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Before contest
Codeforces Round 954 (Div. 3)
6 days
→ Filter Problems
Difficulty:
—
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
Standings
Custom test
Problems
#
Name
1075B
Taxi drivers and Lyft
implementation
,
sortings
1200
x4196
1075A
The King's Race
implementation
,
math
800
x8363
1073B
Vasya and Books
implementation
,
math
1000
x10460
1073A
Diverse Substring
implementation
,
strings
1000
x15065
1070K
Video Posts
implementation
1100
x4851
1070H
BerOS File Suggestion
brute force
,
implementation
1500
x3625
1070G
Monsters and Potions
brute force
,
dp
,
greedy
,
implementation
2300
x822
1066E
Binary Numbers AND Sum
data structures
,
implementation
,
math
1700
x6043
1066D
Boxes Packing
binary search
,
implementation
1800
x5342
1066C
Books Queries
implementation
1400
x9467
1065A
Vasya and Chocolate
implementation
,
math
800
x14572
1062D
Fun with Integers
dfs and similar
,
graphs
,
implementation
,
math
1800
x3882
1062C
Banh-mi
greedy
,
implementation
,
math
1600
x5336
1062A
A Prank
greedy
,
implementation
1300
x8701
1061D
TV Shows
data structures
,
greedy
,
implementation
,
sortings
2000
x2304
1061C
Multiplicity
data structures
,
dp
,
implementation
,
math
,
number theory
1700
x8479
1061B
Views Matter
greedy
,
implementation
,
sortings
1400
x7246
1061A
Coins
greedy
,
implementation
,
math
800
x21417
1060C
Maximum Subrectangle
binary search
,
implementation
,
two pointers
1600
x4831
1059B
Forgery
implementation
1300
x6934
1059A
Cashier
implementation
1000
x12561
1056C
Pick Heroes
greedy
,
implementation
,
interactive
,
sortings
1700
x2327
1056A
Determine Line
implementation
800
x6562
1055D
Refactoring
greedy
,
implementation
,
strings
2400
x618
1055B
Alice and Hairdresser
dsu
,
implementation
1300
x4923
1054E
Chips Puzzle
constructive algorithms
,
implementation
,
math
2400
x480
1054D
Changing Array
greedy
,
implementation
1900
x2220
1054C
Candies Distribution
constructive algorithms
,
implementation
1500
x4235
1054B
Appending Mex
implementation
1000
x6466
1054A
Elevator or Stairs?
implementation
800
x8991
1051C
Vasya and Multisets
brute force
,
dp
,
greedy
,
implementation
,
math
1500
x9179
1051A
Vasya And Password
greedy
,
implementation
,
strings
1200
x8338
1046F
Splitting money
implementation
1400
x2731
1044E
Grid Sort
implementation
3100
x113
1043C
Smallest Word
constructive algorithms
,
greedy
,
implementation
1500
x6801
1043B
Lost Array
implementation
1200
x6214
1043A
Elections
implementation
,
math
800
x10719
1042B
Vitamins
bitmasks
,
brute force
,
dp
,
implementation
1200
x15442
1042A
Benches
binary search
,
implementation
1100
x12570
1041A
Heist
greedy
,
implementation
,
sortings
800
x24634
1038D
Slime
dp
,
greedy
,
implementation
1800
x8162
1038A
Equality
implementation
,
strings
800
x14462
1033A
King Escape
dfs and similar
,
graphs
,
implementation
1000
x13085
1032D
Barcelonian Distance
geometry
,
implementation
1900
x2759
1031A
Golden Plate
implementation
,
math
800
x12769
1030C
Vasya and Golden Ticket
implementation
1300
x9339
1030A
In Search of an Easy Problem
implementation
800
x122545
1029D
Concatenated Multiples
implementation
,
math
1900
x3773
1029A
Many Equal Substrings
implementation
,
strings
1300
x12081
1028C
Rectangles
geometry
,
implementation
,
sortings
1600
x4395
1028A
Find Square
implementation
800
x10658
1027B
Numbers on the Chessboard
implementation
,
math
1200
x8139
1027A
Palindromic Twist
implementation
,
strings
1000
x15722
1025E
Colored Cubes
constructive algorithms
,
implementation
,
matrices
2700
x551
1025C
Plasticine zebra
constructive algorithms
,
implementation
1600
x6000
1025A
Doggo Recoloring
implementation
,
sortings
900
x14667
1023A
Single Wildcard Pattern Matching
brute force
,
implementation
,
strings
1200
x8585
1017B
The Bits
implementation
,
math
1200
x9061
1017A
The Rank
implementation
800
x20075
1016C
Vasya And The Mushrooms
dp
,
implementation
1800
x3651
1016B
Segment Occurrences
brute force
,
implementation
1300
x9296
1016A
Death Note
greedy
,
implementation
,
math
900
x14722
1015B
Obtaining the String
implementation
1200
x11396
1015A
Points in Segments
implementation
800
x20640
1012F
Passports
dp
,
implementation
3400
x153
1012A
Photo of The Sky
brute force
,
implementation
,
math
,
sortings
1500
x6165
1011B
Planning The Expedition
binary search
,
brute force
,
implementation
1200
x9843
1011A
Stages
greedy
,
implementation
,
sortings
900
x11996
1010D
Mars rover
dfs and similar
,
graphs
,
implementation
,
trees
2000
x2359
1009B
Minimum Ternary String
greedy
,
implementation
1400
x9933
1009A
Game Shopping
implementation
800
x11676
1008A
Romaji
implementation
,
strings
900
x14789
1006D
Two Strings Swaps
implementation
1700
x5877
1006B
Polycarp's Practice
greedy
,
implementation
,
sortings
1200
x12905
1006A
Adjacent Replacements
implementation
800
x21269
1005C
Summarize to the Power of Two
brute force
,
greedy
,
implementation
1300
x11386
1005B
Delete from the Left
brute force
,
implementation
,
strings
900
x22585
1005A
Tanya and Stairways
implementation
800
x23202
1004D
Sonya and Matrix
brute force
,
constructive algorithms
,
implementation
2300
x1396
1004C
Sonya and Robots
constructive algorithms
,
implementation
1400
x7464
1004B
Sonya and Exhibition
constructive algorithms
,
greedy
,
implementation
,
math
1300
x9242
1004A
Sonya and Hotels
implementation
900
x11015
1003C
Intense Heat
brute force
,
implementation
,
math
1300
x10389
1003A
Polycarp's Pockets
implementation
800
x26637
1000C
Covered Points Count
data structures
,
implementation
,
sortings
1700
x6522
1000A
Codehorses T-shirts
greedy
,
implementation
1200
x8622
999D
Equalize the Remainders
data structures
,
greedy
,
implementation
1900
x4192
999C
Alphabetic Removals
implementation
1200
x17504
999B
Reversing Encryption
implementation
900
x17224
999A
Mishka and Contest
brute force
,
implementation
800
x22434
998A
Balloons
constructive algorithms
,
implementation
1000
x9356
997A
Convert to Ones
brute force
,
greedy
,
implementation
,
math
1500
x8184
995B
Suit and Tie
greedy
,
implementation
,
math
1400
x7032
995A
Tesla
constructive algorithms
,
implementation
2100
x1558
994B
Knights of a Polygonal Table
greedy
,
implementation
,
sortings
1400
x5560
994A
Fingerprints
implementation
800
x13936
993A
Two Squares
geometry
,
implementation
1600
x3895
992D
Nastya and a Game
brute force
,
implementation
,
math
2100
x1635
992A
Nastya and an Array
implementation
,
sortings
800
x12953
991F
Concise and clear
brute force
,
greedy
,
implementation
,
math
2700
x298
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