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Before contest
Codeforces Round 954 (Div. 3)
5 days
→ Filter Problems
Difficulty:
—
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
Submit
Status
Standings
Custom test
Problems
#
Name
1095A
Repeating Cipher
implementation
800
x29967
1093A
Dice Rolling
math
800
x17595
1092B
Teams Forming
sortings
800
x25858
1092A
Uniform String
implementation
800
x16020
1091A
New Year and the Christmas Ornament
brute force
,
implementation
,
math
800
x17362
1088A
Ehab and another construction problem
brute force
,
constructive algorithms
800
x16530
1085A
Right-Left Cipher
implementation
,
strings
800
x12081
1081A
Definite Game
constructive algorithms
,
math
800
x11940
1080A
Petya and Origami
math
800
x17870
1077A
Frog Jumping
math
800
x29299
1075A
The King's Race
implementation
,
math
800
x8364
1065A
Vasya and Chocolate
implementation
,
math
800
x14572
1064A
Make a triangle!
brute force
,
geometry
,
math
800
x21861
1061A
Coins
greedy
,
implementation
,
math
800
x21417
1060A
Phone Numbers
brute force
800
x13787
1056A
Determine Line
implementation
800
x6562
1054A
Elevator or Stairs?
implementation
800
x8991
1047A
Little C Loves 3 I
math
800
x19636
1043A
Elections
implementation
,
math
800
x10722
1041A
Heist
greedy
,
implementation
,
sortings
800
x24634
1038A
Equality
implementation
,
strings
800
x14462
1031A
Golden Plate
implementation
,
math
800
x12769
1030A
In Search of an Easy Problem
implementation
800
x122565
1028A
Find Square
implementation
800
x10658
1017A
The Rank
implementation
800
x20075
1015A
Points in Segments
implementation
800
x20641
1013A
Piles With Stones
math
800
x10852
1009A
Game Shopping
implementation
800
x11677
1006A
Adjacent Replacements
implementation
800
x21269
1005A
Tanya and Stairways
implementation
800
x23205
1003A
Polycarp's Pockets
implementation
800
x26638
1002A1
Generate superposition of all basis states
800
x826
999A
Mishka and Contest
brute force
,
implementation
800
x22440
996A
Hit the Lottery
dp
,
greedy
800
x85736
994A
Fingerprints
implementation
800
x13936
992A
Nastya and an Array
implementation
,
sortings
800
x12953
988A
Diverse Team
brute force
,
implementation
800
x24133
987A
Infinity Gauntlet
implementation
800
x16343
984A
Game
sortings
800
x19162
978B
File Name
greedy
,
strings
800
x35324
978A
Remove Duplicates
implementation
800
x26338
977A
Wrong Subtraction
implementation
800
x157943
976A
Minimum Binary Number
implementation
800
x10456
965A
Paper Airplanes
math
800
x9376
964A
Splits
math
800
x9117
959A
Mahmoud and Ehab and the even-odd game
games
,
math
800
x44924
954A
Diagonal Walking
implementation
800
x10401
952A
Quirky Quantifiers
math
800
x11142
950A
Left-handers, Right-handers and Ambidexters
implementation
,
math
800
x14997
946A
Partition
greedy
800
x16135
939A
Love Triangle
graphs
800
x24498
938A
Word Correction
implementation
800
x11310
937A
Olympiad
implementation
,
sortings
800
x14899
935A
Fafa and his Company
brute force
,
implementation
800
x41899
932A
Palindromic Supersequence
constructive algorithms
800
x10153
931A
Friends Meeting
brute force
,
greedy
,
implementation
,
math
800
x11770
919A
Supermarket
brute force
,
greedy
,
implementation
800
x15962
918A
Eleven
brute force
,
implementation
800
x16820
912A
Tricky Alchemy
implementation
800
x13356
910A
The Way to Home
dfs and similar
,
dp
,
greedy
,
implementation
800
x11463
908A
New Year and Counting Cards
brute force
,
implementation
800
x14648
900A
Find Extra One
geometry
,
implementation
800
x13426
899A
Splitting in Teams
constructive algorithms
,
greedy
,
math
800
x10110
898A
Rounding
implementation
,
math
800
x15666
897A
Scarborough Fair
implementation
800
x13977
894A
QAQ
brute force
,
dp
800
x33259
888A
Local Extrema
brute force
,
implementation
800
x10715
884A
Book Reading
implementation
800
x10365
873A
Chores
implementation
800
x8011
867A
Between the Offices
implementation
800
x18877
859A
Declined Finalists
greedy
,
implementation
800
x7633
855A
Tom Riddle's Diary
brute force
,
implementation
,
strings
800
x20369
854A
Fraction
brute force
,
constructive algorithms
,
math
800
x13444
851A
Arpa and a research in Mexican wave
implementation
,
math
800
x9533
837A
Text Volume
implementation
800
x9270
835A
Key races
math
800
x19993
832A
Sasha and Sticks
games
,
math
800
x20447
831B
Keyboard Layouts
implementation
,
strings
800
x14135
822A
I'm bored with life
implementation
,
math
,
number theory
800
x31958
821A
Okabe and Future Gadget Laboratory
implementation
800
x7948
818A
Diplomas and Certificates
implementation
,
math
800
x6807
811A
Vladik and Courtesy
brute force
,
implementation
800
x11809
802G
Fake News (easy)
implementation
,
strings
800
x6778
796A
Buying A House
brute force
,
implementation
800
x12868
794A
Bank Robbery
brute force
,
implementation
800
x6939
791A
Bear and Big Brother
implementation
800
x182524
785A
Anton and Polyhedrons
implementation
,
strings
800
x83854
780A
Andryusha and Socks
implementation
800
x18806
770A
New Password
*special problem
,
implementation
800
x18987
769A
Year of University Entrance
*special problem
,
implementation
,
sortings
800
x5603
764A
Taymyr is calling you
brute force
,
implementation
,
math
800
x16082
760A
Petr and a calendar
implementation
,
math
800
x7755
758A
Holiday Of Equality
implementation
,
math
800
x58198
755A
PolandBall and Hypothesis
brute force
,
graphs
,
math
,
number theory
800
x17627
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x72050
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x47211
748A
Santa Claus and a Place in a Class
implementation
,
math
800
x8664
747A
Display Size
brute force
,
math
800
x10066
746A
Compote
implementation
,
math
800
x20994
735A
Ostap and Grasshopper
implementation
,
strings
800
x12342
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