cf
/
mirror
Problemset
Contests
Favorites
Profile
Tools
Settings
Problemset
Contests
Favorites
Profile
Complexity
Stress
Graph
Templates
Crawler
11,311
/11,320 captured
·
📄
81
PDFs
⊘
0
skipped
9 remaining
100%
Problemset
33 problems · filtered by 4 tags
Newest first
Oldest first
Rating ↑
Rating ↓
Most solved
Fewest solved
✓
#
Name
✎
Rating
↕
Solved
↕
2159B
Rectangles
brute force
data structures
dp
dsu
greedy
implementation
two pointers
+
2100
3.4k
2157E
Adjusting Drones
binary search
brute force
data structures
dp
dsu
greedy
implementation
sortings
+
1900
4.6k
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
2104B
Move to the End
brute force
data structures
dp
greedy
implementation
+
1000
21.3k
2071D2
Infinite Sequence (Hard Version)
bitmasks
brute force
constructive algorithms
data structures
dp
implementation
math
+
2500
1.1k
2053F
Earnest Matrix Complement
brute force
data structures
dp
greedy
implementation
math
+
2600
963
2048F
Kevin and Math Class
brute force
data structures
divide and conquer
dp
implementation
math
trees
+
2500
1.3k
2025D
Attribute Checks
brute force
data structures
dp
implementation
math
two pointers
+
1800
8k
2021E1
Digital Village (Easy Version)
brute force
data structures
dfs and similar
dp
dsu
fft
graphs
greedy
implementation
math
trees
+
2300
2k
2013F1
Game in Tree (Easy Version)
binary search
brute force
data structures
dp
games
greedy
implementation
trees
+
2700
679
2008E
Alternating String
brute force
data structures
dp
greedy
implementation
strings
+
1500
13.8k
1978E
Computing Machine
brute force
data structures
dp
greedy
implementation
+
2000
4.7k
1921F
Sum of Progression
brute force
data structures
dp
implementation
math
+
1900
5.2k
1921G
Mischievous Shooter
brute force
data structures
divide and conquer
dp
implementation
+
2200
1.5k
1826E
Walk the Runway
bitmasks
brute force
data structures
dp
graphs
implementation
sortings
+
2400
2k
1807G1
Subsequence Addition (Easy Version)
brute force
data structures
dp
greedy
implementation
sortings
+
1100
22.7k
1797D
Li Hua and Tree
brute force
data structures
dfs and similar
dp
implementation
trees
+
1900
4.7k
1748C
Zero-Sum Prefixes
brute force
data structures
dp
greedy
implementation
+
1600
13.3k
1722E
Counting Rectangles
brute force
data structures
dp
implementation
+
1600
13.7k
1598E
Staircases
brute force
combinatorics
data structures
dfs and similar
dp
implementation
math
+
2100
2.5k
1580A
Portal
brute force
data structures
dp
greedy
implementation
+
1700
3.9k
1572A
Book
binary search
brute force
data structures
dp
graphs
implementation
sortings
+
1800
10.6k
1491C
Pekora and Trampoline
brute force
data structures
dp
greedy
implementation
+
1700
8.4k
1408D
Searchlights
binary search
brute force
data structures
dp
implementation
sortings
two pointers
+
2000
4.7k
1202C
You Are Given a WASD-string...
brute force
data structures
dp
greedy
implementation
math
strings
+
2100
2.8k
1200D
White Lines
brute force
data structures
dp
implementation
two pointers
+
1900
4.4k
1200F
Graph Traveler
brute force
data structures
dfs and similar
dp
graphs
implementation
math
number theory
+
2300
1.2k
761F
Dasha and Photos
brute force
data structures
dp
implementation
+
2600
752
750D
New Year and Fireworks
brute force
data structures
dfs and similar
dp
implementation
+
1900
3.2k
385C
Bear and Prime Numbers
binary search
brute force
data structures
dp
implementation
math
number theory
+
1700
10.8k
280E
Sequence Transformation
brute force
data structures
dp
implementation
math
+
3000
327
showing 1–33 of 33