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Codeforces Round 1134 (Div. 4)
2 days
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combine-tags-by-or
*combine tags by OR
2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
communication
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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Custom test
Problems
#
Name
1272A
Three Friends
brute force
,
greedy
,
math
,
sortings
900
x22391
1271A
Suits
brute force
,
greedy
,
math
800
x15787
1270A
Card Game
games
,
greedy
,
math
800
x17970
1269A
Equation
brute force
,
math
800
x24913
1267B
Balls of Buma
900
x4823
1266B
Dice Tower
constructive algorithms
,
math
1000
x16810
1266A
Competitive Programmer
chinese remainder theorem
,
math
1000
x17956
1265A
Beautiful String
constructive algorithms
,
greedy
1000
x16085
1260A
Heating
math
1000
x16148
1257B
Magic Stick
math
1000
x22966
1257A
Two Rival Students
greedy
,
math
800
x21797
1256A
Payment Without Change
math
1000
x33051
1255A
Changing Volume
math
800
x18188
1253A
Single Push
implementation
1000
x19666
1252A
Copying Homework
1000
x6132
1251A
Broken Keyboard
brute force
,
strings
,
two pointers
1000
x21972
1250F
Data Center
brute force
,
implementation
800
x8564
1249B1
Books Exchange (easy version)
dsu
,
math
1000
x22784
1249A
Yet Another Dividing into Teams
math
800
x23913
1248B
Grow The Tree
greedy
,
math
,
sortings
900
x18253
1248A
Integer Points
geometry
,
math
1000
x15263
1245A
Good ol' Numbers Coloring
math
,
number theory
1000
x15095
1244B
Rooms and Staircases
brute force
,
implementation
1000
x18013
1244A
Pens and Pencils
math
800
x20250
1243B1
Character Swap (Easy Version)
strings
1000
x15492
1243A
Maximum Square
implementation
800
x16489
1238A
Prime Subtraction
math
,
number theory
900
x28977
1237A
Balanced Rating Changes
implementation
,
math
1000
x22733
1236A
Stones
brute force
,
greedy
,
math
800
x17410
1234B1
Social Network (easy version)
implementation
1000
x20050
1234A
Equalize Prices Again
math
800
x29910
1230B
Ania and Minimizing
greedy
,
implementation
1000
x19857
1230A
Dawid and Bags of Candies
brute force
,
implementation
800
x23279
1228A
Distinct Digits
brute force
,
implementation
800
x23548
1225B1
TV Subscriptions (Easy Version)
implementation
1000
x12662
1225A
Forgetting Things
math
900
x16835
1223B
Strings Equalization
strings
1000
x16319
1223A
CME
math
800
x22495
1221A
2048 Game
brute force
,
greedy
,
math
1000
x18483
1220A
Cards
implementation
,
sortings
,
strings
800
x33344
1216B
Shooting
greedy
,
implementation
,
sortings
900
x20059
1216A
Prefixes
strings
800
x19769
1215A
Yellow Cards
greedy
,
implementation
,
math
1000
x12367
1213A
Chips Moving
math
900
x26003
1211A
Three Problems
*special problem
,
implementation
1000
x1646
1209A
Paint the Numbers
greedy
,
implementation
,
math
800
x13021
1208A
XORinacci
math
900
x18463
1207A
There Are Two Types Of Burgers
brute force
,
greedy
,
implementation
,
math
800
x23782
1206B
Make Product Equal One
dp
,
implementation
900
x30172
1206A
Choose Two Numbers
math
,
sortings
800
x26444
1204B
Mislove Has Lost an Array
greedy
,
math
900
x18560
1204A
BowWow and the Timetable
math
1000
x22642
1203A
Circle of Students
implementation
1000
x18011
1201A
Important Exam
implementation
,
strings
900
x17379
1200A
Hotelier
brute force
,
data structures
,
implementation
800
x22465
1199B
Water Lily
geometry
,
math
1000
x22859
1199A
City Day
implementation
1000
x16662
1197B
Pillars
greedy
,
implementation
1000
x14644
1197A
DIY Wooden Ladder
greedy
,
math
,
sortings
900
x14153
1196A
Three Piles of Candies
brute force
,
constructive algorithms
,
math
800
x29463
1195B
Sport Mafia
binary search
,
brute force
,
math
1000
x22483
1195A
Drinks Choosing
greedy
,
math
1000
x14451
1194A
Remove a Progression
math
800
x17620
1191A
Tokitsukaze and Enhancement
brute force
800
x19184
1189A
Keanu Reeves
strings
800
x16246
1187A
Stickers and Toys
math
900
x15747
1186A
Vus the Cossack and a Contest
implementation
800
x43683
1185A
Ropewalkers
math
800
x15523
1183B
Equalize Prices
math
900
x19970
1183A
Nearest Interesting Number
implementation
800
x27444
1182A
Filling Shapes
dp
,
math
1000
x36712
1181A
Chunga-Changa
greedy
,
math
1000
x15236
1180A
Alex and a Rhombus
dp
,
implementation
,
math
800
x28036
1178A
Prime Minister
greedy
800
x11417
1177A
Digits Sequence (Easy Edition)
implementation
1000
x6979
1176A
Divide it!
brute force
,
greedy
,
implementation
800
x25568
1175A
From Hero to Zero
implementation
,
math
900
x20413
1174A
Ehab Fails to Be Thanos
constructive algorithms
,
greedy
,
sortings
1000
x19736
1173A
Nauuo and Votes
greedy
800
x17618
1169A
Circle Metro
implementation
,
math
900
x12852
1167A
Telephone Number
brute force
,
greedy
,
strings
800
x20933
1166A
Silent Classroom
combinatorics
,
greedy
900
x15385
1165B
Polycarp Training
data structures
,
greedy
,
sortings
1000
x25291
1163A
Eating Soup
greedy
,
math
900
x14110
1162A
Zoning Restrictions Again
implementation
800
x8821
1159A
A pile of stones
implementation
,
math
800
x13527
1155A
Reverse a Substring
implementation
,
sortings
,
strings
1000
x29572
1154A
Restoring Three Numbers
math
800
x92122
1153A
Serval and Bus
brute force
,
math
1000
x12270
1152A
Neko Finds Grapes
greedy
,
implementation
,
math
800
x16372
1151A
Maxim and Biology
brute force
,
strings
1000
x12135
1150B
Tiling Challenge
greedy
,
implementation
900
x11985
1150A
Stock Arbitraging
greedy
,
implementation
800
x12727
1148A
Another One Bites The Dust
greedy
800
x15653
1146A
Love "A"
implementation
,
strings
800
x23968
1144C
Two Shuffled Sequences
constructive algorithms
,
sortings
1000
x16659
1144B
Parity Alternated Deletions
greedy
,
implementation
,
sortings
900
x18532
1144A
Diverse Strings
implementation
,
strings
800
x22369
1143A
The Doors
implementation
800
x14250
1141B
Maximal Continuous Rest
implementation
900
x23588
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