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134 problems · filtered by 3 tags
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2229G
Roadworks
binary search
data structures
dp
greedy
two pointers
+
2900
345
2227E
It All Went Sideways
binary search
data structures
dp
greedy
+
1400
9.7k
2227F
It Just Keeps Going Sideways
binary search
data structures
dp
greedy
math
+
1700
4.4k
2223B
Zhily and Barknights
binary search
data structures
dp
math
sortings
two pointers
+
1600
3.7k
2207F
Hanabi
binary search
data structures
dp
dsu
flows
graph matchings
graphs
greedy
+
2900
315
2196E2
Fuzzy Concatenation (Hard version)
binary search
bitmasks
data structures
dp
greedy
string suffix structures
+
3000
238
2195G
Idiot First Search and Queries
binary search
data structures
dp
graphs
trees
+
2300
1.2k
2185H
BattleCows 2
binary search
brute force
data structures
dp
greedy
+
2500
752
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
2171H
Shiori Miyagi and Maximum Array Score
binary search
data structures
dp
sortings
+
2400
1.1k
2164F2
Chain Prefix Rank (Hard Version)
binary search
combinatorics
data structures
dfs and similar
dp
graphs
math
trees
+
2900
648
2161D
Locked Out
binary search
data structures
dp
greedy
+
2100
2.9k
2157E
Adjusting Drones
binary search
brute force
data structures
dp
dsu
greedy
implementation
sortings
+
1900
4.6k
2156E
Best Time to Buy and Sell Stock
binary search
brute force
data structures
dp
games
graphs
greedy
+
2500
1k
2143D2
Inversion Graph Coloring (Hard Version)
binary search
combinatorics
data structures
dp
two pointers
+
2200
3k
2128E1
Submedians (Easy Version)
binary search
data structures
dp
greedy
math
+
1900
6.8k
2126G1
Big Wins! (easy version)
binary search
data structures
dp
dsu
two pointers
+
2200
2.5k
2121H
Ice Baby
binary search
brute force
data structures
dp
implementation
sortings
+
2300
2.3k
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
2108C
Neo's Escape
binary search
brute force
data structures
dp
dsu
graphs
greedy
implementation
+
1500
15.1k
2107F2
Cycling (Hard Version)
binary search
brute force
data structures
dp
greedy
+
2800
566
2089B2
Canteen (Hard Version)
binary search
data structures
dp
flows
greedy
two pointers
+
2300
1.3k
2064D
Eating
binary search
bitmasks
brute force
data structures
dp
greedy
trees
two pointers
+
1900
6k
2064F
We Be Summing
binary search
data structures
dp
two pointers
+
2600
725
2057F
Formation
binary search
data structures
dp
sortings
two pointers
+
3300
249
2056D
Unique Median
binary search
brute force
combinatorics
data structures
divide and conquer
dp
+
2200
3.7k
2043C
Sums on Segments
binary search
brute force
data structures
dp
greedy
math
+
1600
11.5k
2038D
Divide OR Conquer
binary search
bitmasks
data structures
dp
implementation
+
2400
888
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
2029C
New Rating
binary search
data structures
dp
greedy
+
1700
7.8k
2027D2
The Endspeaker (Hard Version)
binary search
data structures
dp
greedy
implementation
two pointers
+
2200
1.9k
2026D
Sums of Segments
binary search
data structures
dp
implementation
math
+
1900
6.1k
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
2009G2
Yunli's Subarray Queries (hard version)
binary search
data structures
dp
+
2200
1.8k
1982C
Boring Day
binary search
data structures
dp
greedy
two pointers
+
1200
22.3k
1969E
Unique Array
binary search
data structures
divide and conquer
dp
greedy
+
2400
1.9k
1968G1
Division + LCP (easy version)
binary search
data structures
dp
hashing
string suffix structures
strings
+
1900
5.4k
1968G2
Division + LCP (hard version)
binary search
brute force
data structures
dp
hashing
math
string suffix structures
strings
+
2200
2.6k
1942D
Learning to Paint
binary search
data structures
dfs and similar
dp
greedy
implementation
sortings
+
2100
3.4k
1941E
Rudolf and k Bridges
binary search
data structures
dp
two pointers
+
1600
12.2k
1935C
Messenger in MAC
binary search
brute force
constructive algorithms
data structures
dp
greedy
sortings
+
1800
9.9k
1927D
Find the Different Ones!
binary search
brute force
data structures
dp
dsu
greedy
two pointers
+
1300
35.3k
1926E
Vlad and an Odd Ordering
binary search
bitmasks
data structures
dp
implementation
math
number theory
+
1500
15.2k
1918D
Blocking Elements
binary search
data structures
dp
implementation
two pointers
+
1900
6.4k
1902D
Robot Queries
binary search
data structures
dp
implementation
+
1900
5.4k
1895E
Infinite Card Game
binary search
brute force
data structures
dfs and similar
dp
dsu
games
graphs
greedy
sortings
two pointers
+
2300
1.9k
1895G
Two Characters, Two Colors
binary search
data structures
dp
flows
greedy
+
3100
405
1872E
Data Structures Fan
binary search
bitmasks
data structures
dp
+
1500
22.5k
1870C
Colorful Table
binary search
data structures
dp
implementation
math
two pointers
+
1300
13.3k
1866G
Grouped Carriages
binary search
data structures
dp
flows
greedy
+
2100
2.3k
1866K
Keen Tree Calculation
binary search
data structures
dp
geometry
graphs
implementation
trees
+
2500
585
1859D
Andrey and Escape from Capygrad
binary search
data structures
dp
dsu
greedy
sortings
+
1800
8.1k
1856C
To Become Max
binary search
brute force
data structures
dp
+
1600
19.2k
1849E
Max to the Right of Min
binary search
data structures
divide and conquer
dp
dsu
two pointers
+
2300
2.3k
1845D
Rating System
binary search
brute force
data structures
dp
dsu
greedy
math
two pointers
+
1800
9.2k
1827B2
Range Sorting (Hard Version)
binary search
data structures
dp
greedy
+
2400
2.4k
1827C
Palindrome Partition
binary search
brute force
data structures
dp
hashing
strings
+
2600
1.8k
1811G2
Vlad and the Nice Paths (hard version)
binary search
combinatorics
data structures
dp
math
two pointers
+
2200
2.2k
1801C
Music Festival
binary search
data structures
dp
greedy
sortings
+
1900
4.2k
1801D
The way home
binary search
data structures
dp
graphs
greedy
shortest paths
sortings
+
2100
2.9k
1795E
Explosions?
binary search
data structures
dp
greedy
math
+
2200
2.4k
1793E
Velepin and Marketing
binary search
data structures
dp
greedy
sortings
two pointers
+
2600
1.4k
1787H
Codeforces Scoreboard
binary search
data structures
dp
geometry
+
3300
348
1766E
Decomposition
binary search
brute force
data structures
divide and conquer
dp
two pointers
+
2300
1.5k
1762F
Good Pairs
binary search
data structures
dp
+
2600
917
1750E
Bracket Cost
binary search
data structures
divide and conquer
dp
greedy
strings
+
2400
1.7k
1748E
Yet Another Array Counting Problem
binary search
data structures
divide and conquer
dp
flows
math
trees
+
2300
2.8k
1746G
Olympiad Training
binary search
data structures
dp
flows
geometry
implementation
sortings
+
3500
118
1736C2
Good Subarrays (Hard Version)
binary search
data structures
dp
two pointers
+
2400
1.5k
1731D
Valiant's New Map
binary search
brute force
data structures
dp
two pointers
+
1700
8.7k
1703F
Yet Another Problem About Pairs Satisfying an Inequality
binary search
data structures
dp
greedy
sortings
+
1300
31.8k
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
1598F
RBS
binary search
bitmasks
brute force
data structures
dp
+
2400
1.7k
1582E
Pchelyonok and Segments
binary search
data structures
dp
greedy
math
+
2000
4.3k
1572A
Book
binary search
brute force
data structures
dp
graphs
implementation
sortings
+
1800
10.6k
1552F
Telepanting
binary search
data structures
dp
sortings
+
2200
3.4k
1550F
Jumping Around
binary search
data structures
divide and conquer
dp
dsu
graphs
shortest paths
+
2700
958
1539E
Game with Cards
binary search
constructive algorithms
data structures
dp
greedy
implementation
+
2500
1.1k
1535E
Gold Transfer
binary search
data structures
dp
greedy
interactive
trees
+
2200
3.1k
1527E
Partition Game
binary search
data structures
divide and conquer
dp
+
2500
3.1k
1516D
Cut
binary search
data structures
dp
graphs
number theory
two pointers
+
2100
5.3k
1503C
Travelling Salesman Problem
binary search
data structures
dp
greedy
shortest paths
sortings
two pointers
+
2200
3.9k
1492C
Maximum width
binary search
data structures
dp
greedy
two pointers
+
1500
17.6k
1486D
Max Median
binary search
data structures
dp
+
2100
10.1k
1476F
Lanterns
binary search
data structures
dp
+
3000
1.2k
1472E
Correct Placement
binary search
data structures
dp
sortings
two pointers
+
1700
9.1k
1470E
Strange Permutation
binary search
combinatorics
data structures
dp
graphs
implementation
two pointers
+
3200
981
1446C
Xor Tree
binary search
bitmasks
data structures
divide and conquer
dp
trees
+
2100
4.2k
1437E
Make It Increasing
binary search
constructive algorithms
data structures
dp
implementation
+
2200
4k
1428F
Fruit Sequences
binary search
data structures
divide and conquer
dp
two pointers
+
2400
2.6k
1416E
Split
binary search
data structures
dp
greedy
+
3200
546
1408D
Searchlights
binary search
brute force
data structures
dp
implementation
sortings
two pointers
+
2000
4.7k
1398F
Controversial Rounds
binary search
data structures
dp
greedy
two pointers
+
2500
1.5k
1379C
Choosing flowers
binary search
brute force
data structures
dfs and similar
dp
greedy
sortings
two pointers
+
2000
6.2k
1367F2
Flying Sort (Hard Version)
binary search
data structures
dp
greedy
sortings
two pointers
+
2400
2k
1335E1
Three Blocks Palindrome (easy version)
binary search
brute force
data structures
dp
two pointers
+
1700
11.8k
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