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266 problems · filtered by 2 tags
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2236G
Criterion in Burlandia
binary search
bitmasks
brute force
data structures
dfs and similar
divide and conquer
implementation
trees
two pointers
+
2600
385
2228C1
Cirno and Number (Easy Version)
binary search
brute force
dp
greedy
implementation
+
1500
8k
2227D
Palindromex
binary search
brute force
constructive algorithms
data structures
greedy
implementation
two pointers
+
1200
13.9k
2225F
String Cutting
binary search
brute force
greedy
hashing
string suffix structures
strings
+
2600
762
2222G
Statistics on Tree
binary search
brute force
dfs and similar
divide and conquer
graphs
trees
+
3100
215
2218E
The 67th XOR Problem
binary search
bitmasks
brute force
+
1200
17.1k
2215B
RReeppeettiittiioonn
binary search
brute force
implementation
math
number theory
+
2000
1.3k
2211C1
Equal Multisets (Easy Version)
binary search
brute force
greedy
two pointers
+
1300
10.4k
2204F
Sum of Fractions
binary search
brute force
combinatorics
data structures
greedy
math
number theory
two pointers
+
2200
1.3k
2197A
Friendly Numbers
binary search
brute force
expression parsing
math
schedules
+
800
23.9k
2196E1
Fuzzy Concatenation (Easy Version)
binary search
bitmasks
brute force
data structures
greedy
string suffix structures
+
2900
311
2185H
BattleCows 2
binary search
brute force
data structures
dp
greedy
+
2500
752
2173F
Isla's Memory Thresholds
binary search
brute force
data structures
divide and conquer
math
+
2600
623
2164C
Dungeon
binary search
brute force
data structures
greedy
sortings
+
1400
12.3k
2163D1
Diadrash (Easy Version)
binary search
brute force
divide and conquer
implementation
interactive
+
2100
2.8k
2159D1
Inverse Minimum Partition (Easy Version)
binary search
brute force
dp
geometry
greedy
math
two pointers
+
2500
1.7k
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
2156E
Best Time to Buy and Sell Stock
binary search
brute force
data structures
dp
games
graphs
greedy
+
2500
1k
2149G
Buratsuta 3
binary search
brute force
data structures
divide and conquer
probabilities
+
2100
2.8k
2147E
Maximum OR Popcount
binary search
bitmasks
brute force
data structures
greedy
+
2300
2.2k
2121F
Yamakasi
binary search
brute force
data structures
greedy
two pointers
+
1800
8.3k
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
2114A
Square Year
binary search
brute force
math
+
800
44.1k
2114F
Small Operations
binary search
brute force
dfs and similar
dp
math
number theory
sortings
+
2000
5.6k
2112C
Coloring Game
binary search
brute force
greedy
two pointers
+
1300
18.2k
2111G
Divisible Subarrays
binary search
bitmasks
brute force
data structures
interactive
+
2900
422
2108C
Neo's Escape
binary search
brute force
data structures
dp
dsu
graphs
greedy
implementation
+
1500
15.1k
2108D
Needle in a Numstack
binary search
brute force
implementation
interactive
+
2200
2.5k
2107F1
Cycling (Easy Version)
binary search
brute force
dp
greedy
+
2300
1.9k
2107F2
Cycling (Hard Version)
binary search
brute force
data structures
dp
greedy
+
2800
566
2104F
Numbers and Strings
binary search
brute force
dfs and similar
dp
implementation
math
+
2600
742
2101C
23 Kingdom
binary search
brute force
data structures
greedy
ternary search
two pointers
+
2200
3.8k
2095C
Would It Be Unrated?
*special
binary search
brute force
+
unrated
3.8k
2094H
La Vaca Saturno Saturnita
binary search
brute force
math
number theory
+
1900
3.9k
2093E
Min Max MEX
binary search
brute force
greedy
+
1500
13.9k
2091F
Igor and Mountain
binary search
brute force
dp
+
1800
6.3k
2086B
Large Array and Segments
binary search
brute force
greedy
+
1100
19.4k
2084D
Arcology On Permafrost
binary search
brute force
constructive algorithms
greedy
math
+
1600
9.1k
2075F
Beautiful Sequence Returns
binary search
brute force
data structures
implementation
+
3000
529
2072E
Do You Love Your Hero and His Two-Hit Multi-Target Attacks?
binary search
brute force
constructive algorithms
dp
geometry
greedy
math
+
1500
12.6k
2072G
I've Been Flipping Numbers for 300 Years and Calculated the Sum
binary search
brute force
combinatorics
divide and conquer
math
number theory
+
2200
2.2k
2064D
Eating
binary search
bitmasks
brute force
data structures
dp
greedy
trees
two pointers
+
1900
6k
2063D
Game With Triangles
binary search
brute force
data structures
geometry
greedy
implementation
math
ternary search
two pointers
+
2000
5.2k
2057E1
Another Exercise on Graphs (Easy Version)
binary search
brute force
dp
dsu
graphs
shortest paths
sortings
+
2300
2.7k
2056D
Unique Median
binary search
brute force
combinatorics
data structures
divide and conquer
dp
+
2200
3.7k
2053B
Outstanding Impressionist
binary search
brute force
data structures
greedy
+
1200
17.2k
2053G
Naive String Splits
binary search
brute force
greedy
hashing
math
number theory
strings
+
3400
228
2051E
Best Price
binary search
brute force
data structures
greedy
sortings
+
1600
12.3k
2049E
Broken Queries
binary search
bitmasks
brute force
constructive algorithms
implementation
interactive
+
2400
1.6k
2048D
Kevin and Competition Memories
binary search
brute force
data structures
greedy
sortings
two pointers
+
1600
8.5k
2044F
Easy Demon Problem
binary search
brute force
data structures
math
number theory
+
1900
6.4k
2043C
Sums on Segments
binary search
brute force
data structures
dp
greedy
math
+
1600
11.5k
2042E
Vertex Pairs
binary search
brute force
data structures
dfs and similar
divide and conquer
greedy
implementation
trees
+
2900
535
2041B
Bowling Frame
binary search
brute force
math
+
1200
7.4k
2041K
Trophic Balance Species
binary search
brute force
dfs and similar
graphs
+
3100
122
2038B
Make It Equal
binary search
brute force
greedy
math
+
2100
2k
2035E
Monster
binary search
brute force
constructive algorithms
greedy
implementation
math
ternary search
+
2300
2k
2035F
Tree Operations
binary search
brute force
dfs and similar
dp
trees
+
2500
1.1k
2026B
Black Cells
binary search
brute force
constructive algorithms
greedy
+
1300
16.8k
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
2022D1
Asesino (Easy Version)
binary search
brute force
constructive algorithms
implementation
interactive
+
1900
4.1k
2013F1
Game in Tree (Easy Version)
binary search
brute force
data structures
dp
games
greedy
implementation
trees
+
2700
679
2008C
Longest Good Array
binary search
brute force
math
+
800
37k
2008H
Sakurako's Test
binary search
brute force
greedy
math
number theory
+
2100
3.7k
2005D
Alter the GCD
binary search
brute force
data structures
divide and conquer
implementation
number theory
+
2400
1.3k
2004D
Colored Portals
binary search
brute force
data structures
graphs
greedy
implementation
shortest paths
+
1600
13.5k
2004F
Make a Palindrome
binary search
brute force
data structures
greedy
math
+
2600
1.4k
2001C
Guess The Tree
binary search
brute force
dfs and similar
divide and conquer
dsu
greedy
interactive
trees
+
1500
13.1k
2000G
Call During the Journey
binary search
brute force
graphs
greedy
shortest paths
+
2100
3.2k
2000H
Ksyusha and the Loaded Set
binary search
brute force
data structures
implementation
+
2200
2.4k
1998C
Perform Operations to Maximize Score
binary search
brute force
constructive algorithms
greedy
implementation
+
1900
7.2k
1998E1
Eliminating Balls With Merging (Easy Version)
binary search
brute force
data structures
divide and conquer
greedy
+
2200
2.3k
1998E2
Eliminating Balls With Merging (Hard Version)
binary search
brute force
data structures
divide and conquer
greedy
implementation
+
2500
927
1997E
Level Up
binary search
brute force
data structures
divide and conquer
implementation
+
2200
3.9k
1996D
Fun
binary search
brute force
combinatorics
math
number theory
+
1500
20k
1995B1
Bouquet (Easy Version)
binary search
brute force
greedy
sortings
two pointers
+
1100
21.3k
1988E
Range Minimum Sum
binary search
brute force
data structures
divide and conquer
implementation
+
2300
1.9k
1986G1
Permutation Problem (Simple Version)
binary search
brute force
combinatorics
data structures
math
number theory
+
2200
2k
1983C
Have Your Cake and Eat It Too
binary search
brute force
greedy
implementation
+
1400
14.9k
1975C
Chamo and Mocha's Array
binary search
brute force
greedy
+
1200
17.4k
1974F
Cutting Game
binary search
brute force
data structures
implementation
sortings
two pointers
+
1900
4.5k
1971F
Circle Perimeter
binary search
brute force
dfs and similar
geometry
implementation
math
+
1600
12.7k
1968G2
Division + LCP (hard version)
binary search
brute force
data structures
dp
hashing
math
string suffix structures
strings
+
2200
2.6k
1956A
Nene's Game
binary search
brute force
data structures
games
greedy
+
800
24.5k
1949B
Charming Meals
binary search
brute force
greedy
sortings
+
1500
5k
1943E1
MEX Game 2 (Easy Version)
binary search
brute force
greedy
+
2900
551
1935C
Messenger in MAC
binary search
brute force
constructive algorithms
data structures
dp
greedy
sortings
+
1800
9.9k
1929C
Sasha and the Casino
binary search
brute force
constructive algorithms
games
greedy
math
+
1400
17.5k
1927D
Find the Different Ones!
binary search
brute force
data structures
dp
dsu
greedy
two pointers
+
1300
35.3k
1923F
Shrink-Reverse
binary search
brute force
greedy
hashing
implementation
string suffix structures
strings
+
2800
544
1920D
Array Repetition
binary search
brute force
dsu
implementation
math
+
1900
6.7k
1920F1
Smooth Sailing (Easy Version)
binary search
brute force
data structures
dfs and similar
dsu
graphs
shortest paths
+
2500
1.3k
1913C
Game with Multiset
binary search
bitmasks
brute force
greedy
+
1300
17.8k
1904C
Array Game
binary search
brute force
data structures
sortings
two pointers
+
1400
25.2k
1903D1
Maximum And Queries (easy version)
binary search
bitmasks
brute force
greedy
+
1700
7.4k
1902B
Getting Points
binary search
brute force
greedy
+
1100
16.6k
1895E
Infinite Card Game
binary search
brute force
data structures
dfs and similar
dp
dsu
games
graphs
greedy
sortings
two pointers
+
2300
1.9k
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