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136 problems · filtered by 3 tags
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2239C
Revival
binary search
data structures
math
two pointers
+
2200
1.3k
2236G
Criterion in Burlandia
binary search
bitmasks
brute force
data structures
dfs and similar
divide and conquer
implementation
trees
two pointers
+
2600
385
2230E
Minimum Influence
binary search
data structures
greedy
implementation
math
sortings
two pointers
+
2100
1.5k
2229G
Roadworks
binary search
data structures
dp
greedy
two pointers
+
2900
345
2227D
Palindromex
binary search
brute force
constructive algorithms
data structures
greedy
implementation
two pointers
+
1200
13.9k
2226C
Mental Monumental (Easy Version)
binary search
data structures
greedy
math
two pointers
+
1500
8.1k
2223B
Zhily and Barknights
binary search
data structures
dp
math
sortings
two pointers
+
1600
3.7k
2204F
Sum of Fractions
binary search
brute force
combinatorics
data structures
greedy
math
number theory
two pointers
+
2200
1.3k
2182E
New Year's Gifts
binary search
data structures
greedy
sortings
two pointers
+
1800
5.9k
2148E
Split
binary search
data structures
two pointers
+
1200
14.8k
2143D2
Inversion Graph Coloring (Hard Version)
binary search
combinatorics
data structures
dp
two pointers
+
2200
3k
2131F
Unjust Binary Life
binary search
data structures
greedy
math
sortings
two pointers
+
1900
4.8k
2128E2
Submedians (Hard Version)
binary search
constructive algorithms
data structures
math
two pointers
+
2600
818
2126G1
Big Wins! (easy version)
binary search
data structures
dp
dsu
two pointers
+
2200
2.5k
2126G2
Big Wins! (hard version)
binary search
data structures
divide and conquer
dsu
trees
two pointers
+
2400
1.2k
2123E
MEX Count
binary search
data structures
greedy
sortings
two pointers
+
1400
15.3k
2121F
Yamakasi
binary search
brute force
data structures
greedy
two pointers
+
1800
8.3k
2101C
23 Kingdom
binary search
brute force
data structures
greedy
ternary search
two pointers
+
2200
3.8k
2093G
Shorten the Array
binary search
bitmasks
data structures
dfs and similar
greedy
strings
trees
two pointers
+
1900
4k
2089B1
Canteen (Easy Version)
binary search
data structures
flows
greedy
two pointers
+
1900
3.3k
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
2063D
Game With Triangles
binary search
brute force
data structures
geometry
greedy
implementation
math
ternary search
two pointers
+
2000
5.2k
2057F
Formation
binary search
data structures
dp
sortings
two pointers
+
3300
249
2048D
Kevin and Competition Memories
binary search
brute force
data structures
greedy
sortings
two pointers
+
1600
8.5k
2046C
Adventurers
binary search
data structures
greedy
sortings
ternary search
two pointers
+
2100
2.4k
2041M
Selection Sort
binary search
data structures
greedy
two pointers
+
2000
1.4k
2037F
Ardent Flames
binary search
data structures
math
sortings
two pointers
+
2100
3k
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
2027D2
The Endspeaker (Hard Version)
binary search
data structures
dp
greedy
implementation
two pointers
+
2200
1.9k
2018B
Speedbreaker
binary search
data structures
dp
greedy
implementation
two pointers
+
1900
5.3k
2009G1
Yunli's Subarray Queries (easy version)
binary search
data structures
two pointers
+
1900
5.6k
1995B2
Bouquet (Hard Version)
binary search
data structures
greedy
math
sortings
two pointers
+
1700
10.3k
1983F
array-value
binary search
bitmasks
data structures
greedy
two pointers
+
2500
1.6k
1982C
Boring Day
binary search
data structures
dp
greedy
two pointers
+
1200
22.3k
1979E
Manhattan Triangle
binary search
constructive algorithms
data structures
geometry
implementation
two pointers
+
2400
1.9k
1976D
Invertible Bracket Sequences
binary search
combinatorics
data structures
divide and conquer
implementation
two pointers
+
2000
5.9k
1974F
Cutting Game
binary search
brute force
data structures
implementation
sortings
two pointers
+
1900
4.5k
1973B
Cat, Fox and the Lonely Array
binary search
bitmasks
data structures
greedy
math
two pointers
+
1300
17.1k
1941E
Rudolf and k Bridges
binary search
data structures
dp
two pointers
+
1600
12.2k
1936B
Pinball
binary search
data structures
implementation
math
two pointers
+
2000
3.6k
1936D
Bitwise Paradox
binary search
bitmasks
data structures
greedy
two pointers
+
3100
705
1927D
Find the Different Ones!
binary search
brute force
data structures
dp
dsu
greedy
two pointers
+
1300
35.3k
1923D
Slimes
binary search
constructive algorithms
data structures
greedy
two pointers
+
1800
8.5k
1918D
Blocking Elements
binary search
data structures
dp
implementation
two pointers
+
1900
6.4k
1904C
Array Game
binary search
brute force
data structures
sortings
two pointers
+
1400
25.2k
1896D
Ones and Twos
binary search
data structures
divide and conquer
math
two pointers
+
1700
7.1k
1895E
Infinite Card Game
binary search
brute force
data structures
dfs and similar
dp
dsu
games
graphs
greedy
sortings
two pointers
+
2300
1.9k
1887C
Minimum Array
binary search
brute force
constructive algorithms
data structures
greedy
hashing
two pointers
+
2400
2.3k
1887D
Split
binary search
data structures
divide and conquer
dsu
math
trees
two pointers
+
2700
1.3k
1870C
Colorful Table
binary search
data structures
dp
implementation
math
two pointers
+
1300
13.3k
1851G
Vlad and the Mountains
binary search
data structures
dsu
graphs
implementation
sortings
trees
two pointers
+
2000
4.2k
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
1843E
Tracking Segments
binary search
brute force
data structures
two pointers
+
1600
18.8k
1814D
Balancing Weapons
binary search
brute force
data structures
math
two pointers
+
2500
1.1k
1811G2
Vlad and the Nice Paths (hard version)
binary search
combinatorics
data structures
dp
math
two pointers
+
2200
2.2k
1808D
Petya, Petya, Petr, and Palindromes
binary search
brute force
data structures
two pointers
+
2100
2.8k
1793E
Velepin and Marketing
binary search
data structures
dp
greedy
sortings
two pointers
+
2600
1.4k
1781E
Rectangle Shrinking
binary search
brute force
data structures
greedy
implementation
two pointers
+
2300
1.5k
1766E
Decomposition
binary search
brute force
data structures
divide and conquer
dp
two pointers
+
2300
1.5k
1736C1
Good Subarrays (Easy Version)
binary search
data structures
schedules
two pointers
+
1300
16.6k
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
1719C
Fighting Tournament
binary search
data structures
implementation
two pointers
+
1400
14.5k
1701D
Permutation Restoration
binary search
data structures
greedy
math
sortings
two pointers
+
1900
6.3k
1697C
awoo's Favorite Problem
binary search
constructive algorithms
data structures
greedy
implementation
strings
two pointers
+
1400
15.9k
1691D
Max GEQ Sum
binary search
constructive algorithms
data structures
divide and conquer
implementation
two pointers
+
1800
7.7k
1684E
MEX vs DIFF
binary search
brute force
constructive algorithms
data structures
greedy
two pointers
+
2100
3.7k
1669F
Eating Candies
binary search
data structures
greedy
two pointers
+
1100
42.1k
1632D
New Year Concert
binary search
data structures
greedy
math
number theory
two pointers
+
2000
5.4k
1630B
Range and Partition
binary search
constructive algorithms
data structures
greedy
two pointers
+
1800
6.5k
1626C
Monsters And Spells
binary search
data structures
dp
greedy
implementation
math
two pointers
+
1700
12k
1611F
ATM and Students
binary search
data structures
two pointers
+
1800
7.5k
1588F
Jumping Through the Array
binary search
data structures
graphs
two pointers
+
3500
359
1569D
Inconvenient Pairs
binary search
data structures
implementation
sortings
two pointers
+
1900
4.6k
1548B
Integers Have Friends
binary search
data structures
divide and conquer
math
number theory
two pointers
+
1800
11.6k
1547F
Array Stabilization (GCD version)
binary search
brute force
data structures
divide and conquer
number theory
two pointers
+
1900
7.2k
1538C
Number of Pairs
binary search
data structures
math
two pointers
+
1300
35.6k
1537E2
Erase and Extend (Hard Version)
binary search
data structures
greedy
hashing
string suffix structures
strings
two pointers
+
2200
6.4k
1517E
Group Photo
binary search
data structures
implementation
two pointers
+
2500
1.1k
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
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
1454F
Array Partition
binary search
data structures
greedy
two pointers
+
2100
4.8k
1450D
Rating Compression
binary search
data structures
greedy
implementation
two pointers
+
1800
5.9k
1436E
Complicated Computations
binary search
data structures
two pointers
+
2400
2.9k
1430D
String Deletion
binary search
data structures
greedy
two pointers
+
1700
9.4k
1428F
Fruit Sequences
binary search
data structures
divide and conquer
dp
two pointers
+
2400
2.6k
1416A
k-Amazing Numbers
binary search
data structures
implementation
two pointers
+
1500
17.4k
1408D
Searchlights
binary search
brute force
data structures
dp
implementation
sortings
two pointers
+
2000
4.7k
1404C
Fixed Point Removal
binary search
constructive algorithms
data structures
greedy
two pointers
+
2300
3.1k
1403A
The Potion of Great Power
*special
2-sat
binary search
data structures
graphs
interactive
sortings
two pointers
+
2400
359
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
1379D
New Passenger Trams
binary search
brute force
data structures
sortings
two pointers
+
2300
1.2k
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