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Codeforces Round 952 (Div. 4)
08:40:05
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Difficulty:
—
greedy
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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Custom test
Problems
#
Name
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x42352
701A
Cards
greedy
,
implementation
800
x19224
673B
Problems for Round
greedy
,
implementation
1300
x3500
670A
Holidays
brute force
,
constructive algorithms
,
greedy
,
math
900
x16521
665C
Simple Strings
dp
,
greedy
,
strings
1300
x9418
660A
Co-prime Array
greedy
,
implementation
,
math
,
number theory
1200
x8597
659C
Tanya and Toys
greedy
,
implementation
1200
x11393
651B
Beautiful Paintings
greedy
,
sortings
1200
x11409
651A
Joysticks
dp
,
greedy
,
implementation
,
math
1100
x22597
645B
Mischievous Mess Makers
greedy
,
math
1200
x3338
628C
Bear and String Distance
greedy
,
strings
1300
x5714
625B
War of the Corporations
constructive algorithms
,
greedy
,
strings
1200
x10176
624B
Making a String
greedy
,
sortings
1100
x7920
616B
Dinner with Emma
games
,
greedy
1000
x11353
609A
USB Flash Drives
greedy
,
implementation
,
sortings
800
x16877
604B
More Cowbell
binary search
,
greedy
1400
x8287
596B
Wilbur and Array
greedy
,
implementation
1100
x10221
588A
Duff and Meat
greedy
900
x22419
583B
Robot's Task
greedy
,
implementation
1200
x8638
574A
Bear and Elections
greedy
,
implementation
1200
x9002
572B
Order Book
data structures
,
greedy
,
implementation
,
sortings
1300
x6772
570B
Simple Game
constructive algorithms
,
games
,
greedy
,
implementation
,
math
1300
x15813
569B
Inventory
greedy
,
math
1200
x6974
567A
Lineland Mail
greedy
,
implementation
900
x30868
557A
Ilya and Diplomas
greedy
,
implementation
,
math
1100
x8211
556A
Case of the Zeros and Ones
greedy
900
x38233
554B
Ohana Cleans Up
brute force
,
greedy
,
strings
1200
x9731
548B
Mike and Fun
brute force
,
dp
,
greedy
,
implementation
1400
x8305
546B
Soldier and Badges
brute force
,
greedy
,
implementation
,
sortings
1200
x17312
545D
Queue
greedy
,
implementation
,
sortings
1300
x24248
545B
Equidistant String
greedy
1100
x11453
538B
Quasi Binary
constructive algorithms
,
dp
,
greedy
,
implementation
1400
x17685
534B
Covered Path
dp
,
greedy
,
math
1400
x9962
526B
Om Nom and Dark Park
dfs and similar
,
greedy
,
implementation
1400
x4473
525B
Pasha and String
constructive algorithms
,
greedy
,
math
,
strings
1400
x9221
525A
Vitaliy and Pie
greedy
,
hashing
,
strings
1100
x14015
523C
Name Quest
*special problem
,
greedy
1400
x2469
520B
Two Buttons
dfs and similar
,
graphs
,
greedy
,
implementation
,
math
,
shortest paths
1400
x48539
519C
A and B and Team Training
greedy
,
implementation
,
math
,
number theory
1300
x19385
518B
Tanya and Postcard
greedy
,
implementation
,
strings
1400
x7832
515C
Drazil and Factorial
greedy
,
math
,
sortings
1400
x25137
514A
Chewbaсca and Number
greedy
,
implementation
1200
x47054
509B
Painting Pebbles
constructive algorithms
,
greedy
,
implementation
1300
x9539
508B
Anton and currency you all know
greedy
,
math
,
strings
1300
x22187
507A
Amr and Music
greedy
,
implementation
,
sortings
1000
x17438
499A
Watching a movie
greedy
,
implementation
1000
x13752
492C
Vanya and Exams
greedy
,
sortings
1400
x13756
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x56240
489C
Given Length and Sum of Digits...
dp
,
greedy
,
implementation
1400
x44881
489B
BerSU Ball
dfs and similar
,
dp
,
graph matchings
,
greedy
,
sortings
,
two pointers
1200
x47016
489A
SwapSort
greedy
,
implementation
,
sortings
1200
x9862
486B
OR in Matrix
greedy
,
hashing
,
implementation
1300
x17064
485B
Valuable Resources
brute force
,
greedy
1300
x6462
482A
Diverse Permutation
constructive algorithms
,
greedy
1200
x9546
479C
Exams
greedy
,
sortings
1400
x28744
479B
Towers
brute force
,
constructive algorithms
,
greedy
,
implementation
,
sortings
1400
x7573
478B
Random Teams
combinatorics
,
constructive algorithms
,
greedy
,
math
1300
x35543
472C
Design Tutorial: Make It Nondeterministic
greedy
1400
x6321
469A
I Wanna Be the Guy
greedy
,
implementation
800
x92546
462B
Appleman and Card Game
greedy
1300
x14101
461A
Appleman and Toastman
greedy
,
sortings
1200
x15241
447B
DZY Loves Strings
greedy
,
implementation
1000
x20019
445B
DZY Loves Chemistry
dfs and similar
,
dsu
,
greedy
1400
x12187
441B
Valera and Fruits
greedy
,
implementation
1400
x6965
439A
Devu, the Singer and Churu, the Joker
greedy
,
implementation
900
x24971
437C
The Child and Toy
graphs
,
greedy
,
sortings
1400
x13569
435B
Pasha Maximizes
greedy
1400
x6793
432B
Football Kit
brute force
,
greedy
,
implementation
1200
x11527
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x57220
424B
Megacity
binary search
,
greedy
,
implementation
,
sortings
1200
x7375
416A
Guess a number!
greedy
,
implementation
,
two pointers
1400
x8693
413C
Jeopardy!
greedy
,
math
1400
x2310
412B
Network Configuration
greedy
,
sortings
900
x5305
412A
Poster
greedy
,
implementation
900
x4327
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x95636
402A
Nuts
greedy
,
math
1100
x4526
401C
Team
constructive algorithms
,
greedy
,
implementation
1400
x19415
401B
Sereja and Contests
greedy
,
implementation
,
math
1200
x4395
389B
Fox and Cross
greedy
,
implementation
1100
x6830
389A
Fox and Number Game
greedy
,
math
1000
x13887
388A
Fox and Box Accumulation
greedy
,
sortings
1400
x11369
387B
George and Round
brute force
,
greedy
,
two pointers
1200
x11957
385B
Bear and Strings
brute force
,
greedy
,
implementation
,
math
,
strings
1200
x9580
385A
Bear and Raspberry
brute force
,
greedy
,
implementation
1000
x16270
382A
Ksenia and Pan Scales
greedy
,
implementation
1100
x11855
381B
Sereja and Stairs
greedy
,
implementation
,
sortings
1100
x6609
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x61334
379C
New Year Ratings Change
greedy
,
sortings
1400
x6504
371A
K-Periodic Array
greedy
,
implementation
,
math
1000
x5964
369A
Valera and Plates
greedy
,
implementation
900
x10839
363C
Fixing Typos
greedy
,
implementation
1400
x13114
359A
Table
constructive algorithms
,
greedy
,
implementation
1000
x8408
357A
Group of Students
brute force
,
greedy
,
implementation
1000
x6732
355B
Vasya and Public Transport
greedy
,
implementation
1100
x4440
350A
TL
brute force
,
greedy
,
implementation
1200
x16054
349A
Cinema Line
greedy
,
implementation
1100
x28947
342A
Xenia and Divisors
greedy
,
implementation
1200
x12200
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x201335
337B
Routine Problem
greedy
,
math
,
number theory
1400
x9138
337A
Puzzles
greedy
900
x76307
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