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Custom test
Problems
#
Name
946B
Weird Subtraction Process
math
,
number theory
1100
x10726
938B
Run For Your Prize
brute force
,
greedy
1100
x8754
919B
Perfect Number
binary search
,
brute force
,
dp
,
implementation
,
number theory
1100
x27225
911A
Nearest Minimums
implementation
1100
x11344
902A
Visiting a Friend
greedy
,
implementation
1100
x9700
898B
Proper Nutrition
brute force
,
implementation
,
number theory
1100
x9347
884B
Japanese Crosswords Strike Back
implementation
1100
x6808
883M
Quadcopter Competition
greedy
,
math
1100
x3509
877A
Alex and broken contest
implementation
,
strings
1100
x10760
869B
The Eternal Immortality
math
1100
x13069
869A
The Artful Expedient
brute force
,
implementation
1100
x9383
858A
k-rounding
brute force
,
math
,
number theory
1100
x7904
845A
Chess Tourney
implementation
,
sortings
1100
x7650
842B
Gleb And Pizza
geometry
1100
x10126
841B
Godsend
games
,
math
1100
x12070
835B
The number on the board
greedy
1100
x10924
834B
The Festive Evening
data structures
,
implementation
1100
x8570
825A
Binary Protocol
implementation
1100
x7573
813A
The Contest
implementation
1100
x5020
801A
Vicious Keyboard
brute force
1100
x7242
799A
Carrot Cakes
brute force
,
implementation
1100
x18159
797A
k-Factorization
implementation
,
math
,
number theory
1100
x14369
792A
New Bus Route
implementation
,
sortings
1100
x8819
789A
Anastasia and pebbles
implementation
,
math
1100
x9241
785B
Anton and Classes
greedy
,
sortings
1100
x10157
779B
Weird Rounding
brute force
,
greedy
1100
x10231
767A
Snacktower
data structures
,
implementation
1100
x19443
765B
Code obfuscation
greedy
,
implementation
,
strings
1100
x7049
758B
Blown Garland
brute force
,
implementation
,
number theory
1100
x10090
755B
PolandBall and Game
binary search
,
data structures
,
games
,
greedy
,
sortings
,
strings
1100
x11002
754B
Ilya and tic-tac-toe game
brute force
,
implementation
1100
x7180
735B
Urbanization
greedy
,
number theory
,
sortings
1100
x8324
733B
Parade
math
1100
x10619
731B
Coupons and Discounts
constructive algorithms
,
greedy
1100
x7874
723B
Text Document Analysis
expression parsing
,
implementation
,
strings
1100
x10095
721B
Passwords
implementation
,
math
,
sortings
,
strings
1100
x12003
719A
Vitya in the Countryside
implementation
1100
x15446
714A
Meeting of Old Friends
implementation
,
math
1100
x10712
712B
Memory and Trident
implementation
,
strings
1100
x9657
706B
Interesting drink
binary search
,
dp
,
implementation
1100
x59463
705B
Spider Man
games
,
math
1100
x9061
690A1
Collective Mindsets (easy)
1100
x2780
686B
Little Robber Girl's Zoo
constructive algorithms
,
implementation
,
sortings
1100
x7727
682A
Alyona and Numbers
constructive algorithms
,
math
,
number theory
1100
x20832
675A
Infinite Sequence
math
1100
x14791
667B
Coat of Anticubism
constructive algorithms
,
geometry
1100
x5467
667A
Pouring Rain
geometry
,
math
1100
x7821
651A
Joysticks
dp
,
greedy
,
implementation
,
math
1100
x22639
648C
Путь Робота
constructive algorithms
,
dfs and similar
,
graphs
1100
x873
638A
Home Numbers
*special problem
,
constructive algorithms
,
math
1100
x3776
635A
Orchestra
brute force
,
implementation
1100
x2832
633A
Ebony and Ivory
brute force
,
math
,
number theory
1100
x12443
630J
Divisibility
math
,
number theory
1100
x10788
630D
Hexagons!
math
1100
x10116
630C
Lucky Numbers
combinatorics
,
math
1100
x20942
629B
Far Relative’s Problem
brute force
1100
x7963
624B
Making a String
greedy
,
sortings
1100
x7923
618B
Guess the Permutation
constructive algorithms
1100
x7867
609B
The Best Gift
constructive algorithms
,
implementation
1100
x8873
602A
Two Bases
brute force
,
implementation
1100
x8381
596B
Wilbur and Array
greedy
,
implementation
1100
x10226
596A
Wilbur and Swimming Pool
geometry
,
implementation
1100
x7639
592B
The Monster and the Squirrel
math
1100
x8552
581B
Luxurious Houses
implementation
,
math
1100
x12935
570A
Elections
implementation
1100
x13770
558A
Lala Land and Apple Trees
brute force
,
implementation
,
sortings
1100
x10214
557A
Ilya and Diplomas
greedy
,
implementation
,
math
1100
x8211
556B
Case of Fake Numbers
brute force
,
implementation
1100
x7892
548A
Mike and Fax
brute force
,
implementation
,
strings
1100
x9863
545B
Equidistant String
greedy
1100
x11462
544A
Set of Strings
implementation
,
strings
1100
x7851
535B
Tavas and SaDDas
bitmasks
,
brute force
,
combinatorics
,
implementation
1100
x21867
534A
Exam
constructive algorithms
,
implementation
,
math
1100
x12106
527A
Playing with Paper
implementation
,
math
1100
x14208
525A
Vitaliy and Pie
greedy
,
hashing
,
strings
1100
x14048
522B
Photo to Remember
*special problem
,
data structures
,
dp
,
implementation
1100
x8731
519B
A and B and Compilation Errors
data structures
,
implementation
,
sortings
1100
x38182
508A
Pasha and Pixels
brute force
1100
x7810
505A
Mr. Kitayuta's Gift
brute force
,
implementation
,
strings
1100
x6615
501B
Misha and Changing Handles
data structures
,
dsu
,
strings
1100
x15730
495A
Digital Counter
implementation
1100
x8330
488A
Giga Tower
brute force
1100
x14102
483A
Counterexample
brute force
,
implementation
,
math
,
number theory
1100
x22422
478A
Initial Bet
implementation
1100
x25152
475A
Bayan Bus
implementation
1100
x4717
471A
MUH and Sticks
implementation
1100
x13358
467B
Fedor and New Game
bitmasks
,
brute force
,
constructive algorithms
,
implementation
1100
x36481
463B
Caisa and Pylons
brute force
,
implementation
,
math
1100
x26139
456A
Laptops
sortings
1100
x46122
433A
Kitahara Haruki's Gift
brute force
,
implementation
1100
x15898
427B
Prison Transfer
data structures
,
implementation
1100
x13760
405B
Domino Effect
1100
x5646
402A
Nuts
greedy
,
math
1100
x4530
389B
Fox and Cross
greedy
,
implementation
1100
x6832
382A
Ksenia and Pan Scales
greedy
,
implementation
1100
x11879
381B
Sereja and Stairs
greedy
,
implementation
,
sortings
1100
x6615
370A
Rook, Bishop and King
graphs
,
math
,
shortest paths
1100
x9985
368B
Sereja and Suffixes
data structures
,
dp
1100
x39916
366A
Dima and Guards
implementation
1100
x4489
365B
The Fibonacci Segment
implementation
1100
x14106
←
1
2
3
4
→
→ Pay attention
Before contest
Codeforces Round 954 (Div. 3)
5 days
→ 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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