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Custom test
Problems
#
Name
604A
Uncowed Forces
implementation
1000
x8826
603E
Pastoral Oddities
data structures
,
divide and conquer
,
dsu
,
math
,
trees
3000
x1149
603D
Ruminations on Ruminants
geometry
,
math
2900
x337
603C
Lieges of Legendre
games
,
math
2200
x1807
603B
Moodular Arithmetic
combinatorics
,
dfs and similar
,
dsu
,
math
,
number theory
1800
x2533
603A
Alternative Thinking
dp
,
greedy
,
math
1600
x7531
602B
Approximating a Constant Range
dp
,
implementation
,
two pointers
1400
x10388
602A
Two Bases
brute force
,
implementation
1100
x8346
601E
A Museum Robbery
data structures
,
dp
2800
x797
601D
Acyclic Organic Compounds
data structures
,
dfs and similar
,
dsu
,
hashing
,
strings
,
trees
2400
x1088
601C
Kleofáš and the n-thlon
dp
,
math
,
probabilities
2300
x1284
601B
Lipshitz Sequence
data structures
,
math
2100
x2001
601A
The Two Routes
graphs
,
shortest paths
1600
x11398
600F
Edge coloring of bipartite graph
graphs
2800
x725
600E
Lomsat gelral
data structures
,
dfs and similar
,
dsu
,
trees
2300
x12586
600D
Area of Two Circles' Intersection
geometry
2000
x2132
600C
Make Palindrome
constructive algorithms
,
greedy
,
strings
1800
x5624
600B
Queries about less or equal elements
binary search
,
data structures
,
sortings
,
two pointers
1300
x27265
600A
Extract Numbers
implementation
,
strings
1600
x4844
599E
Sandy and Nuts
bitmasks
,
dp
,
trees
2600
x616
599D
Spongebob and Squares
brute force
,
math
1900
x2530
599C
Day at the Beach
sortings
1600
x4557
599B
Spongebob and Joke
implementation
1500
x4327
599A
Patrick and Shopping
implementation
800
x27755
598F
Cut Length
geometry
2900
x354
598E
Chocolate Bar
brute force
,
dp
2000
x4450
598D
Igor In the Museum
dfs and similar
,
graphs
,
shortest paths
1700
x10312
598C
Nearest vectors
geometry
,
sortings
2300
x3941
598B
Queries on a String
implementation
,
strings
1300
x10418
598A
Tricky Sum
math
900
x24749
597C
Subsequences
data structures
,
dp
1900
x4504
597B
Restaurant
dp
,
greedy
,
sortings
1600
x4630
597A
Divisibility
math
1600
x4408
596E
Wilbur and Strings
dfs and similar
,
dp
,
graphs
,
strings
2500
x388
596D
Wilbur and Trees
dp
,
math
,
probabilities
,
sortings
2300
x672
596C
Wilbur and Points
combinatorics
,
greedy
,
sortings
1700
x2234
596B
Wilbur and Array
greedy
,
implementation
1100
x10184
596A
Wilbur and Swimming Pool
geometry
,
implementation
1100
x7594
595B
Pasha and Phone
binary search
,
math
1600
x2893
595A
Vitaly and Night
constructive algorithms
,
implementation
800
x14345
594E
Cutting the Line
string suffix structures
,
strings
3100
x155
594D
REQ
data structures
,
number theory
2500
x1503
594C
Edo and Magnets
brute force
,
greedy
,
implementation
,
two pointers
2300
x673
594B
Max and Bike
binary search
,
geometry
2500
x475
594A
Warrior and Archer
games
2300
x1693
593E
Strange Calculation and Cats
dp
,
matrices
2400
x399
593D
Happy Tree Party
data structures
,
dfs and similar
,
graphs
,
math
,
trees
2400
x1178
593C
Beautiful Function
constructive algorithms
,
math
2200
x272
593B
Anton and Lines
geometry
,
sortings
1600
x3940
593A
2Char
brute force
,
implementation
1200
x5670
592E
BCPC
binary search
,
geometry
,
two pointers
2700
x208
592D
Super M
dfs and similar
,
dp
,
graphs
,
trees
2200
x2353
592C
The Big Race
math
1800
x3035
592B
The Monster and the Squirrel
math
1100
x8537
592A
PawnChess
implementation
1200
x6301
591B
Rebranding
implementation
,
strings
1200
x8126
591A
Wizards' Duel
implementation
,
math
900
x13870
590E
Birthday
graph matchings
,
strings
3200
x742
590D
Top Secret Task
dp
2300
x1140
590C
Three States
dfs and similar
,
graphs
,
shortest paths
2200
x2604
590B
Chip 'n Dale Rescue Rangers
binary search
,
geometry
,
math
2100
x1693
590A
Median Smoothing
implementation
1700
x3892
588B
Duff in Love
math
1300
x13820
588A
Duff and Meat
greedy
900
x22311
587F
Duff is Mad
data structures
,
strings
3000
x989
587E
Duff as a Queen
data structures
2900
x684
587D
Duff in Mafia
2-sat
,
binary search
3100
x665
587C
Duff in the Army
data structures
,
trees
2200
x3671
587B
Duff in Beach
dp
2100
x1376
587A
Duff and Weight Lifting
greedy
1500
x7354
586B
Laurenty and Shop
implementation
1300
x5111
586A
Alena's Schedule
implementation
900
x9886
585F
Digits of Number Pi
dp
,
implementation
,
strings
3200
x635
585E
Present for Vitalik the Philatelist
combinatorics
,
math
,
number theory
2900
x1040
585D
Lizard Era: Beginning
meet-in-the-middle
2300
x1573
585C
Alice, Bob, Oranges and Apples
number theory
2400
x961
585B
Phillip and Trains
dfs and similar
,
graphs
,
shortest paths
1700
x3482
585A
Gennady the Dentist
brute force
,
implementation
1800
x4110
584E
Anton and Ira
constructive algorithms
,
greedy
,
math
2300
x1393
584D
Dima and Lisa
brute force
,
math
,
number theory
1800
x8797
584C
Marina and Vasya
constructive algorithms
,
greedy
,
strings
1700
x6061
584B
Kolya and Tanya
combinatorics
1500
x11566
584A
Olesya and Rodion
math
1000
x42687
583B
Robot's Task
greedy
,
implementation
1200
x8615
583A
Asphalting Roads
implementation
1000
x11251
582E
Boolean Function
bitmasks
,
dp
,
expression parsing
3000
x475
582D
Number of Binominal Coefficients
dp
,
math
,
number theory
3300
x605
582C
Superior Periodic Subarrays
number theory
2400
x725
582B
Once Again...
constructive algorithms
,
dp
,
matrices
1900
x3302
582A
GCD Table
constructive algorithms
,
greedy
,
number theory
1700
x7533
581F
Zublicanes and Mumocrates
dp
,
trees
,
two pointers
2400
x844
581E
Kojiro and Furrari
dp
,
greedy
2800
x186
581D
Three Logos
bitmasks
,
brute force
,
constructive algorithms
,
geometry
,
implementation
,
math
1700
x3411
581C
Developing Skills
implementation
,
math
,
sortings
1400
x7239
581B
Luxurious Houses
implementation
,
math
1100
x12878
581A
Vasya the Hipster
implementation
,
math
800
x66864
580E
Kefa and Watch
data structures
,
hashing
,
strings
2500
x1934
580D
Kefa and Dishes
bitmasks
,
dp
1800
x9120
580C
Kefa and Park
dfs and similar
,
graphs
,
trees
1500
x39591
580B
Kefa and Company
binary search
,
sortings
,
two pointers
1500
x24816
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→ Pay attention
Before contest
Codeforces Round 941 (Div. 1)
46:53:35
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*has extra registration
Before contest
Codeforces Round 941 (Div. 2)
46:53:35
Register now »
*has extra registration
→ 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
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