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CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)
26:06:37
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→ 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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Custom test
Problems
#
Name
633H
Fibonacci-ish II
data structures
,
implementation
3100
x557
404E
Maze 1D
binary search
,
greedy
,
implementation
2200
x557
34E
Collisions
brute force
,
implementation
,
math
2000
x561
883A
Automatic Door
implementation
2200
x572
677E
Vanya and Balloons
binary search
,
brute force
,
dp
,
implementation
2300
x574
484C
Strange Sorting
implementation
,
math
2600
x579
71D
Solitaire
brute force
,
implementation
2200
x580
11C
How Many Squares?
implementation
2200
x585
1219G
Harvester
implementation
2000
x595
59D
Team Arrangement
constructive algorithms
,
greedy
,
implementation
2000
x597
370D
Broken Monitor
brute force
,
constructive algorithms
,
greedy
,
implementation
2100
x603
89C
Chip Play
brute force
,
data structures
,
implementation
2300
x608
1055D
Refactoring
greedy
,
implementation
,
strings
2400
x612
883C
Downloading B++
binary search
,
implementation
2300
x613
1575K
Knitting Batik
implementation
,
math
2200
x616
625D
Finals in arithmetic
constructive algorithms
,
implementation
,
math
2400
x620
1787F
Inverse Transformation
constructive algorithms
,
implementation
,
math
2500
x621
1896F
Bracket Xoring
constructive algorithms
,
greedy
,
implementation
,
math
2600
x624
1774F2
Magician and Pigs (Hard Version)
binary search
,
brute force
,
data structures
,
implementation
2700
x626
1844G
Tree Weights
bitmasks
,
constructive algorithms
,
data structures
,
dfs and similar
,
implementation
,
math
,
matrices
,
number theory
,
trees
3000
x627
1532C
Uniform String
*special problem
,
implementation
x632
585F
Digits of Number Pi
dp
,
implementation
,
strings
3200
x632
188D
Asterisks
*special problem
,
implementation
1100
x639
382D
Ksenia and Pawns
dfs and similar
,
graphs
,
implementation
,
trees
2200
x641
383B
Volcanoes
binary search
,
implementation
,
sortings
,
two pointers
2500
x651
1771E
Hossam and a Letter
brute force
,
dp
,
implementation
,
two pointers
2500
x652
1817D
Toy Machine
constructive algorithms
,
games
,
implementation
2700
x654
784C
INTERCALC
*special problem
,
implementation
1800
x660
976D
Degree Set
constructive algorithms
,
graphs
,
implementation
2500
x662
470A
Crystal Ball Sequence
*special problem
,
implementation
1400
x662
7E
Defining Macros
dp
,
expression parsing
,
implementation
2600
x663
1421E
Swedish Heroes
brute force
,
dp
,
implementation
2700
x667
594C
Edo and Magnets
brute force
,
greedy
,
implementation
,
two pointers
2300
x669
120G
Boom
implementation
1800
x675
1267I
Intriguing Selection
brute force
,
constructive algorithms
,
implementation
,
interactive
,
sortings
2600
x677
730D
Running Over The Bridges
greedy
,
implementation
,
math
2200
x677
920D
Tanks
dp
,
greedy
,
implementation
2400
x679
101C
Vectors
implementation
,
math
2000
x682
1431C
Black Friday
*special problem
,
implementation
1600
x690
1809F
Traveling in Berland
binary search
,
data structures
,
graphs
,
greedy
,
implementation
2500
x697
188B
A + Reverse B
*special problem
,
implementation
1300
x698
763C
Timofey and remoduling
brute force
,
implementation
,
math
,
number theory
2600
x699
15D
Map
data structures
,
implementation
,
sortings
2500
x702
730E
Award Ceremony
greedy
,
implementation
2200
x706
63E
Sweets Game
bitmasks
,
dfs and similar
,
dp
,
games
,
implementation
2000
x710
1918F
Caterpillar on a Tree
dfs and similar
,
graphs
,
greedy
,
implementation
,
sortings
,
trees
2500
x712
331B1
Shave Beaver!
implementation
1700
x714
501E
Misha and Palindrome Degree
binary search
,
combinatorics
,
implementation
2500
x715
1912E
Evaluate It and Back Again
constructive algorithms
,
implementation
,
math
2200
x717
1773B
BinCoin
binary search
,
divide and conquer
,
hashing
,
implementation
,
probabilities
,
trees
2200
x718
1422E
Minlexes
dp
,
greedy
,
implementation
,
strings
2700
x718
1567F
One-Four Overload
2-sat
,
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
implementation
2700
x720
235E
Number Challenge
combinatorics
,
dp
,
implementation
,
math
,
number theory
2600
x724
1720E
Misha and Paintings
constructive algorithms
,
data structures
,
greedy
,
implementation
,
math
2700
x729
366E
Dima and Magic Guitar
brute force
,
implementation
,
math
2200
x730
1848E
Vika and Stone Skipping
brute force
,
implementation
,
math
,
number theory
2600
x731
397B
On Corruption and Numbers
constructive algorithms
,
implementation
,
math
x735
54B
Cutting Jigsaw Puzzle
hashing
,
implementation
1800
x735
47C
Crossword
implementation
2000
x735
1186F
Vus the Cossack and a Graph
dfs and similar
,
graphs
,
greedy
,
implementation
2400
x737
1919E
Counting Prefixes
combinatorics
,
constructive algorithms
,
dp
,
implementation
,
math
2600
x743
1533B
Nearest Point Function
*special problem
,
implementation
x747
1211B
Traveling Around the Golden Ring of Berland
*special problem
,
implementation
1500
x749
1789E
Serval and Music Game
brute force
,
dp
,
implementation
,
math
,
number theory
2500
x751
1788F
XOR, Tree, and Queries
bitmasks
,
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
greedy
,
implementation
,
trees
2500
x754
1950F
0, 1, 2, Tree!
greedy
,
implementation
,
math
,
trees
x756
1891E
Brukhovich and Exams
brute force
,
greedy
,
implementation
,
math
,
sortings
2500
x762
1648D
Serious Business
data structures
,
divide and conquer
,
dp
,
implementation
,
shortest paths
2800
x762
28A
Bender Problem
implementation
1600
x762
1170C
Minus and Minus Give Plus
*special problem
,
implementation
,
strings
x765
1904E
Tree Queries
data structures
,
dfs and similar
,
graphs
,
implementation
,
trees
2500
x775
1569E
Playoff Restoration
bitmasks
,
brute force
,
hashing
,
implementation
,
meet-in-the-middle
2600
x776
1182D
Complete Mirror
constructive algorithms
,
dfs and similar
,
dp
,
hashing
,
implementation
,
trees
2400
x776
13B
Letter A
geometry
,
implementation
2000
x776
1809E
Two Tanks
binary search
,
dp
,
implementation
,
math
2400
x783
162A
Pentagonal numbers
*special problem
,
implementation
1100
x788
1805F1
Survival of the Weakest (easy version)
binary search
,
brute force
,
implementation
,
math
,
sortings
2600
x794
1250E
The Coronation
graphs
,
implementation
2300
x796
412E
E-mail Addresses
implementation
1900
x805
1070G
Monsters and Potions
brute force
,
dp
,
greedy
,
implementation
2300
x810
26C
Parquet
combinatorics
,
constructive algorithms
,
greedy
,
implementation
2000
x810
255E
Furlo and Rublo and Game
games
,
implementation
,
math
2200
x817
1146E
Hot is Cold
bitmasks
,
data structures
,
divide and conquer
,
implementation
2400
x818
1617E
Christmas Chocolates
dfs and similar
,
dp
,
games
,
graphs
,
implementation
,
math
,
number theory
,
shortest paths
,
trees
2700
x820
628E
Zbazi in Zeydabad
data structures
,
implementation
2300
x824
87D
Beautiful Road
dfs and similar
,
dp
,
dsu
,
graphs
,
implementation
,
sortings
,
trees
2300
x834
226C
Anniversary
data structures
,
implementation
,
math
,
matrices
,
number theory
2400
x838
1368F
Lamps on a Circle
games
,
implementation
,
interactive
,
math
2600
x839
37B
Computer Game
greedy
,
implementation
1800
x848
1902F
Trees and XOR Queries Again
data structures
,
dfs and similar
,
divide and conquer
,
graphs
,
implementation
,
math
,
trees
2400
x852
1085E
Vasya and Templates
greedy
,
implementation
,
strings
2300
x853
1574E
Coloring
combinatorics
,
constructive algorithms
,
implementation
,
math
2500
x854
245F
Log Stream Analysis
binary search
,
brute force
,
implementation
,
strings
2000
x855
555D
Case of a Top Secret
binary search
,
implementation
,
math
2500
x856
1297A
Likes Display
*special problem
,
implementation
x860
200D
Programming Language
binary search
,
brute force
,
expression parsing
,
implementation
1800
x866
1701F
Points
combinatorics
,
data structures
,
implementation
,
math
,
matrices
2500
x875
928C
Dependency management
*special problem
,
graphs
,
implementation
1900
x878
1468M
Similar Sets
data structures
,
graphs
,
implementation
2300
x880
100A
Carpeting the Room
*special problem
,
implementation
1100
x880
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