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Codeforces Round 974 (Div. 3)
00:22:48
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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
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shortest paths
sortings
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ternary search
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Problems
#
Name
898A
Rounding
implementation
,
math
800
x16032
897A
Scarborough Fair
implementation
800
x14151
894A
QAQ
brute force
,
dp
800
x34113
888A
Local Extrema
brute force
,
implementation
800
x10912
884A
Book Reading
implementation
800
x10445
873A
Chores
implementation
800
x8194
867A
Between the Offices
implementation
800
x19210
859A
Declined Finalists
greedy
,
implementation
800
x7701
855A
Tom Riddle's Diary
brute force
,
implementation
,
strings
800
x21451
854A
Fraction
brute force
,
constructive algorithms
,
math
800
x13587
851A
Arpa and a research in Mexican wave
implementation
,
math
800
x9670
837A
Text Volume
implementation
800
x9375
835A
Key races
math
800
x20129
832A
Sasha and Sticks
games
,
math
800
x20666
831B
Keyboard Layouts
implementation
,
strings
800
x14372
822A
I'm bored with life
implementation
,
math
,
number theory
800
x32889
821A
Okabe and Future Gadget Laboratory
implementation
800
x8229
818A
Diplomas and Certificates
implementation
,
math
800
x6936
811A
Vladik and Courtesy
brute force
,
implementation
800
x11859
802G
Fake News (easy)
implementation
,
strings
800
x6940
796A
Buying A House
brute force
,
implementation
800
x12995
794A
Bank Robbery
brute force
,
implementation
800
x6998
791A
Bear and Big Brother
implementation
800
x192193
785A
Anton and Polyhedrons
implementation
,
strings
800
x87993
780A
Andryusha and Socks
implementation
800
x19427
770A
New Password
*special problem
,
implementation
800
x19735
769A
Year of University Entrance
*special problem
,
implementation
,
sortings
800
x5704
764A
Taymyr is calling you
brute force
,
implementation
,
math
800
x16242
760A
Petr and a calendar
implementation
,
math
800
x8184
758A
Holiday Of Equality
implementation
,
math
800
x60419
755A
PolandBall and Hypothesis
brute force
,
graphs
,
math
,
number theory
800
x17963
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x74800
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x48897
748A
Santa Claus and a Place in a Class
implementation
,
math
800
x8955
747A
Display Size
brute force
,
math
800
x10213
746A
Compote
implementation
,
math
800
x21306
735A
Ostap and Grasshopper
implementation
,
strings
800
x12444
734B
Anton and Digits
brute force
,
greedy
,
implementation
,
math
800
x29180
734A
Anton and Danik
implementation
,
strings
800
x149917
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x71638
731A
Night at the Museum
implementation
,
strings
800
x45410
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x77169
721A
One-dimensional Japanese Crossword
implementation
800
x18378
716A
Crazy Computer
implementation
800
x22135
712A
Memory and Crow
implementation
,
math
800
x11876
711A
Bus to Udayland
brute force
,
implementation
800
x29225
710A
King Moves
implementation
800
x13766
707A
Brain's Photos
implementation
800
x48800
705A
Hulk
implementation
800
x105341
703A
Mishka and Game
implementation
800
x56013
702A
Maximum Increase
dp
,
greedy
,
implementation
800
x44541
701A
Cards
greedy
,
implementation
800
x19469
688A
Opponents
implementation
800
x13922
686A
Free Ice Cream
constructive algorithms
,
implementation
800
x37322
681A
A Good Contest
implementation
800
x15376
680A
Bear and Five Cards
constructive algorithms
,
implementation
800
x12303
678A
Johny Likes Numbers
implementation
,
math
800
x13239
677A
Vanya and Fence
implementation
800
x139334
676A
Nicholas and Permutation
constructive algorithms
,
implementation
800
x13803
673A
Bear and Game
implementation
800
x10042
672A
Summer Camp
implementation
800
x15292
669A
Little Artem and Presents
math
800
x10764
664A
Complicated GCD
math
,
number theory
800
x18086
658A
Bear and Reverse Radewoosh
implementation
800
x7057
648B
Собери стол
constructive algorithms
,
sortings
800
x1417
630A
Again Twenty Five!
number theory
800
x66590
629A
Far Relative’s Birthday Cake
brute force
,
combinatorics
,
constructive algorithms
,
implementation
800
x13347
624A
Save Luke
math
800
x10242
620A
Professor GukiZ's Robot
implementation
,
math
800
x13072
618A
Slime Combining
implementation
800
x8325
617A
Elephant
math
800
x182904
615A
Bulbs
implementation
800
x17220
609A
USB Flash Drives
greedy
,
implementation
,
sortings
800
x17193
599A
Patrick and Shopping
implementation
800
x28557
595A
Vitaly and Night
constructive algorithms
,
implementation
800
x14511
581A
Vasya the Hipster
implementation
,
math
800
x70466
551A
GukiZ and Contest
brute force
,
implementation
,
sortings
800
x16266
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x179185
540A
Combination Lock
implementation
800
x32362
520A
Pangram
implementation
,
strings
800
x96280
513A
Game
constructive algorithms
,
math
800
x20140
510A
Fox And Snake
implementation
800
x82744
509A
Maximum in Table
brute force
,
implementation
800
x38128
492A
Vanya and Cubes
implementation
800
x49800
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x58847
486A
Calculating Function
implementation
,
math
800
x116847
472A
Design Tutorial: Learn from Math
math
,
number theory
800
x59486
469A
I Wanna Be the Guy
greedy
,
implementation
800
x96746
467A
George and Accommodation
implementation
800
x120822
454A
Little Pony and Crystal Mine
implementation
800
x14790
448A
Rewards
implementation
800
x24177
447A
DZY Loves Hash
implementation
800
x9568
443A
Anton and Letters
constructive algorithms
,
implementation
800
x88909
440A
Forgotten Episode
implementation
800
x7310
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x59217
431A
Black Square
implementation
800
x54416
427A
Police Recruits
implementation
800
x77201
426A
Sereja and Mugs
implementation
800
x9158
421A
Pasha and Hamsters
constructive algorithms
,
implementation
800
x6033
411A
Password Check
*special problem
,
implementation
800
x7205
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