
1260F
Colored Tree
data structures
,
trees
2700
x481
757G
Can Bash Save the Day?
data structures
,
divide and conquer
,
graphs
,
trees
3400
x480
1090C
New Year Presents
constructive algorithms
,
data structures
2400
x479
763E
Timofey and our friends animals
data structures
,
divide and conquer
,
dsu
2900
x475
311C
Fetch the Treasure
brute force
,
data structures
,
graphs
,
shortest paths
2500
x475
1419F
Rain of Fire
binary search
,
data structures
,
dfs and similar
,
dsu
,
graphs
,
implementation
2800
x474
1879F
Last Man Standing
brute force
,
data structures
,
number theory
2800
x472
1749F
Distance to the Path
data structures
,
dfs and similar
,
trees
2800
x472
887D
Ratings and Reality Shows
data structures
,
two pointers
2400
x471
1340F
Nastya and CBS
brute force
,
data structures
,
hashing
3300
x470
722F
Cyclic Cipher
chinese remainder theorem
,
data structures
,
implementation
,
number theory
,
two pointers
2800
x470
1070B
Berkomnadzor
data structures
,
greedy
2400
x469
1379F2
Chess Strikes Back (hard version)
data structures
,
divide and conquer
2800
x468
418D
Big Problems for Organizers
data structures
,
graphs
,
trees
2800
x468
1533C
Sweets
*special problem
,
data structures
,
implementation
x467
1601E
Phys Ed Online
data structures
,
dp
,
greedy
2900
x464
1140G
Double Tree
data structures
,
divide and conquer
,
shortest paths
,
trees
2700
x462
1137F
Matches Are Not a Child's Play
data structures
,
trees
3400
x460
798E
Mike and code of a permutation
constructive algorithms
,
data structures
,
graphs
,
sortings
3000
x459
1905F
Field Should Not Be Empty
brute force
,
data structures
,
divide and conquer
2600
x458
1076G
Array Game
data structures
,
games
3000
x457
1452G
Game On Tree
data structures
,
dfs and similar
,
greedy
,
trees
2700
x456
1824D
LuoTianyi and the Function
data structures
3000
x452
700D
Huffman Coding on Segment
data structures
,
greedy
3100
x452
212D
Cutting a Fence
binary search
,
data structures
,
dsu
2500
x451
68D
Half-decay tree
data structures
,
divide and conquer
,
dp
,
math
,
probabilities
2500
x450
573D
Bear and Cavalry
data structures
,
divide and conquer
,
dp
3000
x449
232D
Fence
binary search
,
data structures
,
string suffix structures
2900
x441
1535F
String Distance
binary search
,
brute force
,
data structures
,
hashing
,
implementation
,
strings
3000
x438
306B
Optimizer
data structures
,
greedy
,
sortings
2100
x437
1482H
Exam
data structures
,
string suffix structures
,
trees
3400
x434
1801E
Gasoline prices
data structures
,
divide and conquer
,
dsu
,
hashing
,
trees
3000
x433
1725E
Electrical Efficiency
combinatorics
,
data structures
,
dp
,
math
,
number theory
,
trees
2500
x433
226E
Noble Knight's Path
data structures
,
trees
2900
x433
1175G
Yet Another Partiton Problem
data structures
,
divide and conquer
,
dp
,
geometry
,
two pointers
3000
x432
1034D
Intervals of Intervals
binary search
,
data structures
,
two pointers
3500
x432
1386C
Joker
*special problem
,
bitmasks
,
data structures
,
divide and conquer
,
dsu
2800
x430
1610H
Squid Game
data structures
,
dfs and similar
,
greedy
,
trees
3100
x422
860E
Arkady and a Nobody-men
data structures
,
dfs and similar
,
trees
2700
x422
575I
Robots protection
data structures
2800
x422
1912G
Great City Saint Petersburg
data structures
2400
x420
269D
Maximum Waterfall
data structures
,
dp
,
graphs
,
sortings
2600
x420
1936D
Bitwise Paradox
binary search
,
bitmasks
,
data structures
,
greedy
,
two pointers
3100
x419
1763F
Edge Queries
data structures
,
dfs and similar
,
dp
,
dsu
,
graphs
,
trees
3000
x419
855F
Nagini
binary search
,
data structures
3100
x419
799F
Beautiful fountains rows
data structures
3500
x419
1511F
Chainword
brute force
,
data structures
,
dp
,
matrices
,
string suffix structures
,
strings
2700
x418
1193B
Magic Tree
*special problem
,
data structures
,
dp
,
trees
x417
1170D
Decoding of Integer Sequences
*special problem
,
data structures
,
implementation
x417
1656H
Equal LCM Subsets
data structures
,
math
,
number theory
3200
x416
776F
Sherlock's bet to Moriarty
constructive algorithms
,
data structures
,
divide and conquer
,
geometry
,
graphs
,
implementation
,
trees
2800
x415
260E
Dividing Kingdom
binary search
,
brute force
,
data structures
2500
x415
1732E
Location
data structures
,
dp
,
math
,
number theory
2800
x414
1500D
Tiles for Bathroom
data structures
,
sortings
,
two pointers
2900
x414
1866K
Keen Tree Calculation
binary search
,
data structures
,
dp
,
geometry
,
graphs
,
implementation
,
trees
2500
x412
1730F
Almost Sorted
bitmasks
,
data structures
,
dp
2700
x412
1783G
Weighed Tree Radius
data structures
,
divide and conquer
,
implementation
,
trees
2800
x411
1178G
The Awesomest Vertex
data structures
,
dfs and similar
3000
x411
930E
Coins Exhibition
data structures
,
dp
,
math
2900
x409
1920F2
Smooth Sailing (Hard Version)
binary search
,
data structures
,
dsu
,
geometry
,
graphs
,
trees
3000
x407
1495E
Qingshan and Daniel
brute force
,
data structures
,
greedy
,
implementation
3200
x406
1458E
Nim Shortcuts
data structures
,
games
3100
x404
1172F
Nauuo and Bug
data structures
3300
x404
761F
Dasha and Photos
brute force
,
data structures
,
dp
,
implementation
2600
x404
1523G
Try Booking
data structures
,
divide and conquer
3200
x403
198E
Gripping Story
binary search
,
data structures
,
sortings
2400
x403
1583G
Omkar and Time Travel
data structures
,
math
3000
x401
1131G
Most Dangerous Shark
data structures
,
dp
,
two pointers
2700
x400
1388E
Uncle Bogdan and Projections
data structures
,
geometry
,
sortings
2700
x399
1935F
Andrey's Tree
binary search
,
constructive algorithms
,
data structures
,
dfs and similar
,
dsu
,
greedy
,
implementation
,
trees
2800
x398
1455G
Forbidden Value
data structures
,
dp
2900
x398
1368G
Shifting Dominoes
data structures
,
geometry
,
graphs
,
trees
3200
x398
1238G
Adilbek and the Watering System
data structures
,
greedy
,
sortings
2700
x398
1787G
Colorful Tree Again
brute force
,
data structures
,
trees
3000
x396
264E
Roadside Trees
data structures
,
dp
3000
x396
930D
Game with Tokens
data structures
,
games
,
implementation
2500
x394
671E
Organizing a Race
data structures
,
greedy
3300
x394
639F
Bear and Chemistry
data structures
,
dfs and similar
,
graphs
,
trees
3300
x394
263E
Rhombus
brute force
,
data structures
,
dp
2500
x394
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