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Rayan
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Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
5 days
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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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Problems
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Custom test
Problems
#
Name
710A
King Moves
implementation
800
x13861
709A
Juicer
implementation
900
x32632
707A
Brain's Photos
implementation
800
x49646
706A
Beru-taxi
brute force
,
geometry
,
implementation
900
x14532
705A
Hulk
implementation
800
x108514
703A
Mishka and Game
implementation
800
x57302
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x45613
701A
Cards
greedy
,
implementation
800
x19693
697A
Pineapple Incident
implementation
,
math
900
x12829
688A
Opponents
implementation
800
x14027
686A
Free Ice Cream
constructive algorithms
,
implementation
800
x38000
681A
A Good Contest
implementation
800
x15556
680A
Bear and Five Cards
constructive algorithms
,
implementation
800
x12552
678A
Johny Likes Numbers
implementation
,
math
800
x13374
677A
Vanya and Fence
implementation
800
x144099
676A
Nicholas and Permutation
constructive algorithms
,
implementation
800
x13857
673A
Bear and Game
implementation
800
x10091
672A
Summer Camp
implementation
800
x15380
670A
Holidays
brute force
,
constructive algorithms
,
greedy
,
math
900
x17088
669A
Little Artem and Presents
math
800
x10860
664A
Complicated GCD
math
,
number theory
800
x18414
658A
Bear and Reverse Radewoosh
implementation
800
x7101
653A
Bear and Three Balls
brute force
,
implementation
,
sortings
900
x8253
648B
Собери стол
constructive algorithms
,
sortings
800
x1551
648A
Наибольший подъем
constructive algorithms
,
implementation
900
x716
631A
Interview
brute force
,
implementation
900
x9341
630A
Again Twenty Five!
number theory
800
x70058
629A
Far Relative’s Birthday Cake
brute force
,
combinatorics
,
constructive algorithms
,
implementation
800
x13483
624A
Save Luke
math
800
x10389
622B
The Time
implementation
900
x9681
621A
Wet Shark and Odd and Even
implementation
900
x20730
620A
Professor GukiZ's Robot
implementation
,
math
800
x13296
618A
Slime Combining
implementation
800
x8365
617A
Elephant
math
800
x190275
616A
Comparing Two Long Integers
implementation
,
strings
900
x9960
615A
Bulbs
implementation
800
x17519
611A
New Year and Days
implementation
900
x11667
609A
USB Flash Drives
greedy
,
implementation
,
sortings
800
x17461
599A
Patrick and Shopping
implementation
800
x29245
598A
Tricky Sum
math
900
x26894
595A
Vitaly and Night
constructive algorithms
,
implementation
800
x14566
591A
Wizards' Duel
implementation
,
math
900
x14594
588A
Duff and Meat
greedy
900
x23001
586A
Alena's Schedule
implementation
900
x10153
581A
Vasya the Hipster
implementation
,
math
800
x72096
580A
Kefa and First Steps
brute force
,
dp
,
implementation
900
x89384
572A
Arrays
sortings
900
x16664
567A
Lineland Mail
greedy
,
implementation
900
x32546
556A
Case of the Zeros and Ones
greedy
900
x40363
554A
Kyoya and Photobooks
brute force
,
math
,
strings
900
x13293
551A
GukiZ and Contest
brute force
,
implementation
,
sortings
800
x16431
549A
Face Detection
implementation
,
strings
900
x9490
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x186098
545A
Toy Cars
implementation
900
x11643
540A
Combination Lock
implementation
800
x32850
520A
Pangram
implementation
,
strings
800
x99507
519A
A and B and Chess
implementation
900
x19061
513A
Game
constructive algorithms
,
math
800
x20486
510A
Fox And Snake
implementation
800
x85196
509A
Maximum in Table
brute force
,
implementation
800
x38702
501A
Contest
implementation
900
x22881
496A
Minimum Difficulty
brute force
,
implementation
,
math
900
x16500
492A
Vanya and Cubes
implementation
800
x51343
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x60064
486A
Calculating Function
implementation
,
math
800
x121133
474A
Keyboard
implementation
900
x46123
472A
Design Tutorial: Learn from Math
math
,
number theory
800
x60833
469A
I Wanna Be the Guy
greedy
,
implementation
800
x99312
467A
George and Accommodation
implementation
800
x124532
465A
inc ARG
implementation
900
x10076
460A
Vasya and Socks
brute force
,
implementation
,
math
900
x46472
454A
Little Pony and Crystal Mine
implementation
800
x14901
451A
Game With Sticks
implementation
900
x66396
448A
Rewards
implementation
800
x24537
447A
DZY Loves Hash
implementation
800
x9622
443A
Anton and Letters
constructive algorithms
,
implementation
800
x91097
440A
Forgotten Episode
implementation
800
x7528
439A
Devu, the Singer and Churu, the Joker
greedy
,
implementation
900
x25400
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x60713
431A
Black Square
implementation
800
x55696
427A
Police Recruits
implementation
800
x79482
426A
Sereja and Mugs
implementation
800
x9256
424A
Squats
implementation
900
x8516
421A
Pasha and Hamsters
constructive algorithms
,
implementation
800
x6129
415A
Mashmokh and Lights
implementation
900
x9030
412B
Network Configuration
greedy
,
sortings
900
x5449
412A
Poster
greedy
,
implementation
900
x4475
411A
Password Check
*special problem
,
implementation
800
x7283
408A
Line to Cashier
implementation
900
x11303
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x102871
401A
Vanya and Cards
implementation
,
math
800
x16332
387A
George and Sleep
implementation
900
x9717
386A
Second-Price Auction
implementation
800
x6458
384A
Coder
implementation
800
x16369
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x67519
378A
Playing with Dice
brute force
800
x24266
376A
Lever
implementation
,
math
900
x9369
373A
Collecting Beats is Fun
implementation
900
x10734
369A
Valera and Plates
greedy
,
implementation
900
x11108
363A
Soroban
implementation
800
x10813
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