Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)
24:35:00
Register now »
*has extra registration
→ Filter Problems
Difficulty:
—
constructive algorithms
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
729D
Sea Battle
constructive algorithms
,
greedy
,
math
1700
x3597
727D
T-shirts Distribution
constructive algorithms
,
flows
,
greedy
1800
x1790
727C
Guess the Array
constructive algorithms
,
interactive
,
math
1400
x6798
725C
Hidden Word
brute force
,
constructive algorithms
,
implementation
,
strings
1600
x2571
723E
One-Way Reform
constructive algorithms
,
dfs and similar
,
flows
,
graphs
,
greedy
2200
x1873
721D
Maxim and Array
constructive algorithms
,
data structures
,
greedy
,
math
2000
x2248
720C
Homework
constructive algorithms
3100
x96
715D
Create a Maze
constructive algorithms
3100
x231
715B
Complete The Graph
binary search
,
constructive algorithms
,
graphs
,
shortest paths
2300
x2624
715A
Plus and Square Root
constructive algorithms
,
math
1600
x5529
713B
Searching Rectangles
binary search
,
constructive algorithms
,
interactive
2200
x1414
711B
Chris and Magic Square
constructive algorithms
,
implementation
1400
x8340
710C
Magic Odd Square
constructive algorithms
,
math
1500
x4954
708B
Recover the String
constructive algorithms
,
greedy
,
implementation
,
math
1900
x3188
708A
Letters Cyclic Shift
constructive algorithms
,
greedy
,
implementation
,
strings
1200
x8824
698B
Fix a Tree
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
trees
1700
x5580
690F2
Tree of Life (medium)
constructive algorithms
,
hashing
,
trees
2700
x76
689A
Mike and Cellphone
brute force
,
constructive algorithms
,
implementation
1400
x5174
688B
Lovely Palindromes
constructive algorithms
,
math
1000
x29847
686B
Little Robber Girl's Zoo
constructive algorithms
,
implementation
,
sortings
1100
x7604
686A
Free Ice Cream
constructive algorithms
,
implementation
800
x34988
682A
Alyona and Numbers
constructive algorithms
,
math
,
number theory
1100
x20212
681D
Gifts by the List
constructive algorithms
,
dfs and similar
,
graphs
,
trees
2000
x1712
681C
Heap Operations
constructive algorithms
,
data structures
,
greedy
1600
x7092
680B
Bear and Finding Criminals
constructive algorithms
,
implementation
1000
x23160
680A
Bear and Five Cards
constructive algorithms
,
implementation
800
x12106
679A
Bear and Prime 100
constructive algorithms
,
interactive
,
math
1400
x11972
676A
Nicholas and Permutation
constructive algorithms
,
implementation
800
x13586
675C
Money Transfers
constructive algorithms
,
data structures
,
greedy
,
sortings
2100
x3409
675B
Restoring Painting
brute force
,
constructive algorithms
,
math
1400
x7259
672B
Different is Good
constructive algorithms
,
implementation
,
strings
1000
x16971
670F
Restore a Number
brute force
,
constructive algorithms
,
strings
2300
x843
670A
Holidays
brute force
,
constructive algorithms
,
greedy
,
math
900
x16331
667B
Coat of Anticubism
constructive algorithms
,
geometry
1100
x5446
665D
Simple Subset
constructive algorithms
,
greedy
,
number theory
1800
x3167
663A
Rebus
constructive algorithms
,
expression parsing
,
greedy
,
math
1800
x3217
662D
International Olympiad
constructive algorithms
,
greedy
,
implementation
,
math
2000
x1614
659B
Qualifying Contest
constructive algorithms
,
sortings
1300
x6169
652F
Ants on a Circle
constructive algorithms
,
math
2800
x515
649D
Дефрагментация памяти
constructive algorithms
,
greedy
,
implementation
1600
x341
649C
Печать условий
constructive algorithms
,
greedy
,
sortings
1500
x435
649B
Этажи
constructive algorithms
1400
x516
649A
Любимые числа Поликарпа
constructive algorithms
,
implementation
1000
x1073
648C
Путь Робота
constructive algorithms
,
dfs and similar
,
graphs
1100
x804
648B
Собери стол
constructive algorithms
,
sortings
800
x1164
648A
Наибольший подъем
constructive algorithms
,
implementation
900
x557
645A
Amity Assessment
brute force
,
constructive algorithms
,
implementation
1200
x3348
644B
Processing Queries
*special problem
,
constructive algorithms
,
data structures
,
two pointers
1700
x2590
644A
Parliament of Berland
*special problem
,
constructive algorithms
1000
x4362
643B
Bear and Two Paths
constructive algorithms
,
graphs
1600
x3131
641C
Little Artem and Dance
brute force
,
constructive algorithms
,
implementation
1800
x2833
639B
Bear and Forgotten Tree 3
constructive algorithms
,
graphs
,
trees
1600
x6367
638A
Home Numbers
*special problem
,
constructive algorithms
,
math
1100
x3740
637C
Promocodes with Mistakes
*special problem
,
brute force
,
constructive algorithms
,
implementation
1400
x2406
637B
Chat Order
*special problem
,
binary search
,
constructive algorithms
,
data structures
,
sortings
1200
x14822
637A
Voting for Photos
*special problem
,
constructive algorithms
,
implementation
1000
x5268
634A
Island Puzzle
constructive algorithms
,
implementation
1300
x3074
633E
Startup Funding
binary search
,
constructive algorithms
,
data structures
,
probabilities
,
two pointers
2400
x566
633B
A Trivial Problem
brute force
,
constructive algorithms
,
math
,
number theory
1300
x6497
632B
Alice, Bob, Two Teams
brute force
,
constructive algorithms
1400
x3872
631B
Print Check
constructive algorithms
,
implementation
1200
x7229
629A
Far Relative’s Birthday Cake
brute force
,
combinatorics
,
constructive algorithms
,
implementation
800
x13040
626B
Cards
constructive algorithms
,
dp
,
math
1300
x6482
625D
Finals in arithmetic
constructive algorithms
,
implementation
,
math
2400
x620
625C
K-special Tables
constructive algorithms
,
implementation
1300
x6631
625B
War of the Corporations
constructive algorithms
,
greedy
,
strings
1200
x9807
623A
Graph and String
constructive algorithms
,
graphs
1800
x4302
622D
Optimal Number Permutation
constructive algorithms
1900
x2780
621D
Rat Kwesh and Cheese
brute force
,
constructive algorithms
,
math
2400
x959
618F
Double Knapsack
constructive algorithms
,
two pointers
3000
x1296
618B
Guess the Permutation
constructive algorithms
1100
x7797
617D
Polyline
constructive algorithms
,
implementation
1700
x4120
613C
Necklace
constructive algorithms
,
math
2500
x970
612E
Square Root of Permutation
combinatorics
,
constructive algorithms
,
dfs and similar
,
graphs
,
math
2200
x1570
611H
New Year and Forgotten Tree
constructive algorithms
,
flows
,
graphs
3200
x574
610D
Vika and Segments
constructive algorithms
,
data structures
,
geometry
,
two pointers
2300
x1416
610C
Harmony Analysis
constructive algorithms
1800
x2776
610B
Vika and Squares
constructive algorithms
,
implementation
1300
x7015
609B
The Best Gift
constructive algorithms
,
implementation
1100
x8728
605B
Lazy Student
constructive algorithms
,
data structures
,
graphs
1700
x3375
605A
Sorting Railway Cars
constructive algorithms
,
greedy
1600
x7010
600C
Make Palindrome
constructive algorithms
,
greedy
,
strings
1800
x5597
595A
Vitaly and Night
constructive algorithms
,
implementation
800
x14233
593C
Beautiful Function
constructive algorithms
,
math
2200
x271
584E
Anton and Ira
constructive algorithms
,
greedy
,
math
2300
x1392
584C
Marina and Vasya
constructive algorithms
,
greedy
,
strings
1700
x6049
582B
Once Again...
constructive algorithms
,
dp
,
matrices
1900
x3291
582A
GCD Table
constructive algorithms
,
greedy
,
number theory
1700
x7493
581D
Three Logos
bitmasks
,
brute force
,
constructive algorithms
,
geometry
,
implementation
,
math
1700
x3389
578E
Walking!
constructive algorithms
,
greedy
2700
x603
576C
Points on Plane
constructive algorithms
,
divide and conquer
,
geometry
,
greedy
,
sortings
2100
x3191
576B
Invariance of Tree
constructive algorithms
,
dfs and similar
,
greedy
,
trees
2100
x1569
575D
Tablecity
constructive algorithms
,
implementation
1700
x1802
573C
Bear and Drawing
constructive algorithms
,
dfs and similar
,
trees
2300
x949
571C
CNF 2
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
2500
x608
570D
Tree Requests
binary search
,
bitmasks
,
constructive algorithms
,
dfs and similar
,
graphs
,
trees
2200
x6526
570C
Replacement
constructive algorithms
,
data structures
,
implementation
1600
x8812
570B
Simple Game
constructive algorithms
,
games
,
greedy
,
implementation
,
math
1300
x15686
566E
Restoring Map
bitmasks
,
constructive algorithms
,
trees
3200
x597
566B
Replicating Processes
constructive algorithms
,
greedy
2600
x252
←
1
2
...
12
13
14
15
16
17
→
User lists
Name