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CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)
40:38:50
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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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Name
958E2
Guard Duty (medium)
binary search
,
dp
,
greedy
,
sortings
2200
x884
274D
Lovely Matrix
dfs and similar
,
graphs
,
greedy
,
sortings
2200
x1003
731D
80-th Level Archeology
brute force
,
data structures
,
greedy
,
sortings
2200
x1135
1607H
Banquet Preparations 2
greedy
,
sortings
,
two pointers
2200
x1174
1772G
Gaining Rating
binary search
,
greedy
,
implementation
,
math
,
sortings
,
two pointers
2200
x1247
1039C
Network Safety
dfs and similar
,
dsu
,
graphs
,
math
,
sortings
2200
x1308
1901E
Compressed Tree
dfs and similar
,
dp
,
graphs
,
greedy
,
sortings
,
trees
2200
x1313
76A
Gift
dsu
,
graphs
,
sortings
,
trees
2200
x1401
1918E
ace5 and Task Order
constructive algorithms
,
divide and conquer
,
implementation
,
interactive
,
probabilities
,
sortings
2200
x1417
1618G
Trader Problem
data structures
,
dsu
,
greedy
,
sortings
2200
x1441
538F
A Heap of Heaps
brute force
,
data structures
,
math
,
sortings
2200
x1492
1194E
Count The Rectangles
bitmasks
,
brute force
,
data structures
,
geometry
,
sortings
2200
x1717
1498E
Two Houses
brute force
,
graphs
,
greedy
,
interactive
,
sortings
2200
x1823
622E
Ants in Leaves
dfs and similar
,
greedy
,
sortings
,
trees
2200
x1960
1898E
Sofia and Strings
data structures
,
greedy
,
sortings
,
strings
,
two pointers
2200
x1983
1181D
Irrigation
binary search
,
data structures
,
implementation
,
sortings
,
trees
,
two pointers
2200
x1994
1635E
Cars
2-sat
,
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
greedy
,
sortings
2200
x2123
1398E
Two Types of Spells
binary search
,
data structures
,
greedy
,
implementation
,
math
,
sortings
2200
x2159
1477C
Nezzar and Nice Beatmap
constructive algorithms
,
geometry
,
greedy
,
math
,
sortings
2200
x2184
1399E2
Weights Division (hard version)
binary search
,
dfs and similar
,
greedy
,
sortings
,
trees
,
two pointers
2200
x2186
56E
Domino Principle
binary search
,
data structures
,
sortings
2200
x2196
1196F
K-th Path
brute force
,
constructive algorithms
,
shortest paths
,
sortings
2200
x2290
1641C
Anonymity Is Important
binary search
,
brute force
,
data structures
,
dsu
,
greedy
,
sortings
2200
x2293
549G
Happy Line
constructive algorithms
,
greedy
,
sortings
2200
x2386
1253E
Antenna Coverage
data structures
,
dp
,
greedy
,
sortings
2200
x2587
1552F
Telepanting
binary search
,
data structures
,
dp
,
sortings
2200
x2769
1630C
Paint the Middle
dp
,
greedy
,
sortings
,
two pointers
2200
x2803
1503C
Travelling Salesman Problem
binary search
,
data structures
,
dp
,
greedy
,
shortest paths
,
sortings
,
two pointers
2200
x3176
1428E
Carrots for Rabbits
binary search
,
data structures
,
greedy
,
math
,
sortings
2200
x3468
1110E
Magic Stones
constructive algorithms
,
math
,
sortings
2200
x3775
1333F
Kate and imperfection
greedy
,
implementation
,
math
,
number theory
,
sortings
,
two pointers
2200
x3891
13C
Sequence
dp
,
sortings
2200
x3967
649E
Автобус
binary search
,
data structures
,
greedy
,
sortings
2100
x102
852C
Property
greedy
,
sortings
2100
x372
306B
Optimizer
data structures
,
greedy
,
sortings
2100
x435
163C
Conveyor
sortings
,
two pointers
2100
x535
39C
Moon Craters
dp
,
sortings
2100
x567
35E
Parade
data structures
,
sortings
2100
x696
847F
Berland Elections
greedy
,
sortings
2100
x845
1906F
Maximize The Value
data structures
,
sortings
2100
x874
644C
Hostname Aliases
*special problem
,
binary search
,
data structures
,
implementation
,
sortings
,
strings
2100
x907
1725F
Field Photography
bitmasks
,
data structures
,
sortings
2100
x927
954F
Runner's Problem
dp
,
matrices
,
sortings
2100
x966
268E
Playlist
math
,
probabilities
,
sortings
2100
x969
1575L
Longest Array Deconstruction
data structures
,
divide and conquer
,
dp
,
sortings
2100
x1211
862E
Mahmoud and Ehab and the function
binary search
,
data structures
,
sortings
2100
x1385
190E
Counter Attack
data structures
,
dsu
,
graphs
,
hashing
,
sortings
2100
x1407
732E
Sockets
greedy
,
sortings
2100
x1574
496E
Distributing Parts
greedy
,
sortings
2100
x1619
1158C
Permutation recovery
constructive algorithms
,
data structures
,
dfs and similar
,
graphs
,
greedy
,
math
,
sortings
2100
x1667
1176F
Destroy it!
dp
,
implementation
,
sortings
2100
x1717
1183F
Topforces Strikes Back
brute force
,
math
,
sortings
2100
x1755
333D
Characteristics of Rectangles
binary search
,
bitmasks
,
brute force
,
implementation
,
sortings
2100
x1841
1896E
Permutation Sorting
data structures
,
sortings
2100
x1935
103D
Time to Raid Cowavans
brute force
,
data structures
,
sortings
2100
x1950
540E
Infinite Inversions
binary search
,
data structures
,
implementation
,
sortings
,
trees
2100
x1976
1801D
The way home
binary search
,
data structures
,
dp
,
graphs
,
greedy
,
shortest paths
,
sortings
2100
x1997
166B
Polygons
geometry
,
sortings
2100
x2035
1876C
Autosynthesis
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
sortings
2100
x2084
754D
Fedor and coupons
binary search
,
data structures
,
greedy
,
sortings
2100
x2124
1839D
Ball Sorting
data structures
,
dp
,
sortings
2100
x2135
976E
Well played!
greedy
,
sortings
2100
x2153
1924B
Space Harbour
data structures
,
implementation
,
math
,
sortings
2100
x2175
1821E
Rearrange Brackets
brute force
,
dp
,
greedy
,
sortings
,
strings
2100
x2178
767D
Cartons of milk
binary search
,
data structures
,
greedy
,
sortings
,
two pointers
2100
x2181
1864E
Guess Game
bitmasks
,
data structures
,
games
,
math
,
probabilities
,
sortings
,
strings
,
trees
2100
x2438
1223E
Paint the Tree
dp
,
sortings
,
trees
2100
x2505
1154F
Shovels Shop
dp
,
greedy
,
sortings
2100
x2505
1863E
Speedrun
brute force
,
dfs and similar
,
dp
,
graphs
,
greedy
,
math
,
sortings
,
two pointers
2100
x2560
1296F
Berland Beauty
constructive algorithms
,
dfs and similar
,
greedy
,
sortings
,
trees
2100
x2606
1671E
Preorder
combinatorics
,
divide and conquer
,
dp
,
dsu
,
hashing
,
sortings
,
trees
2100
x2618
1271D
Portals
data structures
,
dp
,
greedy
,
implementation
,
sortings
2100
x2718
1466F
Euclid's nightmare
bitmasks
,
dfs and similar
,
dsu
,
graphs
,
greedy
,
math
,
sortings
2100
x2784
1284D
New Year and Conference
binary search
,
data structures
,
hashing
,
sortings
2100
x2858
1472F
New Year's Puzzle
brute force
,
dp
,
graph matchings
,
greedy
,
sortings
2100
x2918
576C
Points on Plane
constructive algorithms
,
divide and conquer
,
geometry
,
greedy
,
sortings
2100
x3191
675C
Money Transfers
constructive algorithms
,
data structures
,
greedy
,
sortings
2100
x3409
1919D
01 Tree
constructive algorithms
,
data structures
,
dsu
,
greedy
,
sortings
,
trees
2100
x3503
1333D
Challenges in school №41
brute force
,
constructive algorithms
,
games
,
graphs
,
greedy
,
implementation
,
sortings
2100
x3622
1555E
Boring Segments
data structures
,
sortings
,
trees
,
two pointers
2100
x3833
1322B
Present
binary search
,
bitmasks
,
constructive algorithms
,
data structures
,
math
,
sortings
2100
x3867
1365F
Swaps Again
constructive algorithms
,
implementation
,
sortings
2100
x4276
1355E
Restorer Distance
binary search
,
greedy
,
math
,
sortings
,
ternary search
2100
x4679
1493D
GCD of an Array
brute force
,
data structures
,
hashing
,
implementation
,
math
,
number theory
,
sortings
,
two pointers
2100
x4692
1343E
Weights Distributing
brute force
,
graphs
,
greedy
,
shortest paths
,
sortings
2100
x4782
484B
Maximum Value
binary search
,
math
,
sortings
,
two pointers
2100
x6712
73B
Need For Brake
binary search
,
greedy
,
sortings
2000
x485
109D
Lucky Sorting
constructive algorithms
,
sortings
2000
x612
82C
General Mobilization
data structures
,
dfs and similar
,
sortings
2000
x794
33D
Knights
geometry
,
graphs
,
shortest paths
,
sortings
2000
x1118
243B
Hydra
graphs
,
sortings
2000
x1169
367C
Sereja and the Arrangement of Numbers
graphs
,
greedy
,
sortings
2000
x1696
659F
Polycarp and Hay
dfs and similar
,
dsu
,
graphs
,
greedy
,
sortings
2000
x1743
954E
Water Taps
binary search
,
greedy
,
sortings
2000
x1781
21C
Stripe 2
binary search
,
dp
,
sortings
2000
x1975
1741F
Multi-Colored Segments
binary search
,
data structures
,
math
,
sortings
2000
x2185
1772F
Copy of a Copy of a Copy
constructive algorithms
,
dfs and similar
,
graphs
,
implementation
,
sortings
2000
x2187
1190D
Tokitsukaze and Strange Rectangle
data structures
,
divide and conquer
,
sortings
,
two pointers
2000
x2203
1619G
Unusual Minesweeper
binary search
,
dfs and similar
,
dsu
,
greedy
,
sortings
2000
x2233
1183G
Candy Box (hard version)
greedy
,
implementation
,
sortings
2000
x2257
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