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Codeforces Round 968 (Div. 2)
32:14:30
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Difficulty:
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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
588A
Duff and Meat
greedy
900
x22708
586A
Alena's Schedule
implementation
900
x9972
581A
Vasya the Hipster
implementation
,
math
800
x69709
580A
Kefa and First Steps
brute force
,
dp
,
implementation
900
x86887
572A
Arrays
sortings
900
x16495
567A
Lineland Mail
greedy
,
implementation
900
x31679
556A
Case of the Zeros and Ones
greedy
900
x39162
554A
Kyoya and Photobooks
brute force
,
math
,
strings
900
x13140
551A
GukiZ and Contest
brute force
,
implementation
,
sortings
800
x16203
549A
Face Detection
implementation
,
strings
900
x9433
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x176631
545A
Toy Cars
implementation
900
x11547
540A
Combination Lock
implementation
800
x32235
520A
Pangram
implementation
,
strings
800
x94981
519A
A and B and Chess
implementation
900
x18897
513A
Game
constructive algorithms
,
math
800
x20119
510A
Fox And Snake
implementation
800
x81569
509A
Maximum in Table
brute force
,
implementation
800
x37968
501A
Contest
implementation
900
x22609
496A
Minimum Difficulty
brute force
,
implementation
,
math
900
x16295
492A
Vanya and Cubes
implementation
800
x49156
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x58139
486A
Calculating Function
implementation
,
math
800
x115071
474A
Keyboard
implementation
900
x44559
472A
Design Tutorial: Learn from Math
math
,
number theory
800
x58978
469A
I Wanna Be the Guy
greedy
,
implementation
800
x95621
467A
George and Accommodation
implementation
800
x119295
465A
inc ARG
implementation
900
x10003
460A
Vasya and Socks
brute force
,
implementation
,
math
900
x45364
454A
Little Pony and Crystal Mine
implementation
800
x14735
451A
Game With Sticks
implementation
900
x64717
448A
Rewards
implementation
800
x24120
447A
DZY Loves Hash
implementation
800
x9547
443A
Anton and Letters
constructive algorithms
,
implementation
800
x87895
440A
Forgotten Episode
implementation
800
x7240
439A
Devu, the Singer and Churu, the Joker
greedy
,
implementation
900
x25192
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x58646
431A
Black Square
implementation
800
x53841
427A
Police Recruits
implementation
800
x76185
426A
Sereja and Mugs
implementation
800
x9113
424A
Squats
implementation
900
x8347
421A
Pasha and Hamsters
constructive algorithms
,
implementation
800
x5944
415A
Mashmokh and Lights
implementation
900
x8926
412B
Network Configuration
greedy
,
sortings
900
x5377
412A
Poster
greedy
,
implementation
900
x4394
411A
Password Check
*special problem
,
implementation
800
x7171
408A
Line to Cashier
implementation
900
x11172
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x98974
401A
Vanya and Cards
implementation
,
math
800
x16082
387A
George and Sleep
implementation
900
x9638
386A
Second-Price Auction
implementation
800
x6173
384A
Coder
implementation
800
x16057
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x64041
378A
Playing with Dice
brute force
800
x23558
376A
Lever
implementation
,
math
900
x9293
373A
Collecting Beats is Fun
implementation
900
x10617
369A
Valera and Plates
greedy
,
implementation
900
x10989
363A
Soroban
implementation
800
x10681
361A
Levko and Table
constructive algorithms
,
implementation
800
x16547
344A
Magnets
implementation
800
x117527
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x208588
337A
Puzzles
greedy
900
x78213
330A
Cakeminator
brute force
,
implementation
800
x28169
320A
Magic Numbers
brute force
,
greedy
900
x35119
318A
Even Odds
math
900
x111197
313A
Ilya and Bank Account
implementation
,
number theory
900
x55431
306A
Candies
implementation
800
x6722
302A
Eugeny and Array
implementation
800
x9040
299B
Ksusha the Squirrel
brute force
,
implementation
900
x5257
294A
Shaass and Oskols
implementation
,
math
800
x23113
291A
Spyke Talks
*special problem
,
implementation
,
sortings
800
x6061
282A
Bit++
implementation
800
x252488
281A
Word Capitalization
implementation
,
strings
800
x206015
278A
Circle Line
implementation
800
x11595
276A
Lunch Rush
implementation
900
x27322
275A
Lights Out
implementation
900
x29656
271A
Beautiful Year
brute force
800
x134328
268A
Games
brute force
800
x84695
267A
Subtractions
math
,
number theory
900
x7361
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x132343
266A
Stones on the Table
implementation
800
x186250
265A
Colorful Stones (Simplified Edition)
implementation
800
x35944
263B
Squares
greedy
,
implementation
,
sortings
900
x8851
263A
Beautiful Matrix
implementation
800
x237726
262A
Roma and Lucky Numbers
implementation
800
x19558
255A
Greg's Workout
implementation
800
x28253
248A
Cupboards
implementation
800
x21995
246A
Buggy Sorting
constructive algorithms
,
greedy
,
sortings
900
x9198
245A
System Administrator
implementation
800
x8366
244A
Dividing Orange
implementation
900
x7856
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x204335
233A
Perfect Permutation
implementation
,
math
800
x41817
231A
Team
brute force
,
greedy
800
x315315
228A
Is your horseshoe on the other hoof?
implementation
800
x107296
215A
Bicycle Chain
brute force
,
implementation
900
x14332
214A
System of Equations
brute force
800
x34829
208A
Dubstep
strings
900
x86862
205A
Little Elephant and Rozdil
brute force
,
implementation
900
x22125
202A
LLPS
binary search
,
bitmasks
,
brute force
,
greedy
,
implementation
,
strings
800
x16486
200B
Drinks
implementation
,
math
800
x113246
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