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)
5 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
1539A
Contest Start
combinatorics
,
geometry
,
greedy
,
math
1000
x20238
1538B
Friends and Candies
greedy
,
math
800
x31794
1538A
Stone Game
brute force
,
dp
,
greedy
800
x37161
1537C
Challenging Cliffs
constructive algorithms
,
greedy
,
implementation
,
math
1200
x27900
1537B
Bad Boy
constructive algorithms
,
greedy
,
math
900
x30495
1537A
Arithmetic Array
greedy
,
math
800
x37565
1536B
Prinzessin der Verurteilung
brute force
,
constructive algorithms
,
strings
1200
x19034
1536A
Omkar and Bad Story
brute force
,
constructive algorithms
800
x20238
1535B
Array Reodering
brute force
,
greedy
,
math
,
number theory
,
sortings
900
x30792
1535A
Fair Playoff
brute force
,
implementation
800
x50260
1534B
Histogram Ugliness
greedy
,
implementation
,
math
1100
x12532
1534A
Colour the Flag
brute force
,
implementation
800
x12776
1530C
Pursuit
binary search
,
brute force
,
greedy
,
sortings
1200
x14715
1530B
Putting Plates
constructive algorithms
,
implementation
800
x15811
1530A
Binary Decimal
greedy
,
math
800
x21136
1529B
Sifid and Strange Subsequences
greedy
,
math
,
sortings
1100
x20622
1529A
Eshag Loves Big Arrays
constructive algorithms
,
greedy
,
math
800
x29858
1527B1
Palindrome Game (easy version)
constructive algorithms
,
games
1200
x26480
1527A
And Then There Were K
bitmasks
800
x36046
1526A
Mean Inequality
constructive algorithms
,
sortings
800
x24258
1525B
Permutation Sort
constructive algorithms
,
greedy
900
x25008
1525A
Potion-making
math
,
number theory
800
x25679
1523B
Lord of the Values
constructive algorithms
1100
x12120
1523A
Game of Life
implementation
800
x13521
1521A
Nastia and Nearly Good Numbers
constructive algorithms
,
math
,
number theory
1000
x37584
1520D
Same Differences
data structures
,
hashing
,
math
1200
x47973
1520C
Not Adjacent Matrix
constructive algorithms
1000
x31993
1520B
Ordinary Numbers
brute force
,
math
,
number theory
800
x44865
1520A
Do Not Be Distracted!
brute force
,
implementation
800
x52270
1519B
The Cake Is a Lie
dp
,
math
800
x31078
1519A
Red and Blue Beans
math
800
x29041
1517B
Morning Jogging
constructive algorithms
,
greedy
,
sortings
1200
x13285
1517A
Sum of 2050
greedy
,
math
800
x25627
1516A
Tit for Tat
greedy
800
x23511
1515B
Phoenix and Puzzle
brute force
,
geometry
,
math
,
number theory
1000
x25125
1515A
Phoenix and Gold
constructive algorithms
,
greedy
,
math
800
x20264
1514B
AND 0, Sum Big
bitmasks
,
combinatorics
,
math
1200
x25469
1514A
Perfectly Imperfect Array
math
,
number theory
800
x24292
1513A
Array and Peaks
constructive algorithms
,
implementation
800
x19444
1512D
Corrupted Array
constructive algorithms
,
data structures
,
greedy
1200
x22735
1512C
A-B Palindrome
constructive algorithms
,
implementation
,
strings
1200
x20341
1512B
Almost Rectangle
implementation
800
x25494
1512A
Spy Detected!
brute force
,
implementation
800
x65303
1511C
Yet Another Card Deck
brute force
,
data structures
,
implementation
,
trees
1100
x24261
1511B
GCD Length
constructive algorithms
,
math
,
number theory
1100
x23032
1511A
Review Site
greedy
800
x27752
1510K
King's Task
brute force
,
graphs
,
implementation
1200
x5517
1509B
TMT Document
greedy
1100
x21694
1509A
Average Height
constructive algorithms
800
x26081
1506C
Double-ended Strings
brute force
,
implementation
,
strings
1000
x25524
1506B
Partial Replacement
greedy
,
implementation
1100
x20290
1506A
Strange Table
math
800
x30770
1505A
Is it rated - 2
*special problem
,
implementation
,
interactive
900
x14626
1504B
Flip the Bits
constructive algorithms
,
greedy
,
implementation
,
math
1200
x18823
1504A
Déjà Vu
constructive algorithms
,
strings
800
x21781
1501B
Napoleon Cake
dp
,
implementation
,
sortings
900
x19313
1501A
Alexey and Train
implementation
800
x11647
1499B
Binary Removals
brute force
,
dp
,
greedy
,
implementation
1000
x20852
1499A
Domino on Windowsill
combinatorics
,
constructive algorithms
,
math
800
x21312
1498A
GCD Sum
brute force
,
math
800
x23366
1497C1
k-LCM (easy version)
constructive algorithms
,
math
1200
x26092
1497B
M-arrays
constructive algorithms
,
greedy
,
math
1200
x20245
1497A
Meximization
brute force
,
data structures
,
greedy
,
sortings
800
x24565
1496B
Max and Mex
math
1100
x17607
1496A
Split it!
brute force
,
constructive algorithms
,
greedy
,
strings
900
x21037
1495A
Diamond Miner
geometry
,
greedy
,
math
,
sortings
1200
x17158
1494A
ABC String
bitmasks
,
brute force
,
implementation
900
x20977
1493A
Anti-knapsack
constructive algorithms
,
greedy
800
x19347
1492B
Card Deck
data structures
,
greedy
,
math
1100
x18526
1492A
Three swimmers
math
800
x22749
1491B
Minimal Cost
brute force
,
math
1200
x13847
1491A
K-th Largest Value
brute force
,
greedy
,
implementation
800
x18292
1490D
Permutation Transformation
dfs and similar
,
divide and conquer
,
implementation
1200
x19663
1490C
Sum of Cubes
binary search
,
brute force
,
brute force
,
math
1100
x33732
1490B
Balanced Remainders
brute force
,
constructive algorithms
,
math
1000
x26333
1490A
Dense Array
greedy
,
math
800
x31315
1488A
From Zero To Y
*special problem
,
math
900
x1434
1487B
Cat Cycle
math
,
number theory
1200
x21401
1487A
Arena
implementation
,
sortings
800
x26613
1486A
Shifting Stacks
greedy
,
implementation
900
x25531
1485B
Replace and Keep Sorted
dp
,
implementation
,
math
1200
x17154
1485A
Add and Divide
brute force
,
greedy
,
math
,
number theory
1000
x22888
1482A
Prison Break
math
800
x20509
1481B
New Colony
brute force
,
greedy
,
implementation
1100
x19332
1481A
Space Navigation
greedy
,
strings
800
x25008
1480B
The Great Hero
greedy
,
implementation
,
sortings
900
x17268
1480A
Yet Another String Game
games
,
greedy
,
strings
800
x25972
1478B
Nezzar and Lucky Number
brute force
,
dp
,
greedy
,
math
1100
x18363
1478A
Nezzar and Colorful Balls
brute force
,
greedy
800
x26599
1476A
K-divisible Sum
binary search
,
constructive algorithms
,
greedy
,
math
1000
x38174
1475B
New Year's Number
brute force
,
dp
,
math
900
x49602
1475A
Odd Divisor
math
,
number theory
900
x62437
1474B
Different Divisors
binary search
,
constructive algorithms
,
greedy
,
math
,
number theory
1000
x29340
1474A
Puzzle From the Future
greedy
800
x22648
1473B
String LCM
brute force
,
math
,
number theory
,
strings
1000
x31749
1473A
Replacing Elements
greedy
,
implementation
,
math
,
sortings
800
x34022
1472D
Even-Odd Game
dp
,
games
,
greedy
,
sortings
1200
x27732
1472C
Long Jumps
dp
,
graphs
1100
x31680
1472B
Fair Division
dp
,
greedy
,
math
800
x51270
1472A
Cards for Friends
greedy
,
math
800
x42249
←
1
2
...
8
9
10
11
12
...
23
24
→
User lists
Name