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Contest is running
Kotlin Heroes: Practice 10
08:46:38
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Before contest
Kotlin Heroes: Episode 10
09:46:38
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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
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Custom test
Problems
#
Name
4A
Watermelon
brute force
,
math
800
x482758
1A
Theatre Square
math
1000
x246189
50A
Domino piling
greedy
,
math
800
x229253
617A
Elephant
math
800
x170548
546A
Soldier and Bananas
brute force
,
implementation
,
math
800
x168075
69A
Young Physicist
implementation
,
math
1000
x155364
486A
Calculating Function
implementation
,
math
800
x109628
200B
Drinks
implementation
,
math
800
x108043
318A
Even Odds
math
900
x106401
1328A
Divisibility Problem
math
800
x93569
479A
Expression
brute force
,
math
1000
x88837
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x87261
1335A
Candies and Two Sisters
math
800
x78796
1352A
Sum of Round Numbers
implementation
,
math
800
x72179
492B
Vanya and Lanterns
binary search
,
implementation
,
math
,
sortings
1200
x71262
750A
New Year and Hurry
binary search
,
brute force
,
implementation
,
math
800
x70998
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x70943
230B
T-primes
binary search
,
implementation
,
math
,
number theory
1300
x69986
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x67443
581A
Vasya the Hipster
implementation
,
math
800
x67255
1154A
Restoring Three Numbers
math
800
x66480
151A
Soft Drinking
implementation
,
math
800
x65927
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x62585
758A
Holiday Of Equality
implementation
,
math
800
x57399
472A
Design Tutorial: Learn from Math
math
,
number theory
800
x57068
1475A
Odd Divisor
math
,
number theory
900
x55345
1343B
Balanced Array
constructive algorithms
,
math
800
x53751
9A
Die Roll
math
,
probabilities
800
x52643
1374A
Required Remainder
math
800
x50678
1367B
Even Array
greedy
,
math
800
x50367
1352C
K-th Not Divisible by n
binary search
,
math
1200
x50071
1624A
Plus One on the Subset
math
800
x49842
1433A
Boring Apartments
implementation
,
math
800
x49373
1370A
Maximum GCD
greedy
,
implementation
,
math
,
number theory
800
x48845
1551A
Polycarp and Coins
greedy
,
math
800
x48482
1360A
Minimal Square
greedy
,
math
800
x48074
520B
Two Buttons
dfs and similar
,
graphs
,
greedy
,
implementation
,
math
,
shortest paths
1400
x48008
1472B
Fair Division
dp
,
greedy
,
math
800
x47560
1283A
Minutes Before the New Year
math
800
x46598
749A
Bachgold Problem
greedy
,
implementation
,
math
,
number theory
800
x46598
1475B
New Year's Number
brute force
,
dp
,
math
900
x46478
1343A
Candies
brute force
,
math
900
x46327
1374B
Multiply by 2, divide by 6
math
900
x45921
1426A
Floor Number
implementation
,
math
800
x45587
1676B
Equal Candies
greedy
,
math
,
sortings
800
x45258
1873B
Good Kid
brute force
,
greedy
,
math
800
x44465
1371A
Magical Sticks
math
800
x44352
1294A
Collecting Coins
math
800
x44322
460A
Vasya and Socks
brute force
,
implementation
,
math
900
x44320
959A
Mahmoud and Ehab and the even-odd game
games
,
math
800
x44204
1857A
Array Coloring
greedy
,
math
800
x43629
270A
Fancy Fence
geometry
,
implementation
,
math
1100
x43495
584A
Olesya and Rodion
math
1000
x42927
1520B
Ordinary Numbers
brute force
,
math
,
number theory
800
x42879
1520D
Same Differences
data structures
,
hashing
,
math
1200
x42738
1542A
Odd Set
math
800
x42356
476A
Dreamoon and Stairs
implementation
,
math
1000
x41198
1472A
Cards for Friends
greedy
,
math
800
x40867
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x40710
233A
Perfect Permutation
implementation
,
math
800
x40477
1921A
Square
greedy
,
math
800
x39960
742A
Arpa’s hard exam and Mehrdad’s naive cheat
implementation
,
math
,
number theory
1000
x39939
1296A
Array with Odd Sum
math
800
x39535
1353A
Most Unstable Array
constructive algorithms
,
greedy
,
math
800
x38993
1729A
Two Elevators
math
800
x38968
1941A
Rudolf and the Ticket
brute force
,
math
800
x38919
1389A
LCM Problem
constructive algorithms
,
greedy
,
math
,
number theory
800
x38418
1348A
Phoenix and Balance
greedy
,
math
800
x38413
1342A
Road To Zero
greedy
,
math
1000
x38387
1358A
Park Lighting
greedy
,
math
800
x38147
1899A
Game with Integers
games
,
math
,
number theory
800
x38013
1579A
Casimir's String Solitaire
math
,
strings
800
x37829
1385A
Three Pairwise Maximums
math
800
x37599
1872A
Two Vessels
brute force
,
greedy
,
math
800
x37315
1327A
Sum of Odd Integers
math
1100
x36955
1368A
C+=
brute force
,
greedy
,
implementation
,
math
800
x36864
1955A
Yogurt Sale
math
800
x36401
124A
The number of positions
math
1000
x36335
1537A
Arithmetic Array
greedy
,
math
800
x36089
1337A
Ichihime and Triangle
constructive algorithms
,
math
800
x36079
1790A
Polycarp and the Day of Pi
implementation
,
math
,
strings
800
x35652
1369A
FashionabLee
geometry
,
math
800
x35601
1593A
Elections
math
800
x35553
1933A
Turtle Puzzle: Rearrange and Negate
greedy
,
math
,
sortings
800
x35455
1352B
Same Parity Summands
constructive algorithms
,
math
1200
x35418
1873C
Target Practice
implementation
,
math
800
x35417
1521A
Nastia and Nearly Good Numbers
constructive algorithms
,
math
,
number theory
1000
x35348
478B
Random Teams
combinatorics
,
constructive algorithms
,
greedy
,
math
1300
x35289
1950C
Clock Conversion
implementation
,
math
800
x35093
1660A
Vasya and Coins
greedy
,
math
800
x35077
1476A
K-divisible Sum
binary search
,
constructive algorithms
,
greedy
,
math
1000
x35045
1560B
Who's Opposite?
math
800
x34717
1363A
Odd Selection
brute force
,
implementation
,
math
1200
x34416
1858A
Buttons
games
,
greedy
,
math
800
x34361
1624B
Make AP
implementation
,
math
900
x34295
1353C
Board Moves
math
1000
x34214
1337B
Kana and Dragon Quest game
greedy
,
implementation
,
math
900
x33092
1669C
Odd/Even Increments
greedy
,
greedy
,
implementation
,
math
800
x32944
1473A
Replacing Elements
greedy
,
implementation
,
math
,
sortings
800
x32872
1294C
Product of Three Numbers
greedy
,
math
,
number theory
1300
x32360
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