Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
Rayan
→ Pay attention
Before contest
Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
4 days
Register now »
*has extra registration
→ Filter Problems
Difficulty:
—
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
1725A
Accumulation of Dominoes
math
800
x9316
1722C
Word Game
data structures
,
implementation
800
x31504
1722B
Colourblindness
implementation
800
x47077
1722A
Spell Check
implementation
800
x51949
1721A
Image
greedy
,
implementation
800
x27121
1720B
Interesting Sum
brute force
,
data structures
,
greedy
,
math
,
sortings
800
x21296
1719B
Mathematical Circus
constructive algorithms
,
math
800
x18594
1719A
Chip Game
games
,
math
800
x25674
1717A
Madoka and Strange Thoughts
math
,
number theory
800
x19585
1716B
Permutation Chain
constructive algorithms
,
math
800
x21467
1716A
2-3 Moves
greedy
,
math
800
x33189
1715A
Crossmarket
constructive algorithms
,
greedy
,
math
800
x23607
1714C
Minimum Varied Number
greedy
800
x31228
1714B
Remove Prefix
data structures
,
greedy
,
implementation
800
x30673
1713A
Traveling Salesman Problem
geometry
,
greedy
,
implementation
800
x22047
1712B
Woeful Permutation
constructive algorithms
,
greedy
,
number theory
800
x21675
1712A
Wonderful Permutation
greedy
,
implementation
800
x24163
1711A
Perfect Permutation
constructive algorithms
800
x25270
1709A
Three Doors
brute force
,
greedy
,
implementation
,
math
800
x29750
1708A
Difference Operations
greedy
,
math
800
x21842
1706A
Another String Minimization Problem
2-sat
,
constructive algorithms
,
greedy
,
string suffix structures
,
strings
800
x23059
1705A
Mark the Photographer
greedy
,
sortings
800
x25351
1704A
Two 0-1 Sequences
constructive algorithms
,
greedy
800
x16063
1703C
Cypher
brute force
,
implementation
,
strings
800
x36015
1703B
ICPC Balloons
data structures
,
implementation
800
x50351
1703A
YES or YES?
brute force
,
implementation
,
strings
800
x71704
1702B
Polycarp Writes a String from Memory
greedy
800
x27790
1702A
Round Down the Price
constructive algorithms
800
x35104
1701B
Permutation
greedy
800
x20245
1701A
Grass Field
implementation
800
x26444
1700A
Optimal Path
constructive algorithms
,
greedy
,
math
800
x22954
1699A
The Third Three Number Problem
constructive algorithms
,
math
800
x24087
1698B
Rising Sand
constructive algorithms
,
greedy
,
implementation
800
x20991
1698A
XOR Mixup
bitmasks
,
brute force
800
x29429
1697A
Parkway Walk
greedy
,
implementation
800
x25811
1696A
NIT orz!
bitmasks
,
greedy
800
x18894
1695A
Subrectangle Guess
games
800
x16392
1694A
Creep
greedy
,
implementation
800
x22749
1692C
Where's the Bishop?
implementation
800
x34615
1692B
All Distinct
greedy
,
sortings
800
x34591
1692A
Marathon
implementation
800
x66834
1691A
Beat The Odds
brute force
,
greedy
,
math
800
x30693
1690C
Restoring the Duration of Tasks
data structures
,
greedy
,
implementation
800
x26321
1690B
Array Decrements
greedy
,
implementation
800
x25556
1690A
Print a Pedestal (Codeforces logo?)
constructive algorithms
,
greedy
800
x33742
1689A
Lex String
brute force
,
greedy
,
implementation
,
sortings
,
two pointers
800
x16843
1688B
Patchouli's Magical Talisman
bitmasks
,
constructive algorithms
,
greedy
,
sortings
800
x18339
1688A
Cirno's Perfect Bitmasks Classroom
bitmasks
,
brute force
800
x21792
1686B
Odd Subarrays
dp
,
greedy
800
x18345
1686A
Everything Everywhere All But One
greedy
800
x20525
1684B
Z mod X = C
constructive algorithms
,
math
800
x21065
1684A
Digit Minimization
constructive algorithms
,
games
,
math
,
strings
800
x23997
1682A
Palindromic Indices
greedy
,
strings
800
x19332
1681B
Card Trick
implementation
,
math
800
x20179
1681A
Game with Cards
games
,
greedy
800
x21055
1680B
Robots
implementation
800
x18448
1680A
Minimums and Maximums
brute force
,
math
800
x21659
1678B1
Tokitsukaze and Good 01-String (easy version)
implementation
800
x15985
1678A
Tokitsukaze and All Zero Sequence
implementation
800
x18238
1676C
Most Similar Words
brute force
,
greedy
,
implementation
,
implementation
,
math
,
strings
800
x30465
1676B
Equal Candies
greedy
,
math
,
sortings
800
x49382
1676A
Lucky?
implementation
800
x65694
1675A
Food for Animals
greedy
,
math
800
x33527
1674B
Dictionary
combinatorics
,
math
800
x26567
1674A
Number Transformation
constructive algorithms
,
math
800
x26442
1673A
Subtle Substring Subtraction
games
,
greedy
,
strings
800
x18480
1672B
I love AAAB
constructive algorithms
,
implementation
800
x15905
1672A
Log Chopping
games
,
implementation
,
math
800
x16164
1671A
String Building
implementation
800
x20582
1670A
Prof. Slim
greedy
,
implementation
,
sortings
800
x15475
1669C
Odd/Even Increments
greedy
,
greedy
,
implementation
,
math
800
x35303
1669B
Triple
implementation
,
sortings
800
x44239
1669A
Division?
implementation
800
x65105
1668A
Direction Change
implementation
,
math
800
x16359
1665A
GCD vs LCM
constructive algorithms
,
math
800
x23760
1661A
Array Balancing
greedy
,
math
800
x18431
1660B
Vlad and Candies
math
800
x28225
1660A
Vasya and Coins
greedy
,
math
800
x36274
1658B
Marin and Anti-coprime Permutation
combinatorics
,
math
,
number theory
800
x18665
1658A
Marin and Photoshoot
constructive algorithms
,
implementation
,
math
800
x20379
1657B
XY Sequence
greedy
800
x22922
1657A
Integer Moves
brute force
,
math
800
x24056
1656A
Good Pairs
math
,
sortings
800
x19725
1654B
Prefix Removals
strings
800
x15660
1654A
Maximum Cake Tastiness
brute force
,
greedy
,
implementation
,
sortings
800
x18705
1651B
Prove Him Wrong
constructive algorithms
,
greedy
800
x19702
1651A
Playoff
implementation
800
x25764
1650A
Deletions of Two Adjacent Letters
implementation
,
strings
800
x34922
1649A
Game
implementation
800
x15602
1647A
Madoka and Math Dad
implementation
,
math
800
x22843
1646B
Quality vs Quantity
brute force
,
constructive algorithms
,
greedy
,
sortings
,
two pointers
800
x21284
1646A
Square Counting
math
800
x24375
1644B
Anti-Fibonacci Permutation
brute force
,
constructive algorithms
,
implementation
800
x20745
1644A
Doors and Keys
implementation
800
x27458
1642A
Hard Way
geometry
800
x16246
1638A
Reverse
constructive algorithms
,
greedy
,
math
800
x21522
1637A
Sorting Parts
brute force
,
sortings
800
x22418
1635B
Avoid Local Maximums
greedy
800
x17961
1635A
Min Or Sum
bitmasks
,
greedy
800
x23075
1634A
Reverse and Concatenate
greedy
,
strings
800
x23961
←
1
2
3
4
5
6
...
8
9
→
User lists
Name