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CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
12:41:59
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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
schedules
shortest paths
sortings
string suffix structures
strings
ternary search
trees
two pointers
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Status
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Custom test
Problems
#
Name
1392A
Omkar and Password
greedy
,
math
800
x20808
1391B
Fix You
brute force
,
greedy
,
implementation
800
x27482
1391A
Suborrays
constructive algorithms
,
math
800
x24452
1389A
LCM Problem
constructive algorithms
,
greedy
,
math
,
number theory
800
x41979
1388B
Captain Flint and a Long Voyage
greedy
,
math
1000
x22332
1388A
Captain Flint and Crew Recruitment
brute force
,
greedy
,
math
,
number theory
800
x25014
1385B
Restore the Permutation by Merger
greedy
800
x37360
1385A
Three Pairwise Maximums
math
800
x39482
1382A
Common Subsequence
brute force
800
x26589
1380A
Three Indices
brute force
,
data structures
900
x26370
1374C
Move Brackets
greedy
,
strings
1000
x47766
1374B
Multiply by 2, divide by 6
math
900
x51509
1374A
Required Remainder
math
800
x54492
1373B
01 Game
games
900
x36634
1373A
Donut Shops
greedy
,
implementation
,
math
1000
x27220
1372A
Omkar and Completion
constructive algorithms
,
implementation
800
x32047
1371A
Magical Sticks
math
800
x46479
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x52964
1369A
FashionabLee
geometry
,
math
800
x36778
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x39929
1367B
Even Array
greedy
,
math
800
x54312
1367A
Short Substrings
implementation
,
strings
800
x58124
1362A
Johnny and Ancient Computer
implementation
1000
x24507
1360B
Honest Coach
greedy
,
sortings
800
x48359
1360A
Minimal Square
greedy
,
math
800
x51195
1359B
New Theatre Square
brute force
,
dp
,
greedy
,
implementation
,
two pointers
1000
x27926
1359A
Berland Poker
brute force
,
greedy
,
math
1000
x29820
1358B
Maria Breaks the Self-isolation
greedy
,
sortings
1000
x25000
1358A
Park Lighting
greedy
,
math
800
x39740
1354A
Alarm Clock
math
900
x23870
1353C
Board Moves
math
1000
x35704
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x50427
1353A
Most Unstable Array
constructive algorithms
,
greedy
,
math
800
x41207
1352A
Sum of Round Numbers
implementation
,
math
800
x81287
1351B
Square?
brute force
,
implementation
,
math
900
x17121
1351A
A+B (Trial Problem)
implementation
800
x24245
1350A
Orac and Factors
math
900
x26148
1348A
Phoenix and Balance
greedy
,
math
800
x39795
1346A
Color Revolution
*special problem
,
math
1000
x2043
1345A
Puzzle Pieces
math
800
x24245
1343B
Balanced Array
constructive algorithms
,
math
800
x57154
1343A
Candies
brute force
,
math
900
x48381
1342A
Road To Zero
greedy
,
math
1000
x40966
1341A
Nastya and Rice
math
900
x29131
1339A
Filling Diamonds
brute force
,
dp
,
implementation
,
math
900
x32221
1337B
Kana and Dragon Quest game
greedy
,
implementation
,
math
900
x34448
1337A
Ichihime and Triangle
constructive algorithms
,
math
800
x38649
1335B
Construct the String
constructive algorithms
900
x38752
1335A
Candies and Two Sisters
math
800
x86242
1333A
Little Artem
constructive algorithms
1000
x24674
1330A
Dreamoon and Ranking Collection
implementation
900
x18814
1328A
Divisibility Problem
math
800
x104747
1326B
Maximums
implementation
,
math
900
x24134
1326A
Bad Ugly Numbers
constructive algorithms
,
number theory
1000
x30546
1325B
CopyCopyCopyCopyCopy
greedy
,
implementation
800
x36236
1325A
EhAb AnD gCd
constructive algorithms
,
greedy
,
number theory
800
x40548
1324A
Yet Another Tetris Problem
implementation
,
number theory
900
x26061
1323A
Even Subset Sum Problem
brute force
,
dp
,
greedy
,
implementation
800
x19880
1321A
Contest for Robots
greedy
900
x14346
1316A
Grade Allocation
implementation
800
x18732
1315A
Dead Pixel
implementation
800
x12174
1313A
Fast Food Restaurant
brute force
,
greedy
,
implementation
900
x15568
1312B
Bogosort
constructive algorithms
,
sortings
1000
x27360
1312A
Two Regular Polygons
geometry
,
greedy
,
math
,
number theory
800
x26039
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x42356
1307A
Cow and Haybales
greedy
,
implementation
800
x14997
1305A
Kuroni and the Gifts
brute force
,
constructive algorithms
,
greedy
,
sortings
800
x14139
1304A
Two Rabbits
math
800
x25607
1303A
Erasing Zeroes
implementation
,
strings
800
x32587
1301A
Three Strings
implementation
,
strings
800
x19437
1300B
Assigning to Classes
greedy
,
implementation
,
sortings
1000
x23698
1300A
Non-zero
implementation
,
math
800
x21076
1296B
Food Buying
math
900
x30448
1296A
Array with Odd Sum
math
800
x42394
1295A
Display The Number
greedy
900
x22946
1294A
Collecting Coins
math
800
x47366
1293B
JOE is on TV!
combinatorics
,
greedy
,
math
1000
x21312
1291A
Even But Not Even
greedy
,
math
,
strings
900
x19632
1287A
Angry Students
greedy
,
implementation
800
x20688
1285A
Mezo Playing Zoma
math
800
x28402
1284A
New Year and Naming
implementation
,
strings
800
x18030
1283B
Candies Division
math
900
x21815
1283A
Minutes Before the New Year
math
800
x51385
1282A
Temporarily unavailable
implementation
,
math
900
x14909
1281A
Suffix Three
implementation
800
x18029
1279A
New Year Garland
math
900
x16984
1278A
Shuffle Hashing
brute force
,
implementation
,
strings
1000
x16835
1277A
Happy Birthday, Polycarp!
implementation
1000
x13446
1272A
Three Friends
brute force
,
greedy
,
math
,
sortings
900
x20780
1271A
Suits
brute force
,
greedy
,
math
800
x15001
1270A
Card Game
games
,
greedy
,
math
800
x17036
1269A
Equation
brute force
,
math
800
x21822
1267B
Balls of Buma
900
x4073
1266B
Dice Tower
constructive algorithms
,
math
1000
x15170
1266A
Competitive Programmer
chinese remainder theorem
,
math
1000
x16004
1265A
Beautiful String
constructive algorithms
,
greedy
1000
x15166
1260A
Heating
math
1000
x14841
1257B
Magic Stick
math
1000
x21088
1257A
Two Rival Students
greedy
,
math
800
x20650
1256A
Payment Without Change
math
1000
x29801
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