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109 problems · filtered by 3 tags
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Name
✎
Rating
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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
2228C1
Cirno and Number (Easy Version)
binary search
brute force
dp
greedy
implementation
+
1500
8k
2228C2
Cirno and Number (Hard Version)
binary search
dfs and similar
dp
greedy
implementation
+
1600
6.1k
2227D
Palindromex
binary search
brute force
constructive algorithms
data structures
greedy
implementation
two pointers
+
1200
13.9k
2185E
The Robotic Rush
binary search
greedy
implementation
two pointers
+
1500
11k
2171D
Rae Taylor and Trees (easy version)
binary search
data structures
dp
dsu
greedy
implementation
trees
+
1400
12.3k
2171F
Rae Taylor and Trees (hard version)
binary search
constructive algorithms
data structures
dp
dsu
greedy
implementation
trees
+
1600
7.6k
2169D2
Removal of a Sequence (Hard Version)
binary search
divide and conquer
greedy
implementation
math
number theory
+
2100
2.4k
2167E
khba Loves to Sleep!
binary search
data structures
geometry
greedy
implementation
+
1600
9.6k
2157E
Adjusting Drones
binary search
brute force
data structures
dp
dsu
greedy
implementation
sortings
+
1900
4.6k
2156B
Strange Machine
binary search
brute force
greedy
implementation
+
1000
21.6k
2113D
Cheater
binary search
constructive algorithms
greedy
implementation
+
2200
3k
2111E
Changing the String
binary search
data structures
greedy
implementation
sortings
strings
+
1900
5.5k
2108C
Neo's Escape
binary search
brute force
data structures
dp
dsu
graphs
greedy
implementation
+
1500
15.1k
2103C
Median Splits
binary search
greedy
implementation
sortings
+
1600
11k
2066E
Tropical Season
binary search
data structures
greedy
implementation
+
3300
429
2063D
Game With Triangles
binary search
brute force
data structures
geometry
greedy
implementation
math
ternary search
two pointers
+
2000
5.2k
2044E
Insane Problem
binary search
greedy
implementation
math
number theory
+
1300
18.6k
2042E
Vertex Pairs
binary search
brute force
data structures
dfs and similar
divide and conquer
greedy
implementation
trees
+
2900
535
2035D
Yet Another Real Number Problem
binary search
data structures
divide and conquer
greedy
implementation
math
+
1800
5.9k
2035E
Monster
binary search
brute force
constructive algorithms
greedy
implementation
math
ternary search
+
2300
2k
2031D
Penchick and Desert Rabbit
binary search
data structures
dfs and similar
dp
dsu
greedy
implementation
two pointers
+
1700
10.1k
2030F
Orangutan Approved Subarrays
binary search
data structures
dp
greedy
implementation
two pointers
+
2400
1.2k
2027D1
The Endspeaker (Easy Version)
binary search
dp
graphs
greedy
implementation
two pointers
+
1700
7.1k
2027D2
The Endspeaker (Hard Version)
binary search
data structures
dp
greedy
implementation
two pointers
+
2200
1.9k
2026C
Action Figures
binary search
brute force
constructive algorithms
data structures
greedy
implementation
+
1500
12.9k
2025C
New Game
binary search
brute force
greedy
implementation
sortings
two pointers
+
1300
19.4k
2018B
Speedbreaker
binary search
data structures
dp
greedy
implementation
two pointers
+
1900
5.3k
2013F1
Game in Tree (Easy Version)
binary search
brute force
data structures
dp
games
greedy
implementation
trees
+
2700
679
2004D
Colored Portals
binary search
brute force
data structures
graphs
greedy
implementation
shortest paths
+
1600
13.5k
1998C
Perform Operations to Maximize Score
binary search
brute force
constructive algorithms
greedy
implementation
+
1900
7.2k
1998E2
Eliminating Balls With Merging (Hard Version)
binary search
brute force
data structures
divide and conquer
greedy
implementation
+
2500
927
1983C
Have Your Cake and Eat It Too
binary search
brute force
greedy
implementation
+
1400
14.9k
1976C
Job Interview
binary search
dp
greedy
implementation
two pointers
+
1600
12.6k
1967A
Permutation Counting
binary search
greedy
implementation
math
sortings
+
1400
15.2k
1954E
Chain Reaction
binary search
data structures
dsu
greedy
implementation
math
number theory
+
2200
3k
1946C
Tree Cutting
binary search
dp
greedy
implementation
trees
+
1600
14.1k
1942D
Learning to Paint
binary search
data structures
dfs and similar
dp
greedy
implementation
sortings
+
2100
3.4k
1935F
Andrey's Tree
binary search
constructive algorithms
data structures
dfs and similar
dsu
greedy
implementation
trees
+
2800
634
1923F
Shrink-Reverse
binary search
brute force
greedy
hashing
implementation
string suffix structures
strings
+
2800
544
1901D
Yet Another Monster Fight
binary search
dp
greedy
implementation
math
+
1700
8.8k
1848B
Vika and the Bridge
binary search
data structures
greedy
implementation
math
sortings
+
1200
26.1k
1837F
Editorial for Two
binary search
data structures
greedy
implementation
+
2400
2.7k
1832D1
Red-Blue Operations (Easy Version)
binary search
greedy
implementation
math
+
2100
3.5k
1832D2
Red-Blue Operations (Hard Version)
binary search
constructive algorithms
greedy
implementation
math
+
2400
2.4k
1809F
Traveling in Berland
binary search
data structures
graphs
greedy
implementation
+
2500
972
1793D
Moscow Gorillas
binary search
dp
greedy
implementation
math
two pointers
+
1800
7.2k
1781E
Rectangle Shrinking
binary search
brute force
data structures
greedy
implementation
two pointers
+
2300
1.5k
1772G
Gaining Rating
binary search
greedy
implementation
math
sortings
two pointers
+
2200
1.6k
1765H
Hospital Queue
binary search
graphs
greedy
implementation
+
2200
1.6k
1749C
Number Game
binary search
data structures
games
greedy
implementation
+
1400
15.9k
1732C2
Sheikh (Hard Version)
binary search
bitmasks
brute force
greedy
implementation
two pointers
+
2100
3.2k
1730B
Meeting on the Line
binary search
geometry
greedy
implementation
math
ternary search
+
1600
18k
1710B
Rain
binary search
brute force
data structures
geometry
greedy
implementation
math
+
2100
2.8k
1707A
Doremy's IQ
binary search
constructive algorithms
greedy
implementation
+
1600
15.7k
1701C
Schedule Management
binary search
greedy
implementation
two pointers
+
1400
25k
1697C
awoo's Favorite Problem
binary search
constructive algorithms
data structures
greedy
implementation
strings
two pointers
+
1400
15.9k
1670D
Very Suspicious
binary search
brute force
geometry
greedy
implementation
math
+
1700
5.7k
1659C
Line Empire
binary search
brute force
dp
greedy
implementation
math
+
1500
15.8k
1650E
Rescheduling the Exam
binary search
data structures
greedy
implementation
math
sortings
+
1900
4.5k
1628A
Meximum Array
binary search
constructive algorithms
greedy
implementation
math
two pointers
+
1400
17.2k
1626C
Monsters And Spells
binary search
data structures
dp
greedy
implementation
math
two pointers
+
1700
12k
1621E
New School
binary search
data structures
dp
greedy
implementation
sortings
+
2300
2k
1610E
AmShZ and G.O.A.T.
binary search
brute force
greedy
implementation
math
+
2300
2.1k
1605E
Array Equalizer
binary search
greedy
implementation
math
number theory
sortings
two pointers
+
2400
1.2k
1574D
The Strongest Build
binary search
brute force
data structures
dfs and similar
graphs
greedy
hashing
implementation
+
2000
4.9k
1554C
Mikasa
binary search
bitmasks
greedy
implementation
+
1800
9.9k
1539D
PriceFixed
binary search
greedy
implementation
sortings
two pointers
+
1600
12.9k
1539E
Game with Cards
binary search
constructive algorithms
data structures
dp
greedy
implementation
+
2500
1.1k
1537E1
Erase and Extend (Easy Version)
binary search
brute force
dp
greedy
hashing
implementation
string suffix structures
strings
two pointers
+
1600
16.9k
1535C
Unstable String
binary search
dp
greedy
implementation
strings
two pointers
+
1400
17.9k
1514D
Cut and Stick
binary search
data structures
greedy
implementation
sortings
+
2000
5.1k
1494C
1D Sokoban
binary search
dp
greedy
implementation
two pointers
+
1900
5.8k
1450D
Rating Compression
binary search
data structures
greedy
implementation
two pointers
+
1800
5.9k
1439C
Greedy Shopping
binary search
data structures
divide and conquer
greedy
implementation
+
2600
2.3k
1398E
Two Types of Spells
binary search
data structures
greedy
implementation
math
sortings
+
2200
2.6k
1370D
Odd-Even Subsequence
binary search
dp
dsu
greedy
implementation
+
2000
11.2k
1358D
The Best Vacation
binary search
brute force
greedy
implementation
two pointers
+
1900
8.8k
1358F
Tasty Cookie
binary search
constructive algorithms
greedy
implementation
+
2700
538
1348D
Phoenix and Science
binary search
constructive algorithms
greedy
implementation
math
+
1900
9.4k
1335C
Two Teams Composing
binary search
greedy
implementation
sortings
+
1100
39.7k
1324C
Frog Jumps
binary search
data structures
dfs and similar
greedy
implementation
+
1100
30.8k
1323B
Count Subrectangles
binary search
greedy
implementation
+
1500
12.3k
1307E
Cow and Treats
binary search
combinatorics
dp
greedy
implementation
math
+
2500
1.5k
1237C2
Balanced Removals (Harder)
binary search
constructive algorithms
divide and conquer
greedy
implementation
sortings
+
1900
4.6k
1208D
Restore Permutation
binary search
data structures
greedy
implementation
+
1900
5.6k
1203D2
Remove the Substring (hard version)
binary search
greedy
implementation
two pointers
+
1700
8.2k
1201D
Treasure Hunting
binary search
dp
greedy
implementation
+
2100
2.6k
1179C
Serge and Dining Room
binary search
data structures
graph matchings
greedy
implementation
math
trees
+
2200
2.5k
1165F2
Microtransactions (hard version)
binary search
greedy
implementation
+
2000
2.5k
1158A
The Party and Sweets
binary search
constructive algorithms
greedy
implementation
math
sortings
two pointers
+
1500
8.5k
1138A
Sushi for Two
binary search
greedy
implementation
+
900
22.6k
1091E
New Year and the Acquaintance Estimation
binary search
data structures
graphs
greedy
implementation
math
sortings
+
2400
1.1k
825D
Suitable Replacement
binary search
greedy
implementation
+
1500
3.8k
822C
Hacker, pack your bags!
binary search
greedy
implementation
sortings
+
1600
5k
777C
Alyona and Spreadsheet
binary search
data structures
dp
greedy
implementation
two pointers
+
1600
6.9k
777D
Cloud of Hashtags
binary search
greedy
implementation
strings
+
1800
5.3k
732C
Sanatorium
binary search
constructive algorithms
greedy
implementation
math
+
1200
10.2k
553B
Kyoya and Permutation
binary search
combinatorics
constructive algorithms
greedy
implementation
math
+
1900
2.3k
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