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CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)
25:25:55
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sortings
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
1144B
Parity Alternated Deletions
greedy
,
implementation
,
sortings
900
x16554
1248B
Grow The Tree
greedy
,
math
,
sortings
900
x16406
1668B
Social Distance
greedy
,
math
,
sortings
900
x16228
572A
Arrays
sortings
900
x16191
1093B
Letters Rearranging
constructive algorithms
,
greedy
,
sortings
,
strings
900
x15909
1584C
Two Arrays
greedy
,
math
,
sortings
900
x15765
1823B
Sort with Step
brute force
,
math
,
sortings
900
x15173
1025A
Doggo Recoloring
implementation
,
sortings
900
x14416
1106C
Lunar New Year and Number Division
greedy
,
implementation
,
math
,
sortings
900
x14239
1197A
DIY Wooden Ladder
greedy
,
math
,
sortings
900
x13208
1132B
Discounts
greedy
,
sortings
900
x12540
991B
Getting an A
greedy
,
sortings
900
x12249
1011A
Stages
greedy
,
implementation
,
sortings
900
x11887
63A
Sinking Ship
implementation
,
sortings
,
strings
900
x10706
814A
An abandoned sentiment from past
constructive algorithms
,
greedy
,
implementation
,
sortings
900
x10074
246A
Buggy Sorting
constructive algorithms
,
greedy
,
sortings
900
x8996
263B
Squares
greedy
,
implementation
,
sortings
900
x8675
653A
Bear and Three Balls
brute force
,
implementation
,
sortings
900
x7874
412B
Network Configuration
greedy
,
sortings
900
x5240
230A
Dragons
greedy
,
sortings
1000
x73148
766B
Mahmoud and a Triangle
constructive algorithms
,
geometry
,
greedy
,
math
,
number theory
,
sortings
1000
x30539
1358B
Maria Breaks the Self-isolation
greedy
,
sortings
1000
x24498
1607C
Minimum Extraction
brute force
,
sortings
1000
x24093
1312B
Bogosort
constructive algorithms
,
sortings
1000
x24030
1859B
Olya and Game with Arrays
constructive algorithms
,
greedy
,
math
,
sortings
1000
x23545
1419D1
Sage's Birthday (easy version)
binary search
,
constructive algorithms
,
greedy
,
sortings
1000
x23361
37A
Towers
sortings
1000
x23329
1300B
Assigning to Classes
greedy
,
implementation
,
sortings
1000
x21997
1849B
Monsters
greedy
,
math
,
sortings
1000
x21826
1613B
Absent Remainder
greedy
,
implementation
,
sortings
1000
x21041
1713B
Optimal Reduction
constructive algorithms
,
sortings
1000
x20588
1622B
Berland Music
data structures
,
greedy
,
math
,
sortings
1000
x20416
1165B
Polycarp Training
data structures
,
greedy
,
sortings
1000
x20054
1438B
Valerii Against Everyone
constructive algorithms
,
data structures
,
greedy
,
sortings
1000
x18136
1671B
Consecutive Points Segment
brute force
,
math
,
sortings
1000
x18032
1614B
Divan and a New Project
constructive algorithms
,
sortings
1000
x17576
1605B
Reverse Sort
greedy
,
sortings
1000
x17503
1174A
Ehab Fails to Be Thanos
constructive algorithms
,
greedy
,
sortings
1000
x17099
507A
Amr and Music
greedy
,
implementation
,
sortings
1000
x16788
560A
Currency System in Geraldion
implementation
,
sortings
1000
x16739
1144C
Two Shuffled Sequences
constructive algorithms
,
sortings
1000
x14726
1876A
Helmets in Night Light
greedy
,
sortings
1000
x14051
1117B
Emotes
greedy
,
math
,
sortings
1000
x13591
1781B
Going to the Cinema
brute force
,
greedy
,
sortings
1000
x13143
1155A
Reverse a Substring
implementation
,
sortings
,
strings
1000
x12993
157B
Trace
geometry
,
sortings
1000
x12789
1088B
Ehab and subtraction
implementation
,
sortings
1000
x12312
864A
Fair Game
implementation
,
sortings
1000
x11340
1008B
Turn the Rectangles
greedy
,
sortings
1000
x11214
1725B
Basketball Together
binary search
,
greedy
,
sortings
1000
x11151
652B
z-sort
sortings
1000
x9732
909A
Generate Login
brute force
,
greedy
,
sortings
1000
x8963
299A
Ksusha and Array
brute force
,
number theory
,
sortings
1000
x7671
234B
Reading
sortings
1000
x6933
967B
Watering System
math
,
sortings
1000
x6766
981B
Businessmen Problems
sortings
1000
x6711
456A
Laptops
sortings
1100
x44778
519B
A and B and Compilation Errors
data structures
,
implementation
,
sortings
1100
x37362
1335C
Two Teams Composing
binary search
,
greedy
,
implementation
,
sortings
1100
x32996
1360C
Similar Pairs
constructive algorithms
,
graph matchings
,
greedy
,
sortings
1100
x31427
1334B
Middle Class
greedy
,
sortings
1100
x25056
1791E
Negatives and Positives
dp
,
greedy
,
sortings
1100
x24902
1676E
Eating Queries
binary search
,
greedy
,
sortings
1100
x24171
1557B
Moamen and k-subarrays
greedy
,
sortings
1100
x22680
1873E
Building an Aquarium
binary search
,
sortings
1100
x22072
1722D
Line
greedy
,
sortings
1100
x21792
1529B
Sifid and Strange Subsequences
greedy
,
math
,
sortings
1100
x20276
1638B
Odd Swap Sort
data structures
,
math
,
sortings
1100
x20267
1791G1
Teleporters (Easy Version)
greedy
,
sortings
1100
x19990
1921D
Very Different Array
data structures
,
greedy
,
sortings
,
two pointers
1100
x19454
1862C
Flower City Fence
binary search
,
data structures
,
implementation
,
sortings
1100
x19330
1712C
Sort Zero
greedy
,
sortings
1100
x19079
1832B
Maximum Sum
brute force
,
sortings
,
two pointers
1100
x19058
1920B
Summation Game
games
,
greedy
,
math
,
sortings
1100
x18786
1579B
Shifting Sort
implementation
,
sortings
1100
x17713
988B
Substrings Sort
sortings
,
strings
1100
x17666
1807G1
Subsequence Addition (Easy Version)
brute force
,
data structures
,
dp
,
greedy
,
implementation
,
sortings
1100
x17583
1807G2
Subsequence Addition (Hard Version)
bitmasks
,
dp
,
greedy
,
implementation
,
sortings
1100
x17305
1015C
Songs Compression
sortings
1100
x17146
1827A
Counting Orders
combinatorics
,
math
,
sortings
,
two pointers
1100
x17070
1682B
AND Sorting
bitmasks
,
constructive algorithms
,
sortings
1100
x16889
166A
Rank List
binary search
,
implementation
,
sortings
1100
x16438
1685A
Circular Local MiniMax
constructive algorithms
,
greedy
,
sortings
1100
x16367
1762B
Make Array Good
constructive algorithms
,
implementation
,
number theory
,
sortings
1100
x16063
1625B
Elementary Particles
brute force
,
greedy
,
sortings
1100
x15798
1891B
Deja Vu
brute force
,
math
,
sortings
1100
x15181
242B
Big Segment
implementation
,
sortings
1100
x15092
1864B
Swap and Reverse
constructive algorithms
,
greedy
,
sortings
,
strings
1100
x14619
1863B
Split Sort
greedy
,
math
,
sortings
1100
x14386
1839B
Lamps
greedy
,
sortings
1100
x14343
1417B
Two Arrays
greedy
,
math
,
sortings
1100
x14295
1869B
2D Traveling
geometry
,
math
,
shortest paths
,
sortings
1100
x13939
1623B
Game on Ranges
brute force
,
dfs and similar
,
implementation
,
sortings
1100
x13852
1566D1
Seating Arrangements (easy version)
data structures
,
greedy
,
sortings
1100
x13673
1189B
Number Circle
greedy
,
math
,
sortings
1100
x13582
362B
Petya and Staircases
implementation
,
sortings
1100
x13444
160B
Unlucky Ticket
greedy
,
sortings
1100
x13383
1904B
Collecting Game
binary search
,
dp
,
greedy
,
sortings
,
two pointers
1100
x12201
721B
Passwords
implementation
,
math
,
sortings
,
strings
1100
x11931
755B
PolandBall and Game
binary search
,
data structures
,
games
,
greedy
,
sortings
,
strings
1100
x10852
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