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Codeforces Round 1134 (Div. 4)
3 days
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combine-tags-by-or
*combine tags by OR
2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
communication
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
622A
Infinite Sequence
implementation
,
math
1000
x10400
621A
Wet Shark and Odd and Even
implementation
900
x23424
620B
Grandfather Dovlet’s calculator
implementation
1000
x10704
620A
Professor GukiZ's Robot
implementation
,
math
800
x14915
618A
Slime Combining
implementation
800
x8945
617A
Elephant
math
800
x272507
616B
Dinner with Emma
games
,
greedy
1000
x13468
616A
Comparing Two Long Integers
implementation
,
strings
900
x11081
615A
Bulbs
implementation
800
x21083
611A
New Year and Days
implementation
900
x12288
610A
Pasha and Stick
combinatorics
,
math
1000
x28750
609A
USB Flash Drives
greedy
,
implementation
,
sortings
800
x19896
608A
Saitama Destroys Hotel
implementation
,
math
1000
x10106
604A
Uncowed Forces
implementation
1000
x9506
599A
Patrick and Shopping
implementation
800
x32090
598A
Tricky Sum
math
900
x34069
595A
Vitaly and Night
constructive algorithms
,
implementation
800
x15683
591A
Wizards' Duel
implementation
,
math
900
x17954
588A
Duff and Meat
greedy
900
x24779
586A
Alena's Schedule
implementation
900
x10695
584A
Olesya and Rodion
math
1000
x54815
583A
Asphalting Roads
implementation
1000
x11839
581A
Vasya the Hipster
implementation
,
math
800
x88865
580A
Kefa and First Steps
brute force
,
dp
,
implementation
900
x112949
579A
Raising Bacteria
bitmasks
1000
x84886
577A
Multiplication Table
implementation
,
number theory
1000
x46802
572A
Arrays
sortings
900
x18840
567A
Lineland Mail
greedy
,
implementation
900
x36889
560A
Currency System in Geraldion
implementation
,
sortings
1000
x20271
556A
Case of the Zeros and Ones
greedy
900
x48260
554A
Kyoya and Photobooks
brute force
,
math
,
strings
900
x14756
552A
Vanya and Table
implementation
,
math
1000
x10343
551A
GukiZ and Contest
brute force
,
implementation
,
sortings
800
x18109
549A
Face Detection
implementation
,
strings
900
x10377
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x255139
545A
Toy Cars
implementation
900
x12282
540A
Combination Lock
implementation
800
x35943
535A
Tavas and Nafas
brute force
,
implementation
1000
x13228
520A
Pangram
implementation
,
strings
800
x136661
519A
A and B and Chess
implementation
900
x20396
515A
Drazil and Date
math
1000
x22528
513A
Game
constructive algorithms
,
math
800
x22095
510A
Fox And Snake
implementation
800
x112507
509A
Maximum in Table
brute force
,
implementation
800
x45478
507A
Amr and Music
greedy
,
implementation
,
sortings
1000
x22584
501A
Contest
implementation
900
x24628
500A
New Year Transportation
dfs and similar
,
graphs
,
implementation
1000
x66293
499B
Lecture
implementation
,
strings
1000
x46310
499A
Watching a movie
greedy
,
implementation
1000
x14912
496A
Minimum Difficulty
brute force
,
implementation
,
math
900
x17359
492A
Vanya and Cubes
implementation
800
x66640
491A
Up the hill
constructive algorithms
,
implementation
1000
x3666
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x74918
486A
Calculating Function
implementation
,
math
800
x166869
479A
Expression
brute force
,
math
1000
x118275
476A
Dreamoon and Stairs
implementation
,
math
1000
x53759
474A
Keyboard
implementation
900
x58282
472A
Design Tutorial: Learn from Math
math
,
number theory
800
x73383
469A
I Wanna Be the Guy
greedy
,
implementation
800
x128751
467A
George and Accommodation
implementation
800
x166232
465B
Inbox (100500)
implementation
1000
x11025
465A
inc ARG
implementation
900
x10563
462A
Appleman and Easy Task
brute force
,
implementation
1000
x18183
460A
Vasya and Socks
brute force
,
implementation
,
math
900
x53762
454A
Little Pony and Crystal Mine
implementation
800
x16489
452A
Eevee
brute force
,
implementation
,
strings
1000
x8662
451A
Game With Sticks
implementation
900
x78737
450A
Jzzhu and Children
implementation
1000
x48173
448A
Rewards
implementation
800
x26366
447B
DZY Loves Strings
greedy
,
implementation
1000
x21251
447A
DZY Loves Hash
implementation
800
x10432
443A
Anton and Letters
constructive algorithms
,
implementation
800
x119519
441A
Valera and Antique Items
implementation
1000
x19572
440A
Forgotten Episode
implementation
800
x9237
439A
Devu, the Singer and Churu, the Joker
greedy
,
implementation
900
x26866
435A
Queue on Bus Stop
implementation
1000
x11427
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x72102
431A
Black Square
implementation
800
x69341
427A
Police Recruits
implementation
800
x102998
426A
Sereja and Mugs
implementation
800
x10208
424A
Squats
implementation
900
x9456
421A
Pasha and Hamsters
constructive algorithms
,
implementation
800
x7114
420A
Start Up
implementation
1000
x7398
415A
Mashmokh and Lights
implementation
900
x9735
412B
Network Configuration
greedy
,
sortings
900
x6620
412A
Poster
greedy
,
implementation
900
x5161
411A
Password Check
*special problem
,
implementation
800
x8329
408A
Line to Cashier
implementation
900
x12203
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x134042
404A
Valera and X
implementation
1000
x26675
401A
Vanya and Cards
implementation
,
math
800
x17689
400A
Inna and Choose Options
implementation
1000
x6968
389A
Fox and Number Game
greedy
,
math
1000
x15145
387A
George and Sleep
implementation
900
x10710
386A
Second-Price Auction
implementation
800
x7991
385A
Bear and Raspberry
brute force
,
greedy
,
implementation
1000
x17495
384A
Coder
implementation
800
x17553
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x98177
379A
New Year Candles
implementation
1000
x55216
378A
Playing with Dice
brute force
800
x26456
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