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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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Status
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Custom test
Problems
#
Name
608A
Saitama Destroys Hotel
implementation
,
math
1000
x9374
604A
Uncowed Forces
implementation
1000
x9001
599A
Patrick and Shopping
implementation
800
x29232
598A
Tricky Sum
math
900
x26865
595A
Vitaly and Night
constructive algorithms
,
implementation
800
x14564
591A
Wizards' Duel
implementation
,
math
900
x14588
588A
Duff and Meat
greedy
900
x22981
586A
Alena's Schedule
implementation
900
x10153
584A
Olesya and Rodion
math
1000
x45683
583A
Asphalting Roads
implementation
1000
x11460
581A
Vasya the Hipster
implementation
,
math
800
x72051
580A
Kefa and First Steps
brute force
,
dp
,
implementation
900
x89320
579A
Raising Bacteria
bitmasks
1000
x62112
577A
Multiplication Table
implementation
,
number theory
1000
x40205
572A
Arrays
sortings
900
x16663
567A
Lineland Mail
greedy
,
implementation
900
x32528
560A
Currency System in Geraldion
implementation
,
sortings
1000
x17221
556A
Case of the Zeros and Ones
greedy
900
x40338
554A
Kyoya and Photobooks
brute force
,
math
,
strings
900
x13291
552A
Vanya and Table
implementation
,
math
1000
x9604
551A
GukiZ and Contest
brute force
,
implementation
,
sortings
800
x16426
549A
Face Detection
implementation
,
strings
900
x9488
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x185789
545A
Toy Cars
implementation
900
x11638
540A
Combination Lock
implementation
800
x32835
535A
Tavas and Nafas
brute force
,
implementation
1000
x12226
520A
Pangram
implementation
,
strings
800
x99314
519A
A and B and Chess
implementation
900
x19057
515A
Drazil and Date
math
1000
x20401
513A
Game
constructive algorithms
,
math
800
x20477
510A
Fox And Snake
implementation
800
x85086
509A
Maximum in Table
brute force
,
implementation
800
x38682
507A
Amr and Music
greedy
,
implementation
,
sortings
1000
x18551
501A
Contest
implementation
900
x22877
500A
New Year Transportation
dfs and similar
,
graphs
,
implementation
1000
x53712
499B
Lecture
implementation
,
strings
1000
x39678
499A
Watching a movie
greedy
,
implementation
1000
x13985
496A
Minimum Difficulty
brute force
,
implementation
,
math
900
x16486
492A
Vanya and Cubes
implementation
800
x51299
491A
Up the hill
constructive algorithms
,
implementation
1000
x2955
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x60038
486A
Calculating Function
implementation
,
math
800
x121000
479A
Expression
brute force
,
math
1000
x95328
476A
Dreamoon and Stairs
implementation
,
math
1000
x44384
474A
Keyboard
implementation
900
x46093
472A
Design Tutorial: Learn from Math
math
,
number theory
800
x60803
469A
I Wanna Be the Guy
greedy
,
implementation
800
x99200
467A
George and Accommodation
implementation
800
x124418
465B
Inbox (100500)
implementation
1000
x10453
465A
inc ARG
implementation
900
x10075
462A
Appleman and Easy Task
brute force
,
implementation
1000
x16960
460A
Vasya and Socks
brute force
,
implementation
,
math
900
x46441
454A
Little Pony and Crystal Mine
implementation
800
x14898
452A
Eevee
brute force
,
implementation
,
strings
1000
x8025
451A
Game With Sticks
implementation
900
x66360
450A
Jzzhu and Children
implementation
1000
x35095
448A
Rewards
implementation
800
x24534
447B
DZY Loves Strings
greedy
,
implementation
1000
x20333
447A
DZY Loves Hash
implementation
800
x9620
443A
Anton and Letters
constructive algorithms
,
implementation
800
x91005
441A
Valera and Antique Items
implementation
1000
x18543
440A
Forgotten Episode
implementation
800
x7521
439A
Devu, the Singer and Churu, the Joker
greedy
,
implementation
900
x25396
435A
Queue on Bus Stop
implementation
1000
x10193
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x60679
431A
Black Square
implementation
800
x55666
427A
Police Recruits
implementation
800
x79403
426A
Sereja and Mugs
implementation
800
x9255
424A
Squats
implementation
900
x8513
421A
Pasha and Hamsters
constructive algorithms
,
implementation
800
x6125
420A
Start Up
implementation
1000
x6253
415A
Mashmokh and Lights
implementation
900
x9026
412B
Network Configuration
greedy
,
sortings
900
x5445
412A
Poster
greedy
,
implementation
900
x4475
411A
Password Check
*special problem
,
implementation
800
x7282
408A
Line to Cashier
implementation
900
x11289
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x102773
404A
Valera and X
implementation
1000
x24092
401A
Vanya and Cards
implementation
,
math
800
x16328
400A
Inna and Choose Options
implementation
1000
x6530
389A
Fox and Number Game
greedy
,
math
1000
x14104
387A
George and Sleep
implementation
900
x9716
386A
Second-Price Auction
implementation
800
x6450
385A
Bear and Raspberry
brute force
,
greedy
,
implementation
1000
x16524
384A
Coder
implementation
800
x16350
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x67424
379A
New Year Candles
implementation
1000
x46693
378A
Playing with Dice
brute force
800
x24255
376A
Lever
implementation
,
math
900
x9368
373A
Collecting Beats is Fun
implementation
900
x10729
371A
K-Periodic Array
greedy
,
implementation
,
math
1000
x6131
369A
Valera and Plates
greedy
,
implementation
900
x11100
368A
Sereja and Coat Rack
implementation
1000
x7520
363A
Soroban
implementation
800
x10811
361A
Levko and Table
constructive algorithms
,
implementation
800
x16777
359A
Table
constructive algorithms
,
greedy
,
implementation
1000
x8575
357A
Group of Students
brute force
,
greedy
,
implementation
1000
x6859
352A
Jeff and Digits
brute force
,
implementation
,
math
1000
x25853
344A
Magnets
implementation
800
x122623
339B
Xenia and Ringroad
implementation
1000
x70474
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