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Codeforces Round 945 (Div. 2)
30:17:48
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Difficulty:
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implementation
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
1092A
Uniform String
implementation
800
x15967
551A
GukiZ and Contest
brute force
,
implementation
,
sortings
800
x16032
764A
Taymyr is calling you
brute force
,
implementation
,
math
800
x16050
1136A
Nastya Is Reading a Book
implementation
800
x16131
1668A
Direction Change
implementation
,
math
800
x16160
361A
Levko and Table
constructive algorithms
,
implementation
800
x16214
987A
Infinity Gauntlet
implementation
800
x16255
1820A
Yura's New Name
implementation
,
strings
800
x16367
1689A
Lex String
brute force
,
greedy
,
implementation
,
sortings
,
two pointers
800
x16386
1561A
Simply Strange Sort
brute force
,
implementation
,
sortings
800
x16455
1139A
Even Substrings
implementation
,
strings
800
x16460
615A
Bulbs
implementation
800
x16647
1890B
Qingshan Loves Strings
constructive algorithms
,
implementation
800
x16685
918A
Eleven
brute force
,
implementation
800
x16769
1750A
Indirect Sort
constructive algorithms
,
implementation
,
math
800
x16787
609A
USB Flash Drives
greedy
,
implementation
,
sortings
800
x16826
1797A
Li Hua and Maze
constructive algorithms
,
flows
,
graphs
,
greedy
,
implementation
800
x16951
1839A
The Good Array
greedy
,
implementation
,
math
800
x17104
1091A
New Year and the Christmas Ornament
brute force
,
implementation
,
math
800
x17337
1863A
Channel
greedy
,
implementation
800
x17448
1585A
Life of a Flower
implementation
800
x17513
1281A
Suffix Three
implementation
800
x17706
1284A
New Year and Naming
implementation
,
strings
800
x17772
1678A
Tokitsukaze and All Zero Sequence
implementation
800
x17921
1491A
K-th Largest Value
brute force
,
greedy
,
implementation
800
x18041
1680B
Robots
implementation
800
x18077
721A
One-dimensional Japanese Crossword
implementation
800
x18083
1894A
Secret Sport
implementation
,
strings
800
x18127
92A
Chips
implementation
,
math
800
x18234
1114A
Got Any Grapes?
brute force
,
greedy
,
implementation
800
x18248
1392B
Omkar and Infinity Clock
implementation
,
math
800
x18384
1316A
Grade Allocation
implementation
800
x18393
1654A
Maximum Cake Tastiness
brute force
,
greedy
,
implementation
,
sortings
800
x18418
1096A
Find Divisible
greedy
,
implementation
,
math
800
x18424
1796A
Typical Interview Problem
brute force
,
implementation
,
strings
800
x18570
780A
Andryusha and Socks
implementation
800
x18642
1602A
Two Subsequences
implementation
800
x18772
867A
Between the Offices
implementation
800
x18774
770A
New Password
*special problem
,
implementation
800
x18798
1144A
Diverse Strings
implementation
,
strings
800
x18852
701A
Cards
greedy
,
implementation
800
x18895
1301A
Three Strings
implementation
,
strings
800
x19064
1438A
Specific Tastes of Andre
constructive algorithms
,
implementation
800
x19108
1430B
Barrels
greedy
,
implementation
,
sortings
800
x19148
1513A
Array and Peaks
constructive algorithms
,
implementation
800
x19186
262A
Roma and Lucky Numbers
implementation
800
x19249
1775A1
Gardener and the Capybaras (easy version)
brute force
,
constructive algorithms
,
implementation
800
x19320
1798A
Showstopper
greedy
,
implementation
,
sortings
800
x19347
1323A
Even Subset Sum Problem
brute force
,
dp
,
greedy
,
implementation
800
x19379
1440A
Buy the String
implementation
,
math
800
x19507
1864A
Increasing and Decreasing
constructive algorithms
,
greedy
,
implementation
,
math
800
x19785
1836A
Destroyer
implementation
,
sortings
800
x19801
1681B
Card Trick
implementation
,
math
800
x19831
1623A
Robot Cleaner
brute force
,
implementation
,
math
800
x19893
1017A
The Rank
implementation
800
x20001
1200A
Hotelier
brute force
,
data structures
,
implementation
800
x20047
1658A
Marin and Photoshoot
constructive algorithms
,
implementation
,
math
800
x20136
1411A
In-game Chat
implementation
800
x20143
1767A
Cut the Triangle
implementation
800
x20153
855A
Tom Riddle's Diary
brute force
,
implementation
,
strings
800
x20163
1671A
String Building
implementation
800
x20171
1287A
Angry Students
greedy
,
implementation
800
x20200
1644B
Anti-Fibonacci Permutation
brute force
,
constructive algorithms
,
implementation
800
x20462
1015A
Points in Segments
implementation
800
x20533
38A
Army
implementation
800
x20555
1698B
Rising Sand
constructive algorithms
,
greedy
,
implementation
800
x20652
746A
Compote
implementation
,
math
800
x20653
1300A
Non-zero
implementation
,
math
800
x20683
1230A
Dawid and Bags of Candies
brute force
,
implementation
800
x21001
1108A
Two distinct points
implementation
800
x21174
1006A
Adjacent Replacements
implementation
800
x21184
1620A
Equal or Not Equal
constructive algorithms
,
dsu
,
implementation
800
x21239
1228A
Distinct Digits
brute force
,
implementation
800
x21247
1061A
Coins
greedy
,
implementation
,
math
800
x21333
1207A
There Are Two Types Of Burgers
brute force
,
greedy
,
implementation
,
math
800
x21368
248A
Cupboards
implementation
800
x21433
1146A
Love "A"
implementation
,
strings
800
x21447
1937A
Shuffle Party
implementation
,
math
800
x21511
1713A
Traveling Salesman Problem
geometry
,
greedy
,
implementation
800
x21673
716A
Crazy Computer
implementation
800
x21799
1176A
Divide it!
brute force
,
greedy
,
implementation
800
x21923
1749A
Cowardly Rooks
greedy
,
implementation
800
x22000
1900A
Cover in Water
constructive algorithms
,
greedy
,
implementation
,
strings
800
x22096
1694A
Creep
greedy
,
implementation
800
x22145
1453A
Cancel the Trains
implementation
800
x22278
294A
Shaass and Oskols
implementation
,
math
800
x22284
999A
Mishka and Contest
brute force
,
implementation
800
x22299
1618B
Missing Bigram
implementation
800
x22301
1913A
Rating Increase
implementation
800
x22322
1739A
Immobile Knight
implementation
800
x22322
1616A
Integer Diversity
implementation
800
x22439
1647A
Madoka and Math Dad
implementation
,
math
800
x22490
1598A
Computer Game
brute force
,
dfs and similar
,
dp
,
implementation
800
x22804
1744B
Even-Odd Increments
implementation
,
math
800
x22838
1351A
A+B (Trial Problem)
implementation
800
x22960
1005A
Tanya and Stairways
implementation
800
x23073
1795A
Two Towers
brute force
,
implementation
,
strings
800
x23254
1923A
Moving Chips
greedy
,
implementation
800
x23306
1809A
Garland
implementation
800
x23428
1946A
Median of an Array
greedy
,
implementation
,
sortings
800
x23608
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