Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
21:54:43
Register now »
*has extra registration
→ Filter Problems
Difficulty:
—
brute force
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
Add tag
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
485B
Valuable Resources
brute force
,
greedy
1300
x6540
483A
Counterexample
brute force
,
implementation
,
math
,
number theory
1100
x23237
479B
Towers
brute force
,
constructive algorithms
,
greedy
,
implementation
,
sortings
1400
x7929
479A
Expression
brute force
,
math
1000
x95311
478E
Wavy numbers
brute force
,
dfs and similar
,
meet-in-the-middle
,
sortings
2900
x221
476B
Dreamoon and WiFi
bitmasks
,
brute force
,
combinatorics
,
dp
,
math
,
probabilities
1300
x31125
475D
CGCDSSQ
brute force
,
data structures
,
math
2000
x4990
475C
Kamal-ol-molk's Painting
brute force
,
constructive algorithms
,
greedy
2100
x786
475B
Strongly Connected City
brute force
,
dfs and similar
,
graphs
,
implementation
1400
x8529
474C
Captain Marmot
brute force
,
geometry
2000
x3131
471C
MUH and House of Cards
binary search
,
brute force
,
greedy
,
math
1700
x3571
467B
Fedor and New Game
bitmasks
,
brute force
,
constructive algorithms
,
implementation
1100
x37937
466C
Number of Ways
binary search
,
brute force
,
data structures
,
dp
,
two pointers
1700
x36538
466B
Wonder Room
brute force
,
math
2000
x4930
464B
Restore Cube
brute force
,
geometry
2000
x1712
463E
Caisa and Tree
brute force
,
dfs and similar
,
math
,
number theory
,
trees
2100
x1617
463B
Caisa and Pylons
brute force
,
implementation
,
math
1100
x27484
463A
Caisa and Sugar
brute force
,
implementation
1200
x9273
462A
Appleman and Easy Task
brute force
,
implementation
1000
x16959
460E
Roland and Rose
brute force
,
geometry
,
math
,
sortings
2700
x343
460D
Little Victor and Set
brute force
,
constructive algorithms
,
math
2300
x1003
460B
Little Dima and Equation
brute force
,
implementation
,
math
,
number theory
1500
x12429
460A
Vasya and Socks
brute force
,
implementation
,
math
900
x46438
457C
Elections
brute force
2100
x881
453B
Little Pony and Harmony Chest
bitmasks
,
brute force
,
dp
2000
x4748
452B
4-point polyline
brute force
,
constructive algorithms
,
geometry
,
trees
1800
x2002
452A
Eevee
brute force
,
implementation
,
strings
1000
x8025
451C
Predict Outcome of the Game
brute force
,
implementation
,
math
1700
x3389
448E
Divisors
brute force
,
dfs and similar
,
implementation
,
number theory
2200
x1543
448D
Multiplication Table
binary search
,
brute force
1800
x14244
446B
DZY Loves Modification
brute force
,
data structures
,
greedy
2000
x3599
443B
Kolya and Tandem Repeat
brute force
,
implementation
,
strings
1500
x4067
442A
Borya and Hanabi
bitmasks
,
brute force
,
implementation
1700
x2154
440C
One-Based Arithmetic
brute force
,
dfs and similar
,
divide and conquer
1800
x921
439C
Devu and Partitioning of the Array
brute force
,
constructive algorithms
,
implementation
,
number theory
1700
x3935
436F
Banners
brute force
,
data structures
,
dp
3000
x400
435D
Special Grid
brute force
,
dp
,
greedy
2000
x761
433A
Kitahara Haruki's Gift
brute force
,
implementation
1100
x16459
432B
Football Kit
brute force
,
greedy
,
implementation
1200
x11721
431B
Shower Line
brute force
,
implementation
1200
x10864
430B
Balls Game
brute force
,
two pointers
1400
x3733
425A
Sereja and Swaps
brute force
,
sortings
1500
x3914
424D
Biathlon Track
binary search
,
brute force
,
constructive algorithms
,
data structures
,
dp
2300
x568
416B
Art Union
brute force
,
dp
,
implementation
1300
x8770
409H
A + B Strikes Back
*special problem
,
brute force
,
constructive algorithms
,
dsu
,
implementation
1500
x8968
407C
Curious Array
brute force
,
combinatorics
,
implementation
,
math
2500
x1011
407A
Triangle
brute force
,
geometry
,
implementation
,
math
1600
x4911
402C
Searching for Graph
brute force
,
constructive algorithms
,
graphs
1500
x5959
402B
Trees in a Row
brute force
,
implementation
1400
x3821
401D
Roman and Numbers
bitmasks
,
brute force
,
combinatorics
,
dp
,
number theory
2000
x4198
400B
Inna and New Matrix of Candies
brute force
,
implementation
,
schedules
1200
x7778
394D
Physical Education and Buns
brute force
,
implementation
,
math
x271
394A
Counting Sticks
brute force
,
implementation
x2664
391D1
Supercollider
brute force
x214
391C1
The Tournament
brute force
x189
391B
Word Folding
brute force
x392
387B
George and Round
brute force
,
greedy
,
two pointers
1200
x12280
386B
Fly, freebies, fly!
binary search
,
brute force
,
implementation
1400
x2187
385C
Bear and Prime Numbers
binary search
,
brute force
,
data structures
,
dp
,
implementation
,
math
,
number theory
1700
x9714
385B
Bear and Strings
brute force
,
greedy
,
implementation
,
math
,
strings
1200
x9980
385A
Bear and Raspberry
brute force
,
greedy
,
implementation
1000
x16523
380A
Sereja and Prefixes
binary search
,
brute force
1600
x2688
379D
New Year Letter
bitmasks
,
brute force
,
dp
2000
x1566
378A
Playing with Dice
brute force
800
x24252
372B
Counting Rectangles is Fun
brute force
,
divide and conquer
,
dp
1900
x2647
371C
Hamburgers
binary search
,
brute force
1600
x26824
370D
Broken Monitor
brute force
,
constructive algorithms
,
greedy
,
implementation
2100
x635
366E
Dima and Magic Guitar
brute force
,
implementation
,
math
2200
x772
366B
Dima and To-do List
brute force
,
implementation
1200
x6837
364D
Ghd
brute force
,
math
,
probabilities
2900
x2112
364C
Beautiful Set
brute force
,
number theory
2300
x599
363E
Two Circles
brute force
,
data structures
,
implementation
2500
x203
363B
Fence
brute force
,
dp
1100
x53932
359D
Pair of Numbers
binary search
,
brute force
,
data structures
,
math
,
two pointers
2000
x5141
358E
Dima and Kicks
brute force
,
dsu
,
graphs
,
implementation
2300
x399
358B
Dima and Text Messages
brute force
,
strings
1500
x3734
358A
Dima and Continuous Line
brute force
,
implementation
1400
x7773
357A
Group of Students
brute force
,
greedy
,
implementation
1000
x6859
354C
Vasya and Beautiful Arrays
brute force
,
dp
,
number theory
2100
x3083
354A
Vasya and Robot
brute force
,
greedy
,
math
1500
x5487
352A
Jeff and Digits
brute force
,
implementation
,
math
1000
x25849
350E
Wrong Floyd
brute force
,
constructive algorithms
,
dfs and similar
,
graphs
2200
x779
350A
TL
brute force
,
greedy
,
implementation
1200
x16469
348C
Subset Sums
brute force
,
data structures
2500
x2219
347B
Fixed Points
brute force
,
implementation
,
math
1100
x9340
344B
Simple Molecules
brute force
,
graphs
,
math
1200
x8891
343E
Pumping Stations
brute force
,
dfs and similar
,
divide and conquer
,
flows
,
graphs
,
greedy
,
trees
2900
x764
342B
Xenia and Spies
brute force
,
greedy
,
implementation
1500
x4026
340B
Maximal Area Quadrilateral
brute force
,
geometry
2100
x2090
337E
Divisor Tree
brute force
,
number theory
,
trees
2200
x1026
336C
Vasily the Bear and Sequence
brute force
,
greedy
,
implementation
,
number theory
1800
x2473
335D
Rectangles and Square
brute force
,
dp
2400
x329
333E
Summer Earnings
binary search
,
bitmasks
,
brute force
,
geometry
,
sortings
2500
x1137
333D
Characteristics of Rectangles
binary search
,
bitmasks
,
brute force
,
implementation
,
sortings
2100
x2123
333C
Lucky Tickets
brute force
,
constructive algorithms
2700
x392
331A1
Oh Sweet Beaverette
brute force
,
implementation
1400
x1385
330A
Cakeminator
brute force
,
implementation
800
x28820
327A
Flipping Game
brute force
,
dp
,
implementation
1200
x42330
320A
Magic Numbers
brute force
,
greedy
900
x39019
317B
Ants
brute force
,
implementation
2000
x1604
←
1
2
...
13
14
15
16
17
18
→
User lists
Name