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109 problems · filtered by 3 tags
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Name
✎
Rating
↕
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2244E
Masha and the Garland
data structures
dp
greedy
implementation
math
number theory
strings
+
unrated
7.6k
2242B
Predominant Frequency Division
data structures
greedy
implementation
math
+
1000
16.1k
2241G
Summmon
binary search
data structures
greedy
implementation
math
number theory
+
2400
831
2230E
Minimum Influence
binary search
data structures
greedy
implementation
math
sortings
two pointers
+
2100
1.5k
2228E2
Amanojaku and Sequence (Hard Version)
combinatorics
data structures
implementation
math
+
2500
307
2219D
MEX Replacement on Tree
data structures
implementation
math
trees
+
2700
533
2185D
OutOfMemoryError
data structures
implementation
math
two pointers
+
1100
21.9k
2185G
Mixing MEXes
data structures
implementation
math
+
1800
3.7k
2179H
Blackslex and Plants
bitmasks
data structures
dp
implementation
math
+
2200
1.4k
2152G
Query Jungle
data structures
implementation
math
matrices
trees
+
2900
2.7k
2133A
Redstone?
brute force
data structures
implementation
math
+
800
31.9k
2118D2
Red Light, Green Light (Hard version)
binary search
brute force
data structures
dfs and similar
dp
graphs
implementation
math
number theory
+
2200
2.6k
2094G
Chimpanzini Bananini
data structures
implementation
math
+
1700
8.1k
2077D
Maximum Polygon
brute force
data structures
greedy
implementation
math
+
3100
393
2071D2
Infinite Sequence (Hard Version)
bitmasks
brute force
constructive algorithms
data structures
dp
implementation
math
+
2500
1.1k
2063D
Game With Triangles
binary search
brute force
data structures
geometry
greedy
implementation
math
ternary search
two pointers
+
2000
5.2k
2063F1
Counting Is Not Fun (Easy Version)
combinatorics
data structures
dfs and similar
dp
dsu
graphs
hashing
implementation
math
trees
+
2400
1.6k
2057D
Gifts Order
data structures
greedy
implementation
math
matrices
+
2000
5.5k
2053F
Earnest Matrix Complement
brute force
data structures
dp
greedy
implementation
math
+
2600
963
2048F
Kevin and Math Class
brute force
data structures
divide and conquer
dp
implementation
math
trees
+
2500
1.3k
2044H
Hard Demon Problem
constructive algorithms
data structures
dp
implementation
math
+
2100
2.7k
2035D
Yet Another Real Number Problem
binary search
data structures
divide and conquer
greedy
implementation
math
+
1800
5.9k
2032E
Balanced
constructive algorithms
data structures
greedy
implementation
math
+
2400
1.4k
2031E
Penchick and Chloe's Trees
data structures
dfs and similar
dp
greedy
implementation
math
sortings
trees
+
2100
2.8k
2030E
MEXimize the Score
combinatorics
data structures
dp
greedy
implementation
math
+
2200
2k
2026D
Sums of Segments
binary search
data structures
dp
implementation
math
+
1900
6.1k
2025D
Attribute Checks
brute force
data structures
dp
implementation
math
two pointers
+
1800
8k
2021E1
Digital Village (Easy Version)
brute force
data structures
dfs and similar
dp
dsu
fft
graphs
greedy
implementation
math
trees
+
2300
2k
2006D
Iris and Adjacent Products
data structures
greedy
implementation
math
+
2600
997
1996E
Decode
combinatorics
data structures
implementation
math
+
1600
12.9k
1982D
Beauty of the mountains
brute force
data structures
implementation
math
number theory
+
1700
10.2k
1980E
Permutation of Rows and Columns
constructive algorithms
data structures
greedy
hashing
implementation
math
matrices
sortings
+
1600
13.3k
1978C
Manhattan Permutations
constructive algorithms
data structures
greedy
implementation
math
+
1300
18k
1978D
Elections
data structures
greedy
implementation
math
+
1600
13.9k
1954E
Chain Reaction
binary search
data structures
dsu
greedy
implementation
math
number theory
+
2200
3k
1942F
Farmer John's Favorite Function
brute force
data structures
implementation
math
+
2700
1k
1936B
Pinball
binary search
data structures
implementation
math
two pointers
+
2000
3.6k
1932C
LR-remainders
brute force
data structures
implementation
math
two pointers
+
1400
19.3k
1928F
Digital Patterns
combinatorics
data structures
implementation
math
+
2900
479
1926E
Vlad and an Odd Ordering
binary search
bitmasks
data structures
dp
implementation
math
number theory
+
1500
15.2k
1924B
Space Harbour
data structures
implementation
math
sortings
+
2100
3.4k
1922D
Berserk Monsters
brute force
data structures
dsu
implementation
math
+
1900
6.9k
1921F
Sum of Progression
brute force
data structures
dp
implementation
math
+
1900
5.2k
1917D
Yet Another Inversions Problem
combinatorics
data structures
dp
implementation
math
number theory
+
2300
2.1k
1905D
Cyclic MEX
data structures
implementation
math
two pointers
+
2000
4.8k
1902F
Trees and XOR Queries Again
data structures
dfs and similar
divide and conquer
graphs
implementation
math
trees
+
2400
1.5k
1870C
Colorful Table
binary search
data structures
dp
implementation
math
two pointers
+
1300
13.3k
1860F
Evaluate RBS
data structures
geometry
implementation
math
sortings
+
2900
350
1850G
The Morning Star
combinatorics
data structures
geometry
implementation
math
sortings
+
1500
15.8k
1848B
Vika and the Bridge
binary search
data structures
greedy
implementation
math
sortings
+
1200
26.1k
1844G
Tree Weights
bitmasks
constructive algorithms
data structures
dfs and similar
implementation
math
matrices
number theory
trees
+
3000
1.2k
1834E
MEX of LCM
binary search
data structures
implementation
math
number theory
+
2300
2.9k
1833F
Ira and Flamenco
combinatorics
constructive algorithms
data structures
implementation
math
sortings
two pointers
+
1700
10.6k
1829G
Hits Different
data structures
dp
implementation
math
+
1600
15.9k
1799A
Recent Actions
data structures
greedy
implementation
math
+
800
12.4k
1763B
Incinerate
binary search
brute force
data structures
implementation
math
sortings
+
1200
16.6k
1720E
Misha and Paintings
constructive algorithms
data structures
greedy
implementation
math
+
2700
1k
1715C
Monoblock
combinatorics
data structures
implementation
math
+
1700
10.6k
1710B
Rain
binary search
brute force
data structures
geometry
greedy
implementation
math
+
2100
2.8k
1701F
Points
combinatorics
data structures
implementation
math
matrices
+
2500
1.2k
1687D
Cute number
binary search
brute force
data structures
dsu
implementation
math
+
2900
775
1677B
Tokitsukaze and Meeting
data structures
implementation
math
+
1700
4.6k
1670C
Where is the Pizza?
data structures
dfs and similar
dsu
graphs
implementation
math
+
1400
11.1k
1660F2
Promising String (hard version)
data structures
implementation
math
strings
+
2100
3.2k
1659D
Reverse Sort Sum
constructive algorithms
data structures
greedy
implementation
math
two pointers
+
1900
4.5k
1658E
Gojou and Matrix Game
data structures
dp
games
hashing
implementation
math
number theory
sortings
+
2500
1.3k
1650E
Rescheduling the Exam
binary search
data structures
greedy
implementation
math
sortings
+
1900
4.5k
1644D
Cross Coloring
data structures
implementation
math
+
1700
7.9k
1644E
Expand the Path
brute force
combinatorics
data structures
implementation
math
+
1900
3.5k
1634F
Fibonacci Additions
brute force
data structures
hashing
implementation
math
+
2700
2k
1626C
Monsters And Spells
binary search
data structures
dp
greedy
implementation
math
two pointers
+
1700
12k
1625D
Binary Spiders
bitmasks
data structures
implementation
math
sortings
trees
+
2300
2.4k
1619E
MEX and Increments
constructive algorithms
data structures
dp
greedy
implementation
math
sortings
+
1700
10.3k
1598C
Delete Two Elements
data structures
dp
implementation
math
two pointers
+
1200
23.9k
1598D
Training Session
combinatorics
data structures
geometry
implementation
math
+
1700
10.7k
1598E
Staircases
brute force
combinatorics
data structures
dfs and similar
dp
implementation
math
+
2100
2.5k
1493D
GCD of an Array
brute force
data structures
hashing
implementation
math
number theory
sortings
two pointers
+
2100
5.9k
1430C
Numbers on Whiteboard
constructive algorithms
data structures
greedy
implementation
math
+
1000
28.7k
1402A
Fancy Fence
*special
data structures
dsu
implementation
math
sortings
+
1800
1.4k
1398E
Two Types of Spells
binary search
data structures
greedy
implementation
math
sortings
+
2200
2.6k
1361F
Johnny and New Toy
data structures
implementation
math
+
3300
255
1294D
MEX maximizing
data structures
greedy
implementation
math
+
1600
12.8k
1277D
Let's Play the Words?
data structures
hashing
implementation
math
+
1900
3.3k
1266D
Decreasing Debts
constructive algorithms
data structures
graphs
greedy
implementation
math
two pointers
+
2000
3.9k
1265B
Beautiful Numbers
data structures
implementation
math
two pointers
+
1300
13.7k
1217E
Sum Queries?
data structures
greedy
implementation
math
+
2300
2.1k
1202C
You Are Given a WASD-string...
brute force
data structures
dp
greedy
implementation
math
strings
+
2100
2.8k
1200F
Graph Traveler
brute force
data structures
dfs and similar
dp
graphs
implementation
math
number theory
+
2300
1.2k
1189C
Candies!
data structures
dp
implementation
math
+
1400
11.1k
1179C
Serge and Dining Room
binary search
data structures
graph matchings
greedy
implementation
math
trees
+
2200
2.5k
1163C2
Power Transmission (Hard Edition)
data structures
geometry
implementation
math
+
1900
4k
1104B
Game with string
data structures
implementation
math
+
1200
17.1k
1091E
New Year and the Acquaintance Estimation
binary search
data structures
graphs
greedy
implementation
math
sortings
+
2400
1.1k
1066E
Binary Numbers AND Sum
data structures
implementation
math
+
1700
6.6k
1061C
Multiplicity
data structures
dp
implementation
math
number theory
+
1700
11k
830C
Bamboo Partition
brute force
data structures
implementation
math
number theory
sortings
two pointers
+
2300
1.3k
819B
Mister B and PR Shifts
data structures
implementation
math
+
1900
1.8k
808B
Average Sleep Time
data structures
implementation
math
+
1300
16.2k
776C
Molly's Chemicals
binary search
brute force
data structures
implementation
math
+
1800
6.3k
731F
Video Cards
brute force
data structures
implementation
math
number theory
+
1900
3.2k
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