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110 problems · filtered by 3 tags
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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
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
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
2164C
Dungeon
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brute force
data structures
greedy
sortings
+
1400
12.3k
2159D1
Inverse Minimum Partition (Easy Version)
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brute force
dp
geometry
greedy
math
two pointers
+
2500
1.7k
2157E
Adjusting Drones
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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
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brute force
data structures
dp
games
graphs
greedy
+
2500
1k
2147E
Maximum OR Popcount
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bitmasks
brute force
data structures
greedy
+
2300
2.2k
2121F
Yamakasi
binary search
brute force
data structures
greedy
two pointers
+
1800
8.3k
2112C
Coloring Game
binary search
brute force
greedy
two pointers
+
1300
18.2k
2108C
Neo's Escape
binary search
brute force
data structures
dp
dsu
graphs
greedy
implementation
+
1500
15.1k
2107F1
Cycling (Easy Version)
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brute force
dp
greedy
+
2300
1.9k
2107F2
Cycling (Hard Version)
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brute force
data structures
dp
greedy
+
2800
566
2101C
23 Kingdom
binary search
brute force
data structures
greedy
ternary search
two pointers
+
2200
3.8k
2093E
Min Max MEX
binary search
brute force
greedy
+
1500
13.9k
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
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
2064D
Eating
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bitmasks
brute force
data structures
dp
greedy
trees
two pointers
+
1900
6k
2063D
Game With Triangles
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brute force
data structures
geometry
greedy
implementation
math
ternary search
two pointers
+
2000
5.2k
2053B
Outstanding Impressionist
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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
2048D
Kevin and Competition Memories
binary search
brute force
data structures
greedy
sortings
two pointers
+
1600
8.5k
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
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
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
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brute force
greedy
implementation
sortings
two pointers
+
1300
19.4k
2013F1
Game in Tree (Easy Version)
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brute force
data structures
dp
games
greedy
implementation
trees
+
2700
679
2008H
Sakurako's Test
binary search
brute force
greedy
math
number theory
+
2100
3.7k
2004D
Colored Portals
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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
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
1995B1
Bouquet (Easy Version)
binary search
brute force
greedy
sortings
two pointers
+
1100
21.3k
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
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
1913C
Game with Multiset
binary search
bitmasks
brute force
greedy
+
1300
17.8k
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
1887C
Minimum Array
binary search
brute force
constructive algorithms
data structures
greedy
hashing
two pointers
+
2400
2.3k
1876G
Clubstep
binary search
brute force
data structures
greedy
trees
+
3500
295
1860B
Fancy Coins
binary search
brute force
greedy
math
+
1200
19.2k
1845D
Rating System
binary search
brute force
data structures
dp
dsu
greedy
math
two pointers
+
1800
9.2k
1835B
Lottery
binary search
brute force
greedy
math
two pointers
+
2500
1.1k
1821D
Black Cells
binary search
brute force
greedy
math
+
1900
5.6k
1799F
Halve or Subtract
binary search
brute force
dp
greedy
sortings
+
2700
1.1k
1792C
Min Max Sort
binary search
brute force
greedy
math
two pointers
+
1500
17.1k
1781E
Rectangle Shrinking
binary search
brute force
data structures
greedy
implementation
two pointers
+
2300
1.5k
1761E
Make It Connected
binary search
brute force
constructive algorithms
dsu
graphs
greedy
matrices
trees
two pointers
+
2400
2.2k
1753E
N Machines
binary search
brute force
greedy
+
3300
440
1732C2
Sheikh (Hard Version)
binary search
bitmasks
brute force
greedy
implementation
two pointers
+
2100
3.2k
1710B
Rain
binary search
brute force
data structures
geometry
greedy
implementation
math
+
2100
2.8k
1706D1
Chopping Carrots (Easy Version)
binary search
brute force
constructive algorithms
greedy
number theory
+
1700
7.8k
1705E
Mark and Professor Koro
binary search
bitmasks
brute force
combinatorics
data structures
greedy
+
2300
2.5k
1687C
Sanae and Giant Robot
binary search
brute force
data structures
dsu
greedy
sortings
+
2500
1.7k
1684E
MEX vs DIFF
binary search
brute force
constructive algorithms
data structures
greedy
two pointers
+
2100
3.7k
1674E
Breaking the Wall
binary search
brute force
constructive algorithms
greedy
math
+
2000
7.8k
1671C
Dolce Vita
binary search
brute force
greedy
math
+
1200
27k
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
1657D
For Gamers. By Gamers.
binary search
brute force
greedy
math
sortings
+
2000
5.4k
1641C
Anonymity Is Important
binary search
brute force
data structures
dsu
greedy
sortings
+
2200
2.9k
1626D
Martial Arts Tournament
binary search
brute force
greedy
math
+
2100
4.4k
1622C
Set or Decrease
binary search
brute force
greedy
sortings
+
1600
15.8k
1610E
AmShZ and G.O.A.T.
binary search
brute force
greedy
implementation
math
+
2300
2.1k
1582F2
Korney Korneevich and XOR (hard version)
binary search
brute force
dp
greedy
two pointers
+
2400
2.2k
1574D
The Strongest Build
binary search
brute force
data structures
dfs and similar
graphs
greedy
hashing
implementation
+
2000
4.9k
1560F1
Nearest Beautiful Number (easy version)
binary search
bitmasks
brute force
constructive algorithms
dfs and similar
greedy
+
1900
6.8k
1537E1
Erase and Extend (Easy Version)
binary search
brute force
dp
greedy
hashing
implementation
string suffix structures
strings
two pointers
+
1600
16.9k
1530C
Pursuit
binary search
brute force
greedy
sortings
+
1200
15.7k
1493C
K-beautiful Strings
binary search
brute force
constructive algorithms
greedy
strings
+
2000
5k
1476B
Inflation
binary search
brute force
greedy
math
+
1300
21.8k
1419D2
Sage's Birthday (hard version)
binary search
brute force
constructive algorithms
greedy
sortings
two pointers
+
1500
17.6k
1379C
Choosing flowers
binary search
brute force
data structures
dfs and similar
dp
greedy
sortings
two pointers
+
2000
6.2k
1358D
The Best Vacation
binary search
brute force
greedy
implementation
two pointers
+
1900
8.8k
1250I
Show Must Go On
binary search
brute force
greedy
shortest paths
+
3100
231
1175C
Electrification
binary search
brute force
greedy
+
1600
7.3k
1166D
Cute Sequences
binary search
brute force
greedy
math
+
2200
2.3k
1073D
Berland Fair
binary search
brute force
data structures
greedy
+
1700
6.8k
979D
Kuro and GCD and XOR and SUM
binary search
bitmasks
brute force
data structures
dp
dsu
greedy
math
number theory
strings
trees
+
2200
2.3k
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