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80 problems · filtered by 3 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
2215B
RReeppeettiittiioonn
binary search
brute force
implementation
math
number theory
+
2000
1.3k
2163D1
Diadrash (Easy Version)
binary search
brute force
divide and conquer
implementation
interactive
+
2100
2.8k
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
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
2108D
Needle in a Numstack
binary search
brute force
implementation
interactive
+
2200
2.5k
2104F
Numbers and Strings
binary search
brute force
dfs and similar
dp
implementation
math
+
2600
742
2075F
Beautiful Sequence Returns
binary search
brute force
data structures
implementation
+
3000
529
2063D
Game With Triangles
binary search
brute force
data structures
geometry
greedy
implementation
math
ternary search
two pointers
+
2000
5.2k
2049E
Broken Queries
binary search
bitmasks
brute force
constructive algorithms
implementation
interactive
+
2400
1.6k
2042E
Vertex Pairs
binary search
brute force
data structures
dfs and similar
divide and conquer
greedy
implementation
trees
+
2900
535
2035E
Monster
binary search
brute force
constructive algorithms
greedy
implementation
math
ternary search
+
2300
2k
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
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
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
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
1988E
Range Minimum Sum
binary search
brute force
data structures
divide and conquer
implementation
+
2300
1.9k
1983C
Have Your Cake and Eat It Too
binary search
brute force
greedy
implementation
+
1400
14.9k
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
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
1878G
wxhtzdy ORO Tree
binary search
bitmasks
brute force
data structures
dfs and similar
implementation
trees
+
2300
1.5k
1846E2
Rudolf and Snowflakes (hard version)
binary search
brute force
implementation
math
+
1800
8.7k
1805F1
Survival of the Weakest (easy version)
binary search
brute force
implementation
math
sortings
+
2600
1.4k
1781E
Rectangle Shrinking
binary search
brute force
data structures
greedy
implementation
two pointers
+
2300
1.5k
1774F2
Magician and Pigs (Hard Version)
binary search
brute force
data structures
implementation
+
2700
921
1763B
Incinerate
binary search
brute force
data structures
implementation
math
sortings
+
1200
16.6k
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
1687D
Cute number
binary search
brute force
data structures
dsu
implementation
math
+
2900
775
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
1637E
Best Pair
binary search
brute force
implementation
+
2100
3.8k
1610E
AmShZ and G.O.A.T.
binary search
brute force
greedy
implementation
math
+
2300
2.1k
1575J
Jeopardy of Dropped Balls
binary search
brute force
dsu
implementation
+
1500
4.3k
1574D
The Strongest Build
binary search
brute force
data structures
dfs and similar
graphs
greedy
hashing
implementation
+
2000
4.9k
1572A
Book
binary search
brute force
data structures
dp
graphs
implementation
sortings
+
1800
10.6k
1537E1
Erase and Extend (Easy Version)
binary search
brute force
dp
greedy
hashing
implementation
string suffix structures
strings
two pointers
+
1600
16.9k
1535F
String Distance
binary search
brute force
data structures
hashing
implementation
strings
+
3000
701
1461D
Divide and Summarize
binary search
brute force
data structures
divide and conquer
implementation
sortings
+
1600
10.4k
1413C
Perform Easily
binary search
brute force
dp
implementation
sortings
two pointers
+
1900
6.3k
1408D
Searchlights
binary search
brute force
data structures
dp
implementation
sortings
two pointers
+
2000
4.7k
1358D
The Best Vacation
binary search
brute force
greedy
implementation
two pointers
+
1900
8.8k
1328B
K-th Beautiful String
binary search
brute force
combinatorics
implementation
math
+
1300
32.4k
1293A
ConneR and the A.R.C. Markland-N
binary search
brute force
implementation
+
1100
16.2k
1279B
Verse For Santa
binary search
brute force
implementation
+
1300
14.5k
1208B
Uniqueness
binary search
brute force
implementation
two pointers
+
1500
11.8k
1011B
Planning The Expedition
binary search
brute force
implementation
+
1200
11.1k
919B
Perfect Number
binary search
brute force
dp
implementation
number theory
+
1100
32k
911B
Two Cakes
binary search
brute force
implementation
+
1200
12.9k
776C
Molly's Chemicals
binary search
brute force
data structures
implementation
math
+
1800
6.3k
750A
New Year and Hurry
binary search
brute force
implementation
math
+
800
94.8k
677E
Vanya and Balloons
binary search
brute force
dp
implementation
+
2300
813
670D1
Magic Powder - 1
binary search
brute force
implementation
+
1400
25.1k
538C
Tourist's Notes
binary search
brute force
greedy
implementation
math
+
1600
6.2k
518F
Pasha and Pipe
binary search
brute force
combinatorics
dp
implementation
+
2300
442
493C
Vasya and Basketball
binary search
brute force
data structures
implementation
sortings
two pointers
+
1600
7.6k
490E
Restoring Increasing Sequence
binary search
brute force
greedy
implementation
+
2000
1.7k
487A
Fight the Monster
binary search
brute force
implementation
+
1800
4k
386B
Fly, freebies, fly!
binary search
brute force
implementation
+
1400
2.5k
385C
Bear and Prime Numbers
binary search
brute force
data structures
dp
implementation
math
number theory
+
1700
10.8k
333D
Characteristics of Rectangles
binary search
bitmasks
brute force
implementation
sortings
+
2100
2.3k
279B
Books
binary search
brute force
implementation
two pointers
+
1400
76.7k
245F
Log Stream Analysis
binary search
brute force
implementation
strings
+
2000
1k
202A
LLPS
binary search
bitmasks
brute force
greedy
implementation
strings
+
800
20.1k
200D
Programming Language
binary search
brute force
expression parsing
implementation
+
1800
1.1k
192A
Funky Numbers
binary search
brute force
implementation
+
1300
11.7k
85D
Sum of Medians
binary search
brute force
data structures
implementation
+
2300
2.5k
showing 1–80 of 80