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Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)
07:44:18
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2024-2025 ICPC Asia Jakarta Regional Contest (Unrated, Online Mirror, ICPC Rules, Teams Preferred)
22:14:18
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→ Filter Problems
Difficulty:
—
greedy
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
#
Name
1348D
Phoenix and Science
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
1900
x8919
1348C
Phoenix and Distribution
constructive algorithms
,
greedy
,
sortings
,
strings
1600
x14701
1348B
Phoenix and Beauty
constructive algorithms
,
data structures
,
greedy
,
sortings
1400
x25572
1348A
Phoenix and Balance
greedy
,
math
800
x39821
1346F
Dune II: Battle For Arrakis
*special problem
,
data structures
,
greedy
,
math
2000
x228
1346D
Constructing the Dungeon
*special problem
,
graphs
,
greedy
1600
x507
1346C
Spring Cleaning
*special problem
,
greedy
,
sortings
1600
x608
1346B
Boot Camp
*special problem
,
greedy
1400
x1211
1344D
Résumé Review
binary search
,
greedy
,
math
2700
x1174
1343F
Restore the Permutation by Sorted Segments
brute force
,
constructive algorithms
,
data structures
,
greedy
,
implementation
2400
x1274
1343E
Weights Distributing
brute force
,
graphs
,
greedy
,
shortest paths
,
sortings
2100
x5232
1343D
Constant Palindrome Sum
brute force
,
data structures
,
greedy
,
two pointers
1700
x12769
1343C
Alternating Subsequence
dp
,
greedy
,
two pointers
1200
x38805
1342D
Multiple Testcases
binary search
,
constructive algorithms
,
data structures
,
greedy
,
sortings
,
two pointers
1900
x6134
1342A
Road To Zero
greedy
,
math
1000
x41065
1341B
Nastya and Door
greedy
,
implementation
1300
x19769
1340B
Nastya and Scoreboard
bitmasks
,
dp
,
graphs
,
greedy
1700
x7881
1340A
Nastya and Strange Generator
brute force
,
data structures
,
greedy
,
implementation
1500
x13433
1338B
Edge Weight Assignment
bitmasks
,
constructive algorithms
,
dfs and similar
,
greedy
,
math
,
trees
1800
x8525
1338A
Powered Addition
greedy
,
math
1500
x24393
1337B
Kana and Dragon Quest game
greedy
,
implementation
,
math
900
x34477
1336B
Xenia and Colorful Gems
binary search
,
greedy
,
math
,
sortings
,
two pointers
1700
x11420
1336A
Linova and Kingdom
dfs and similar
,
dp
,
greedy
,
sortings
,
trees
1600
x20651
1335F
Robots on a Grid
data structures
,
dfs and similar
,
dsu
,
graphs
,
greedy
,
matrices
2200
x2206
1335C
Two Teams Composing
binary search
,
greedy
,
implementation
,
sortings
1100
x34990
1334F
Strange Function
binary search
,
data structures
,
dp
,
greedy
2500
x1326
1334E
Divisor Paths
combinatorics
,
graphs
,
greedy
,
math
,
number theory
2200
x2860
1334D
Minimum Euler Cycle
constructive algorithms
,
graphs
,
greedy
,
implementation
1800
x7354
1334C
Circle of Monsters
brute force
,
constructive algorithms
,
greedy
,
math
1600
x16752
1334B
Middle Class
greedy
,
sortings
1100
x25988
1333F
Kate and imperfection
greedy
,
implementation
,
math
,
number theory
,
sortings
,
two pointers
2200
x4293
1333D
Challenges in school №41
brute force
,
constructive algorithms
,
games
,
graphs
,
greedy
,
implementation
,
sortings
2100
x3951
1333B
Kind Anton
greedy
,
implementation
1100
x21665
1332C
K-Complete Word
dfs and similar
,
dsu
,
greedy
,
implementation
,
strings
1500
x16844
1332B
Composite Coloring
brute force
,
constructive algorithms
,
greedy
,
math
,
number theory
1400
x17693
1332A
Exercising Walk
greedy
,
implementation
,
math
1100
x19447
1329E
Dreamoon Loves AA
binary search
,
greedy
3300
x186
1329C
Drazil Likes Heap
constructive algorithms
,
data structures
,
greedy
,
implementation
2400
x1716
1329A
Dreamoon Likes Coloring
constructive algorithms
,
greedy
,
implementation
,
math
1800
x9187
1328F
Make k Equal
greedy
2200
x3270
1328D
Carousel
constructive algorithms
,
dp
,
graphs
,
greedy
,
math
1800
x13308
1328C
Ternary XOR
greedy
,
implementation
1200
x30691
1327B
Princesses and Princes
brute force
,
graphs
,
greedy
1200
x18761
1326D2
Prefix-Suffix Palindrome (Hard version)
binary search
,
greedy
,
hashing
,
string suffix structures
,
strings
1800
x10276
1326C
Permutation Partitions
combinatorics
,
greedy
,
math
1300
x15688
1325F
Ehab's Last Theorem
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
2500
x2003
1325D
Ehab the Xorcist
bitmasks
,
constructive algorithms
,
greedy
,
number theory
1700
x12212
1325C
Ehab and Path-etic MEXs
constructive algorithms
,
dfs and similar
,
greedy
,
trees
1500
x13816
1325B
CopyCopyCopyCopyCopy
greedy
,
implementation
800
x36265
1325A
EhAb AnD gCd
constructive algorithms
,
greedy
,
number theory
800
x40620
1324C
Frog Jumps
binary search
,
data structures
,
dfs and similar
,
greedy
,
implementation
1100
x28170
1323B
Count Subrectangles
binary search
,
greedy
,
implementation
1500
x9116
1323A
Even Subset Sum Problem
brute force
,
dp
,
greedy
,
implementation
800
x19891
1322A
Unusual Competitions
greedy
1300
x12459
1321C
Remove Adjacent
brute force
,
constructive algorithms
,
greedy
,
strings
1600
x9893
1321A
Contest for Robots
greedy
900
x14349
1320A
Journey Planning
data structures
,
dp
,
greedy
,
math
,
sortings
1400
x16630
1316E
Team Building
bitmasks
,
dp
,
greedy
,
sortings
2300
x4188
1315C
Restoring Permutation
greedy
1200
x10115
1315B
Homecoming
binary search
,
dp
,
greedy
,
strings
1300
x9234
1313C2
Skyscrapers (hard version)
data structures
,
dp
,
greedy
1900
x6558
1313C1
Skyscrapers (easy version)
brute force
,
data structures
,
dp
,
greedy
1500
x10484
1313B
Different Rules
constructive algorithms
,
greedy
,
implementation
,
math
1700
x6716
1313A
Fast Food Restaurant
brute force
,
greedy
,
implementation
900
x15574
1312E
Array Shrinking
dp
,
greedy
2100
x6062
1312C
Adding Powers
bitmasks
,
greedy
,
implementation
,
math
,
number theory
,
ternary search
1400
x16672
1312A
Two Regular Polygons
geometry
,
greedy
,
math
,
number theory
800
x26066
1311A
Add Odd or Subtract Even
greedy
,
implementation
,
math
800
x42413
1310A
Recommendations
data structures
,
greedy
,
sortings
1700
x5191
1307E
Cow and Treats
binary search
,
combinatorics
,
dp
,
greedy
,
implementation
,
math
2500
x1289
1307D
Cow and Fields
binary search
,
data structures
,
dfs and similar
,
graphs
,
greedy
,
shortest paths
,
sortings
1900
x6470
1307B
Cow and Friend
geometry
,
greedy
,
math
1300
x13342
1307A
Cow and Haybales
greedy
,
implementation
800
x15001
1305H
Kuroni the Private Tutor
binary search
,
greedy
3500
x121
1305E
Kuroni and the Score Distribution
constructive algorithms
,
greedy
,
implementation
,
math
2200
x3139
1305B
Kuroni and Simple Strings
constructive algorithms
,
greedy
,
strings
,
two pointers
1200
x11805
1305A
Kuroni and the Gifts
brute force
,
constructive algorithms
,
greedy
,
sortings
800
x14142
1304F2
Animal Observation (hard version)
data structures
,
dp
,
greedy
2400
x1558
1304D
Shortest and Longest LIS
constructive algorithms
,
graphs
,
greedy
,
two pointers
1800
x6358
1304C
Air Conditioner
dp
,
greedy
,
implementation
,
sortings
,
two pointers
1500
x16505
1304B
Longest Palindrome
brute force
,
constructive algorithms
,
greedy
,
implementation
,
strings
1100
x17954
1303D
Fill The Bag
bitmasks
,
greedy
1900
x7187
1303C
Perfect Keyboard
dfs and similar
,
greedy
,
implementation
1600
x12217
1301C
Ayoub's function
binary search
,
combinatorics
,
greedy
,
math
,
strings
1700
x9387
1301B
Motarack's Birthday
binary search
,
greedy
,
ternary search
1500
x14355
1300B
Assigning to Classes
greedy
,
implementation
,
sortings
1000
x23724
1299C
Water Balance
data structures
,
geometry
,
greedy
2100
x3973
1299A
Anu Has a Function
brute force
,
greedy
,
math
1500
x12081
1297F
Movie Fan
*special problem
,
data structures
,
greedy
,
implementation
,
sortings
x117
1297D
Bonus Distribution
*special problem
,
binary search
,
greedy
,
sortings
x262
1297C
Dream Team
*special problem
,
greedy
x400
1296F
Berland Beauty
constructive algorithms
,
dfs and similar
,
greedy
,
sortings
,
trees
2100
x2921
1296E1
String Coloring (easy version)
constructive algorithms
,
dp
,
graphs
,
greedy
,
sortings
1800
x7545
1296D
Fight with Monsters
greedy
,
sortings
1500
x14410
1295C
Obtain The String
dp
,
greedy
,
strings
1600
x13023
1295A
Display The Number
greedy
900
x22958
1294F
Three Paths on a Tree
dfs and similar
,
dp
,
greedy
,
trees
2000
x5874
1294E
Obtain a Permutation
greedy
,
implementation
,
math
1900
x4970
1294D
MEX maximizing
data structures
,
greedy
,
implementation
,
math
1600
x11822
1294C
Product of Three Numbers
greedy
,
math
,
number theory
1300
x35466
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