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CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
28:36:29
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→ Filter Problems
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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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Problems
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Status
Standings
Custom test
Problems
#
Name
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x217866
337A
Puzzles
greedy
900
x80764
336A
Vasily the Bear and Triangle
implementation
,
math
1000
x10130
334A
Candy Bags
implementation
1000
x18707
330A
Cakeminator
brute force
,
implementation
800
x28820
322A
Ciel and Dancing
greedy
1000
x8239
320A
Magic Numbers
brute force
,
greedy
900
x39010
318A
Even Odds
math
900
x115873
313A
Ilya and Bank Account
implementation
,
number theory
900
x56851
306A
Candies
implementation
800
x7062
302A
Eugeny and Array
implementation
800
x9107
299B
Ksusha the Squirrel
brute force
,
implementation
900
x5355
299A
Ksusha and Array
brute force
,
number theory
,
sortings
1000
x8135
294A
Shaass and Oskols
implementation
,
math
800
x23805
291A
Spyke Talks
*special problem
,
implementation
,
sortings
800
x6104
284B
Cows and Poker Game
brute force
,
implementation
1000
x6865
282A
Bit++
implementation
800
x268090
281A
Word Capitalization
implementation
,
strings
800
x215505
278A
Circle Line
implementation
800
x11728
276A
Lunch Rush
implementation
900
x27809
275A
Lights Out
implementation
900
x30473
272A
Dima and Friends
implementation
,
math
1000
x24780
271A
Beautiful Year
brute force
800
x140700
268B
Buttons
implementation
,
math
1000
x32659
268A
Games
brute force
800
x87582
267A
Subtractions
math
,
number theory
900
x7577
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x137066
266A
Stones on the Table
implementation
800
x194258
265B
Roadside Trees (Simplified Edition)
greedy
,
implementation
1000
x17263
265A
Colorful Stones (Simplified Edition)
implementation
800
x37093
263B
Squares
greedy
,
implementation
,
sortings
900
x9006
263A
Beautiful Matrix
implementation
800
x248878
262A
Roma and Lucky Numbers
implementation
800
x20062
259A
Little Elephant and Chess
brute force
,
strings
1000
x9189
255A
Greg's Workout
implementation
800
x28970
250A
Paper Work
greedy
1000
x4143
248A
Cupboards
implementation
800
x22552
246A
Buggy Sorting
constructive algorithms
,
greedy
,
sortings
900
x9309
245A
System Administrator
implementation
800
x8491
244A
Dividing Orange
implementation
900
x7964
237A
Free Cash
implementation
1000
x26964
236A
Boy or Girl
brute force
,
implementation
,
strings
800
x215049
234B
Reading
sortings
1000
x7134
233A
Perfect Permutation
implementation
,
math
800
x42980
231A
Team
brute force
,
greedy
800
x332681
230A
Dragons
greedy
,
sortings
1000
x80279
228A
Is your horseshoe on the other hoof?
implementation
800
x111958
221A
Little Elephant and Function
implementation
,
math
1000
x15307
219A
k-String
implementation
,
strings
1000
x28076
215A
Bicycle Chain
brute force
,
implementation
900
x14599
214A
System of Equations
brute force
800
x35822
208A
Dubstep
strings
900
x89326
205A
Little Elephant and Rozdil
brute force
,
implementation
900
x22543
202A
LLPS
binary search
,
bitmasks
,
brute force
,
greedy
,
implementation
,
strings
800
x17006
200B
Drinks
implementation
,
math
800
x118313
199A
Hexadecimal's theorem
brute force
,
constructive algorithms
,
implementation
,
number theory
900
x26748
195A
Let's Watch Football
binary search
,
brute force
,
math
1000
x9087
194A
Exams
implementation
,
math
900
x9914
182B
Vasya's Calendar
implementation
1000
x6949
181A
Series of Crimes
brute force
,
geometry
,
implementation
800
x7200
178A2
Educational Game
greedy
1000
x1640
178A1
Educational Game
1000
x1619
177B1
Rectangular Game
number theory
1000
x4192
177A2
Good Matrix Elements
implementation
800
x7374
177A1
Good Matrix Elements
implementation
800
x8767
172A
Phone Code
*special problem
,
brute force
,
implementation
800
x6168
169A
Chores
sortings
800
x6986
168A
Wizards and Demonstration
implementation
,
math
900
x10638
165A
Supercentral Point
implementation
1000
x23691
160A
Twins
greedy
,
sortings
900
x119393
158A
Next Round
*special problem
,
implementation
800
x253749
157B
Trace
geometry
,
sortings
1000
x13251
157A
Game Outcome
brute force
800
x7659
155A
I_love_\%username\%
brute force
800
x76607
152A
Marks
implementation
900
x16880
151A
Soft Drinking
implementation
,
math
800
x74697
149A
Business trip
greedy
,
implementation
,
sortings
900
x40133
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x93930
146A
Lucky Ticket
implementation
800
x15176
144A
Arrival of the General
implementation
800
x97430
143A
Help Vasilisa the Wise 2
brute force
,
math
1000
x13947
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x84274
139A
Petr and Book
implementation
1000
x31560
137B
Permutation
greedy
1000
x13759
137A
Postcards and photos
implementation
900
x7218
136A
Presents
implementation
800
x119522
133A
HQ9+
implementation
900
x106627
131A
cAPS lOCK
implementation
,
strings
1000
x86532
130A
Hexagonal numbers
*special problem
,
implementation
900
x1633
129A
Cookies
implementation
900
x22866
127B
Canvas Frames
implementation
1000
x8898
127A
Wasted Time
geometry
900
x11301
125B
Simple XML
implementation
1000
x2950
124A
The number of positions
math
1000
x38764
122B
Lucky Substring
brute force
,
implementation
1000
x12390
122A
Lucky Division
brute force
,
number theory
1000
x125299
120A
Elevator
brute force
,
implementation
,
math
1000
x4840
119A
Epic Game
implementation
800
x27530
118B
Present from Lena
constructive algorithms
,
implementation
1000
x30254
118A
String Task
implementation
,
strings
1000
x195320
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