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CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)
26:35:29
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combinatorics
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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Custom test
Problems
#
Name
735C
Tennis Championship
combinatorics
,
constructive algorithms
,
greedy
,
math
1600
x7303
364A
Matrix
combinatorics
,
data structures
,
implementation
1600
x4577
340C
Tourist Problem
combinatorics
,
implementation
,
math
1600
x4089
150B
Quantity of Strings
combinatorics
,
dfs and similar
,
graphs
,
math
1600
x3922
107B
Basketball Team
combinatorics
,
dp
,
math
,
probabilities
1600
x3246
319A
Malek Dance Club
combinatorics
,
math
1600
x2747
630G
Challenge Pennants
combinatorics
,
math
1600
x2599
272D
Dima and Two Sequences
combinatorics
,
math
,
sortings
1600
x2569
52B
Right Triangles
combinatorics
1600
x1955
323A
Black-and-White Cube
combinatorics
,
constructive algorithms
1600
x711
1699C
The Third Problem
combinatorics
,
constructive algorithms
,
math
1700
x9288
1462E2
Close Tuples (hard version)
binary search
,
combinatorics
,
implementation
,
math
,
sortings
,
two pointers
1700
x9085
1301C
Ayoub's function
binary search
,
combinatorics
,
greedy
,
math
,
strings
1700
x8978
1312D
Count the Arrays
combinatorics
,
math
1700
x8833
1528B
Kavi on Pairing Duty
combinatorics
,
dp
,
math
1700
x8404
1598D
Training Session
combinatorics
,
data structures
,
geometry
,
implementation
,
math
1700
x8320
1557C
Moamen and XOR
bitmasks
,
combinatorics
,
dp
,
math
,
matrices
1700
x8247
1715C
Monoblock
combinatorics
,
data structures
,
implementation
,
math
1700
x8240
1422C
Bargain
combinatorics
,
dp
,
math
1700
x8034
1239A
Ivan the Fool and the Probability Theory
combinatorics
,
dp
,
math
1700
x7062
1829H
Don't Blame Me
bitmasks
,
combinatorics
,
dp
,
math
1700
x6843
518D
Ilya and Escalator
combinatorics
,
dp
,
math
,
probabilities
1700
x6633
1091D
New Year and the Permutation Concatenation
combinatorics
,
dp
,
math
1700
x6553
1931F
Chat Screenshots
combinatorics
,
dfs and similar
,
graphs
1700
x6539
489D
Unbearable Controversy of Being
brute force
,
combinatorics
,
dfs and similar
,
graphs
1700
x6510
1833F
Ira and Flamenco
combinatorics
,
constructive algorithms
,
data structures
,
implementation
,
math
,
sortings
,
two pointers
1700
x6504
1879D
Sum of XOR Functions
bitmasks
,
combinatorics
,
divide and conquer
,
dp
,
math
1700
x6357
1329B
Dreamoon Likes Sequences
bitmasks
,
combinatorics
,
math
1700
x6340
630I
Parking Lot
combinatorics
,
math
1700
x6209
1279D
Santa's Bot
combinatorics
,
math
,
probabilities
1700
x5811
1102E
Monotonic Renumeration
combinatorics
,
sortings
1700
x5548
621C
Wet Shark and Flowers
combinatorics
,
math
,
number theory
,
probabilities
1700
x5261
1735D
Meta-set
brute force
,
combinatorics
,
data structures
,
hashing
,
math
1700
x5204
689C
Mike and Chocolate Thieves
binary search
,
combinatorics
,
math
1700
x4821
1043D
Mysterious Crime
brute force
,
combinatorics
,
math
,
meet-in-the-middle
,
two pointers
1700
x4357
685A
Robbers' watch
brute force
,
combinatorics
,
dp
,
math
1700
x4132
327C
Magic Five
combinatorics
,
math
1700
x3095
596C
Wilbur and Points
combinatorics
,
greedy
,
sortings
1700
x2232
929C
Красивая команда
*special problem
,
combinatorics
,
math
1700
x1137
300C
Beautiful Numbers
brute force
,
combinatorics
1800
x8758
1327E
Count The Blocks
combinatorics
,
dp
,
math
1800
x8450
1420D
Rescue Nibel!
combinatorics
,
data structures
,
sortings
1800
x7265
1935D
Exam in MAC
binary search
,
combinatorics
,
implementation
,
math
1800
x6734
1705D
Mark and Lightbulbs
combinatorics
,
constructive algorithms
,
greedy
,
math
,
sortings
1800
x6039
1552C
Maximize the Intersections
combinatorics
,
constructive algorithms
,
geometry
,
greedy
,
sortings
1800
x5746
1207D
Number Of Permutations
combinatorics
1800
x5732
1750D
Count GCD
combinatorics
,
math
,
number theory
1800
x5450
986B
Petr and Permutations
combinatorics
,
math
1800
x4543
1195D2
Submarine in the Rybinsk Sea (hard edition)
combinatorics
,
math
,
number theory
1800
x4399
894B
Ralph And His Magic Field
combinatorics
,
constructive algorithms
,
math
,
number theory
1800
x4354
869C
The Intriguing Obsession
combinatorics
,
dp
,
math
1800
x4313
1442B
Identify the Operations
combinatorics
,
data structures
,
dsu
,
greedy
,
implementation
1800
x4283
1824B1
LuoTianyi and the Floating Islands (Easy Version)
combinatorics
,
math
,
probabilities
,
trees
1800
x4260
1508B
Almost Sorted
binary search
,
combinatorics
,
constructive algorithms
,
implementation
1800
x3791
914C
Travelling Salesman and Special Numbers
brute force
,
combinatorics
,
dp
1800
x3563
991E
Bus Number
brute force
,
combinatorics
,
math
1800
x3367
652C
Foe Pairs
combinatorics
,
sortings
,
two pointers
1800
x3053
626D
Jerry's Protest
brute force
,
combinatorics
,
dp
,
probabilities
1800
x2640
603B
Moodular Arithmetic
combinatorics
,
dfs and similar
,
dsu
,
math
,
number theory
1800
x2525
1912K
Kim's Quest
bitmasks
,
combinatorics
,
dp
1800
x1824
575H
Bots
combinatorics
,
dp
,
math
,
number theory
1800
x1620
690D2
The Wall (medium)
combinatorics
1800
x1200
577B
Modulo Sum
combinatorics
,
data structures
,
dp
,
two pointers
1900
x11325
1400D
Zigzags
brute force
,
combinatorics
,
data structures
,
math
,
two pointers
1900
x9717
1036C
Classy Numbers
combinatorics
,
dp
1900
x8399
459C
Pashmak and Buses
combinatorics
,
constructive algorithms
,
math
1900
x6045
1444B
Divide and Sum
combinatorics
,
math
,
sortings
1900
x5986
1238D
AB-string
binary search
,
combinatorics
,
dp
,
strings
1900
x5709
1545B
AquaMoon and Chess
combinatorics
,
math
1900
x5560
1749D
Counting Arrays
combinatorics
,
dp
,
math
,
number theory
1900
x5180
1371E1
Asterism (Easy Version)
binary search
,
brute force
,
combinatorics
,
math
,
number theory
,
sortings
1900
x4940
479E
Riding in a Lift
combinatorics
,
dp
1900
x4914
1202D
Print a 1337-string...
combinatorics
,
constructive algorithms
,
math
,
strings
1900
x4830
1276B
Two Fairs
combinatorics
,
dfs and similar
,
dsu
,
graphs
1900
x4603
711D
Directed Roads
combinatorics
,
dfs and similar
,
graphs
,
math
1900
x4334
552D
Vanya and Triangles
brute force
,
combinatorics
,
data structures
,
geometry
,
math
,
sortings
1900
x4329
1717D
Madoka and The Corruption Scheme
combinatorics
,
constructive algorithms
,
greedy
,
math
1900
x4207
1929D
Sasha and a Walk in the City
combinatorics
,
dp
,
math
,
trees
1900
x3915
1000D
Yet Another Problem On a Subsequence
combinatorics
,
dp
1900
x3915
1172B
Nauuo and Circle
combinatorics
,
dfs and similar
,
dp
,
trees
1900
x3703
294C
Shaass and Lights
combinatorics
,
number theory
1900
x3690
9D
How many trees?
combinatorics
,
divide and conquer
,
dp
1900
x3634
1794D
Counting Factorizations
combinatorics
,
divide and conquer
,
dp
,
math
,
number theory
1900
x3285
1787D
Game on Axis
combinatorics
,
dfs and similar
,
dsu
,
graphs
,
implementation
1900
x3224
1673D
Lost Arithmetic Progression
combinatorics
,
math
,
number theory
1900
x3158
1777D
Score of a Tree
bitmasks
,
combinatorics
,
dfs and similar
,
dp
,
math
,
probabilities
,
trees
1900
x3145
1925D
Good Trip
combinatorics
,
dp
,
math
,
probabilities
1900
x3083
500D
New Year Santa Network
combinatorics
,
dfs and similar
,
graphs
,
trees
1900
x3021
1181C
Flag
brute force
,
combinatorics
,
dp
,
implementation
1900
x2996
1644E
Expand the Path
brute force
,
combinatorics
,
data structures
,
implementation
,
math
1900
x2921
1648C
Tyler and Strings
combinatorics
,
data structures
,
implementation
1900
x2832
57C
Array
combinatorics
,
math
1900
x2264
351B
Jeff and Furik
combinatorics
,
dp
,
probabilities
1900
x2260
568B
Symmetric and Transitive
combinatorics
,
dp
,
math
1900
x2215
353B
Two Heaps
combinatorics
,
constructive algorithms
,
greedy
,
implementation
,
math
,
sortings
1900
x2167
553B
Kyoya and Permutation
binary search
,
combinatorics
,
constructive algorithms
,
greedy
,
implementation
,
math
1900
x2092
213B
Numbers
combinatorics
,
dp
1900
x1658
229C
Triangles
combinatorics
,
graphs
,
math
1900
x1582
285D
Permutation Sum
bitmasks
,
combinatorics
,
dp
,
implementation
,
meet-in-the-middle
1900
x1502
223C
Partial Sums
combinatorics
,
math
,
number theory
1900
x1501
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