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Kotlin Heroes: Practice 10
03:05:10
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Kotlin Heroes: Episode 10
04:05:10
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math
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
167C
Wizards and Numbers
games
,
math
2300
x657
167B
Wizards and Huge Prize
dp
,
math
,
probabilities
1800
x2092
167A
Wizards and Trolleybuses
implementation
,
math
1600
x2012
166E
Tetrahedron
dp
,
math
,
matrices
1500
x19984
166C
Median
greedy
,
math
,
sortings
1500
x6351
165C
Another Problem on Strings
binary search
,
brute force
,
dp
,
math
,
strings
,
two pointers
1600
x11880
160C
Find Pair
implementation
,
math
,
sortings
1700
x3380
154D
Flatland Fencing
games
,
math
2400
x418
154B
Colliders
math
,
number theory
1600
x4235
151A
Soft Drinking
implementation
,
math
800
x65933
150C
Smart Cheater
data structures
,
math
,
probabilities
2200
x627
150B
Quantity of Strings
combinatorics
,
dfs and similar
,
graphs
,
math
1600
x3966
150A
Win or Freeze
games
,
math
,
number theory
1400
x7583
149C
Division into Teams
greedy
,
math
,
sortings
1500
x5256
148D
Bag of mice
dp
,
games
,
math
,
probabilities
1800
x6788
148B
Escape
implementation
,
math
1500
x5265
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x87267
145C
Lucky Subsequence
combinatorics
,
dp
,
math
2100
x1884
143A
Help Vasilisa the Wise 2
brute force
,
math
1000
x13068
142A
Help Farmer
brute force
,
math
1600
x2569
141B
Hopscotch
geometry
,
math
1400
x5140
140A
New Year Table
geometry
,
math
1700
x4089
139B
Wallpaper
implementation
,
math
1600
x1274
136B
Ternary Logic
implementation
,
math
1100
x4702
135B
Rectangle and Square
brute force
,
geometry
,
math
1600
x2296
134B
Pairs of Numbers
brute force
,
dfs and similar
,
math
,
number theory
1900
x1916
131C
The World is a Theatre
combinatorics
,
math
1400
x10651
131B
Opposites Attract
implementation
,
math
1200
x6863
128E
Birthday
geometry
,
math
2900
x96
126D
Fibonacci Sums
dp
,
math
2300
x807
126A
Hot Bath
binary search
,
brute force
,
math
1900
x1402
125A
Measuring Lengths in Baden
math
1400
x2641
124A
The number of positions
math
1000
x36338
123B
Squares
math
1800
x1095
120E
Put Knight!
games
,
math
1400
x2648
120C
Winnie-the-Pooh and honey
implementation
,
math
1100
x3587
120A
Elevator
brute force
,
implementation
,
math
1000
x4499
117D
Not Quick Transformation
divide and conquer
,
math
2500
x330
117A
Elevator
implementation
,
math
1300
x1974
115C
Plumber
math
2200
x587
114A
Cifera
math
1000
x13855
113E
Sleeping
combinatorics
,
implementation
,
math
2700
x116
113D
Museum
math
,
matrices
,
probabilities
2700
x652
113C
Double Happiness
brute force
,
math
,
number theory
2200
x1202
112B
Petya and Square
implementation
,
math
1200
x4067
109E
Lucky Interval
brute force
,
math
2700
x98
108B
Datatypes
math
,
sortings
1400
x2415
107B
Basketball Team
combinatorics
,
dp
,
math
,
probabilities
1600
x3291
103A
Testing Pants for Sadness
greedy
,
implementation
,
math
1100
x5862
101C
Vectors
implementation
,
math
2000
x684
100J
Interval Coloring
*special problem
,
greedy
,
math
2400
x60
100I
Rotation
*special problem
,
geometry
,
math
1500
x340
100E
Lamps in a Line
*special problem
,
math
1600
x266
98E
Help Shrek and Donkey
dp
,
games
,
math
,
probabilities
2700
x443
97C
Winning Strategy
binary search
,
graphs
,
math
,
shortest paths
2400
x297
95D
Horse Races
dp
,
math
2500
x414
94B
Friends
graphs
,
implementation
,
math
1300
x4496
93E
Lostborn
dp
,
math
,
number theory
2600
x434
93D
Flags
dp
,
math
,
matrices
2500
x334
92A
Chips
implementation
,
math
800
x18223
90A
Cableway
greedy
,
math
1000
x4513
87C
Interesting Game
dp
,
games
,
math
2000
x1306
87A
Trains
implementation
,
math
1500
x5181
86E
Long sequence
brute force
,
math
,
matrices
2700
x179
86D
Powerful array
data structures
,
implementation
,
math
,
two pointers
2200
x12542
86B
Tetris revisited
constructive algorithms
,
graph matchings
,
greedy
,
math
2200
x401
86A
Reflection
math
1600
x1341
84A
Toy Army
math
,
number theory
900
x14578
83D
Numbers
dp
,
math
,
number theory
2400
x821
83B
Doctor
binary search
,
math
,
sortings
1800
x1617
83A
Magical Array
math
1300
x6079
82A
Double Cola
implementation
,
math
1100
x29458
81C
Average Score
greedy
,
math
,
sortings
1700
x1624
80B
Depression
geometry
,
math
1200
x4222
79E
Security System
math
2900
x118
78D
Archer's Shot
binary search
,
geometry
,
math
,
two pointers
2300
x302
77B
Falling Anvils
math
,
probabilities
1800
x2546
76E
Points
implementation
,
math
1700
x1659
76D
Plus and xor
dp
,
greedy
,
math
1700
x1993
76C
Mutation
bitmasks
,
dp
,
math
2700
x269
75D
Big Maximum Sum
data structures
,
dp
,
greedy
,
implementation
,
math
,
trees
2000
x1735
73E
Morrowindows
math
,
number theory
2400
x322
73A
The Elder Trolls IV: Oblivon
greedy
,
math
1600
x1297
72F
Oil
*special problem
,
greedy
,
math
1900
x116
72C
Extraordinarily Nice Numbers
*special problem
,
math
1200
x901
72A
Goshtasp, Vishtasp and Eidi
*special problem
,
greedy
,
math
1800
x181
71C
Round Table Knights
dp
,
math
,
number theory
1600
x6235
71B
Progress Bar
implementation
,
math
1300
x4363
70A
Cookies
math
1300
x3220
69A
Young Physicist
implementation
,
math
1000
x155375
68D
Half-decay tree
data structures
,
divide and conquer
,
dp
,
math
,
probabilities
2500
x448
66D
Petya and His Friends
constructive algorithms
,
math
,
number theory
1700
x3054
65A
Harry Potter and Three Spells
implementation
,
math
1800
x1782
64E
Prime Segment
*special problem
,
brute force
,
math
,
number theory
1800
x234
64C
Table
*special problem
,
greedy
,
implementation
,
math
1600
x331
62A
A Student's Dream
greedy
,
math
1300
x3366
61C
Capture Valerian
math
2000
x692
60E
Mushroom Gnomes
math
,
matrices
2600
x316
60D
Savior
brute force
,
dsu
,
math
2500
x395
57E
Chess
math
,
shortest paths
3000
x250
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