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Codeforces Round 961 (Div. 2)
00:59:28
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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
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Problems
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Status
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Custom test
Problems
#
Name
608A
Saitama Destroys Hotel
implementation
,
math
1000
x9198
607E
Cross Sum
binary search
,
geometry
3300
x250
607D
Power Tree
data structures
,
trees
2600
x563
607C
Marbles
hashing
,
strings
2500
x782
607B
Zuma
dp
1900
x11480
607A
Chain Reaction
binary search
,
dp
1600
x9441
606B
Testing Robots
implementation
1600
x2737
606A
Magic Spheres
implementation
1200
x7925
605E
Intergalaxy Trips
probabilities
,
shortest paths
2700
x1360
605D
Board Game
data structures
,
dfs and similar
2500
x795
605C
Freelancer's Dreams
geometry
2400
x1104
605B
Lazy Student
constructive algorithms
,
data structures
,
graphs
1700
x3407
605A
Sorting Railway Cars
constructive algorithms
,
greedy
1600
x7071
604B
More Cowbell
binary search
,
greedy
1400
x8347
604A
Uncowed Forces
implementation
1000
x8915
603E
Pastoral Oddities
data structures
,
divide and conquer
,
dsu
,
math
,
trees
3000
x1209
603D
Ruminations on Ruminants
geometry
,
math
2900
x340
603C
Lieges of Legendre
games
,
math
2200
x1823
603B
Moodular Arithmetic
combinatorics
,
dfs and similar
,
dsu
,
math
,
number theory
1800
x2551
603A
Alternative Thinking
dp
,
greedy
,
math
1600
x7599
602B
Approximating a Constant Range
dp
,
implementation
,
two pointers
1400
x10627
602A
Two Bases
brute force
,
implementation
1100
x8409
601E
A Museum Robbery
data structures
,
dp
2800
x851
601D
Acyclic Organic Compounds
data structures
,
dfs and similar
,
dsu
,
hashing
,
strings
,
trees
2400
x1101
601C
Kleofáš and the n-thlon
dp
,
math
,
probabilities
2300
x1295
601B
Lipshitz Sequence
data structures
,
math
2100
x2272
601A
The Two Routes
graphs
,
shortest paths
1600
x11644
600F
Edge coloring of bipartite graph
graphs
2800
x761
600E
Lomsat gelral
data structures
,
dfs and similar
,
dsu
,
trees
2300
x13154
600D
Area of Two Circles' Intersection
geometry
2000
x2198
600C
Make Palindrome
constructive algorithms
,
greedy
,
strings
1800
x5960
600B
Queries about less or equal elements
binary search
,
data structures
,
sortings
,
two pointers
1300
x28533
600A
Extract Numbers
implementation
,
strings
1600
x5128
599E
Sandy and Nuts
bitmasks
,
dp
,
trees
2600
x627
599D
Spongebob and Squares
brute force
,
math
1900
x2541
599C
Day at the Beach
sortings
1600
x4608
599B
Spongebob and Joke
implementation
1500
x4352
599A
Patrick and Shopping
implementation
800
x28259
598F
Cut Length
geometry
2900
x362
598E
Chocolate Bar
brute force
,
dp
2000
x4760
598D
Igor In the Museum
dfs and similar
,
graphs
,
shortest paths
1700
x10772
598C
Nearest vectors
geometry
,
sortings
2300
x4245
598B
Queries on a String
implementation
,
strings
1300
x10742
598A
Tricky Sum
math
900
x25494
597C
Subsequences
data structures
,
dp
1900
x4747
597B
Restaurant
dp
,
greedy
,
sortings
1600
x4722
597A
Divisibility
math
1600
x4449
596E
Wilbur and Strings
dfs and similar
,
dp
,
graphs
,
strings
2500
x390
596D
Wilbur and Trees
dp
,
math
,
probabilities
,
sortings
2300
x681
596C
Wilbur and Points
combinatorics
,
greedy
,
sortings
1700
x2242
596B
Wilbur and Array
greedy
,
implementation
1100
x10277
596A
Wilbur and Swimming Pool
geometry
,
implementation
1100
x7665
595B
Pasha and Phone
binary search
,
math
1600
x2902
595A
Vitaly and Night
constructive algorithms
,
implementation
800
x14444
594E
Cutting the Line
string suffix structures
,
strings
3100
x158
594D
REQ
data structures
,
number theory
2500
x1570
594C
Edo and Magnets
brute force
,
greedy
,
implementation
,
two pointers
2300
x678
594B
Max and Bike
binary search
,
geometry
2500
x495
594A
Warrior and Archer
games
2300
x1705
593E
Strange Calculation and Cats
dp
,
matrices
2400
x586
593D
Happy Tree Party
data structures
,
dfs and similar
,
graphs
,
math
,
trees
2400
x1219
593C
Beautiful Function
constructive algorithms
,
math
2200
x279
593B
Anton and Lines
geometry
,
sortings
1600
x3962
593A
2Char
brute force
,
implementation
1200
x5699
592E
BCPC
binary search
,
geometry
,
two pointers
2700
x213
592D
Super M
dfs and similar
,
dp
,
graphs
,
trees
2200
x2558
592C
The Big Race
math
1800
x3052
592B
The Monster and the Squirrel
math
1100
x8569
592A
PawnChess
implementation
1200
x6322
591B
Rebranding
implementation
,
strings
1200
x8180
591A
Wizards' Duel
implementation
,
math
900
x14044
590E
Birthday
graph matchings
,
strings
3200
x762
590D
Top Secret Task
dp
2300
x1172
590C
Three States
dfs and similar
,
graphs
,
shortest paths
2200
x2712
590B
Chip 'n Dale Rescue Rangers
binary search
,
geometry
,
math
2100
x1890
590A
Median Smoothing
implementation
1700
x3906
588B
Duff in Love
math
1300
x13960
588A
Duff and Meat
greedy
900
x22615
587F
Duff is Mad
data structures
,
strings
3000
x1010
587E
Duff as a Queen
data structures
2900
x695
587D
Duff in Mafia
2-sat
,
binary search
3100
x684
587C
Duff in the Army
data structures
,
trees
2200
x3753
587B
Duff in Beach
dp
2100
x1385
587A
Duff and Weight Lifting
greedy
1500
x7446
586B
Laurenty and Shop
implementation
1300
x5133
586A
Alena's Schedule
implementation
900
x9953
585F
Digits of Number Pi
dp
,
implementation
,
strings
3200
x641
585E
Present for Vitalik the Philatelist
combinatorics
,
math
,
number theory
2900
x1054
585D
Lizard Era: Beginning
meet-in-the-middle
2300
x1594
585C
Alice, Bob, Oranges and Apples
number theory
2400
x971
585B
Phillip and Trains
dfs and similar
,
graphs
,
shortest paths
1700
x3503
585A
Gennady the Dentist
brute force
,
implementation
1800
x4312
584E
Anton and Ira
constructive algorithms
,
greedy
,
math
2300
x1415
584D
Dima and Lisa
brute force
,
math
,
number theory
1800
x9111
584C
Marina and Vasya
constructive algorithms
,
greedy
,
strings
1700
x6154
584B
Kolya and Tanya
combinatorics
1500
x11801
584A
Olesya and Rodion
math
1000
x43972
583B
Robot's Task
greedy
,
implementation
1200
x8659
583A
Asphalting Roads
implementation
1000
x11287
582E
Boolean Function
bitmasks
,
dp
,
expression parsing
3000
x482
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