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
40 problems · filtered by 4 tags
Newest first
Oldest first
Rating ↑
Rating ↓
Most solved
Fewest solved
✓
#
Name
✎
Rating
↕
Solved
↕
2227D
Palindromex
binary search
brute force
constructive algorithms
data structures
greedy
implementation
two pointers
+
1200
13.9k
2200F
Mooclear Reactor 2
brute force
data structures
greedy
implementation
sortings
+
1900
3.2k
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
2156F1
Strange Operation (Easy Version)
brute force
data structures
greedy
implementation
sortings
+
2200
1.7k
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
2077D
Maximum Polygon
brute force
data structures
greedy
implementation
math
+
3100
393
2063D
Game With Triangles
binary search
brute force
data structures
geometry
greedy
implementation
math
ternary search
two pointers
+
2000
5.2k
2053F
Earnest Matrix Complement
brute force
data structures
dp
greedy
implementation
math
+
2600
963
2043E
Matrix Transformation
bitmasks
brute force
data structures
dfs and similar
graphs
greedy
implementation
+
2300
1.9k
2042E
Vertex Pairs
binary search
brute force
data structures
dfs and similar
divide and conquer
greedy
implementation
trees
+
2900
535
2026C
Action Figures
binary search
brute force
constructive algorithms
data structures
greedy
implementation
+
1500
12.9k
2021E1
Digital Village (Easy Version)
brute force
data structures
dfs and similar
dp
dsu
fft
graphs
greedy
implementation
math
trees
+
2300
2k
2014G
Milky Days
brute force
data structures
greedy
implementation
+
2200
1.8k
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
2004D
Colored Portals
binary search
brute force
data structures
graphs
greedy
implementation
shortest paths
+
1600
13.5k
2001D
Longest Max Min Subsequence
brute force
constructive algorithms
data structures
greedy
implementation
+
1900
6.6k
1998E2
Eliminating Balls With Merging (Hard Version)
binary search
brute force
data structures
divide and conquer
greedy
implementation
+
2500
927
1978E
Computing Machine
brute force
data structures
dp
greedy
implementation
+
2000
4.7k
1834D
Survey in Class
brute force
data structures
greedy
implementation
sortings
+
1900
5.6k
1807G1
Subsequence Addition (Easy Version)
brute force
data structures
dp
greedy
implementation
sortings
+
1100
22.7k
1798B
Three Sevens
brute force
data structures
greedy
implementation
+
1000
19k
1781E
Rectangle Shrinking
binary search
brute force
data structures
greedy
implementation
two pointers
+
2300
1.5k
1748C
Zero-Sum Prefixes
brute force
data structures
dp
greedy
implementation
+
1600
13.3k
1710B
Rain
binary search
brute force
data structures
geometry
greedy
implementation
math
+
2100
2.8k
1665E
MinimizOR
bitmasks
brute force
data structures
divide and conquer
greedy
implementation
two pointers
+
2500
1.9k
1593E
Gardener and Tree
brute force
data structures
dfs and similar
greedy
implementation
trees
+
1600
15.1k
1580A
Portal
brute force
data structures
dp
greedy
implementation
+
1700
3.9k
1574D
The Strongest Build
binary search
brute force
data structures
dfs and similar
graphs
greedy
hashing
implementation
+
2000
4.9k
1523C
Compression and Expansion
brute force
data structures
greedy
implementation
trees
+
1600
9.2k
1495E
Qingshan and Daniel
brute force
data structures
greedy
implementation
+
3200
548
1491C
Pekora and Trampoline
brute force
data structures
dp
greedy
implementation
+
1700
8.4k
1487E
Cheap Dinner
brute force
data structures
graphs
greedy
implementation
sortings
two pointers
+
2000
5.2k
1474C
Array Destruction
brute force
constructive algorithms
data structures
greedy
implementation
sortings
+
1700
14.3k
1343F
Restore the Permutation by Sorted Segments
brute force
constructive algorithms
data structures
greedy
implementation
+
2400
1.4k
1340A
Nastya and Strange Generator
brute force
data structures
greedy
implementation
+
1500
13.7k
1236D
Alice and the Doll
brute force
data structures
greedy
implementation
+
2300
1.8k
1202C
You Are Given a WASD-string...
brute force
data structures
dp
greedy
implementation
math
strings
+
2100
2.8k
showing 1–40 of 40