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
62 problems · filtered by 3 tags
Newest first
Oldest first
Rating ↑
Rating ↓
Most solved
Fewest solved
✓
#
Name
✎
Rating
↕
Solved
↕
2194E
The Turtle Strikes Back
dp
graphs
greedy
implementation
+
2000
2.8k
2193H
Remove the Grail Tree
dfs and similar
dp
graphs
greedy
implementation
trees
+
2400
1.1k
2127H
23 Rises Again
brute force
dfs and similar
dp
flows
graph matchings
graphs
greedy
implementation
probabilities
trees
+
3100
1.9k
2108C
Neo's Escape
binary search
brute force
data structures
dp
dsu
graphs
greedy
implementation
+
1500
15.1k
2108E
Spruce Dispute
constructive algorithms
dfs and similar
graphs
greedy
implementation
shortest paths
trees
+
2600
922
2086C
Disappearing Permutation
dfs and similar
dp
dsu
graphs
greedy
implementation
+
1300
16.6k
2078B
Vicious Labyrinth
constructive algorithms
graphs
greedy
implementation
math
+
1100
18.6k
2066A
Object Identification
graphs
greedy
implementation
interactive
+
1400
7.4k
2043E
Matrix Transformation
bitmasks
brute force
data structures
dfs and similar
graphs
greedy
implementation
+
2300
1.9k
2032D
Genokraken
constructive algorithms
data structures
graphs
greedy
implementation
interactive
trees
two pointers
+
1800
6.3k
2028D
Alice's Adventures in Cards
constructive algorithms
data structures
dp
graphs
greedy
implementation
ternary search
+
2000
3.8k
2027D1
The Endspeaker (Easy Version)
binary search
dp
graphs
greedy
implementation
two pointers
+
1700
7.1k
2023C
C+K+S
constructive algorithms
dfs and similar
graphs
greedy
hashing
implementation
strings
+
2400
1.4k
2021E1
Digital Village (Easy Version)
brute force
data structures
dfs and similar
dp
dsu
fft
graphs
greedy
implementation
math
trees
+
2300
2k
2004D
Colored Portals
binary search
brute force
data structures
graphs
greedy
implementation
shortest paths
+
1600
13.5k
2003D2
Turtle and a MEX Problem (Hard Version)
dfs and similar
dp
graphs
greedy
implementation
math
+
2100
4.7k
1948E
Clique Partition
brute force
constructive algorithms
graphs
greedy
implementation
+
2100
3.6k
1936C
Pokémon Arena
data structures
graphs
greedy
implementation
shortest paths
sortings
+
2400
1.8k
1927F
Microcycle
data structures
dfs and similar
dsu
graphs
greedy
implementation
sortings
trees
+
1900
5.6k
1926G
Vlad and Trouble at MIT
dfs and similar
dp
flows
graphs
greedy
implementation
trees
+
1900
4.7k
1918F
Caterpillar on a Tree
dfs and similar
graphs
greedy
implementation
sortings
trees
+
2500
1.2k
1915G
Bicycles
graphs
greedy
implementation
shortest paths
sortings
+
1800
10.3k
1907G
Lights
brute force
constructive algorithms
dfs and similar
graphs
greedy
implementation
+
2200
2.4k
1868B1
Candy Party (Easy Version)
bitmasks
constructive algorithms
graphs
greedy
implementation
math
+
1700
8.4k
1868D
Flower-like Pseudotree
constructive algorithms
graphs
greedy
implementation
trees
+
3000
418
1867D
Cyclic Operations
brute force
constructive algorithms
dfs and similar
graphs
greedy
implementation
+
1800
6.9k
1850H
The Third Letter
dfs and similar
dsu
graphs
greedy
implementation
+
1700
10.2k
1809F
Traveling in Berland
binary search
data structures
graphs
greedy
implementation
+
2500
972
1797A
Li Hua and Maze
constructive algorithms
flows
graphs
greedy
implementation
+
800
19.7k
1788F
XOR, Tree, and Queries
bitmasks
constructive algorithms
dfs and similar
dsu
graphs
greedy
implementation
trees
+
2500
1.2k
1765H
Hospital Queue
binary search
graphs
greedy
implementation
+
2200
1.6k
1737D
Ela and the Wiring Wizard
brute force
dp
graphs
greedy
implementation
shortest paths
+
2200
2.1k
1735C
Phase Shift
dfs and similar
dsu
graphs
greedy
implementation
strings
+
1400
11k
1697E
Coloring
brute force
combinatorics
constructive algorithms
dp
geometry
graphs
greedy
implementation
math
+
2400
1.5k
1627F
Not Splitting
geometry
graphs
greedy
implementation
shortest paths
+
2700
691
1609D
Social Network
dsu
graphs
greedy
implementation
trees
+
1600
8.6k
1574D
The Strongest Build
binary search
brute force
data structures
dfs and similar
graphs
greedy
hashing
implementation
+
2000
4.9k
1566G
Four Vertices
constructive algorithms
data structures
graphs
greedy
implementation
shortest paths
+
3100
433
1549B
Gregor and the Pawn Game
dfs and similar
dp
flows
graph matchings
graphs
greedy
implementation
+
800
27.2k
1520G
To Go Or Not To Go?
brute force
dfs and similar
graphs
greedy
implementation
shortest paths
+
2200
4.4k
1487C
Minimum Ties
brute force
constructive algorithms
dfs and similar
graphs
greedy
implementation
math
+
1500
15.6k
1487E
Cheap Dinner
brute force
data structures
graphs
greedy
implementation
sortings
two pointers
+
2000
5.2k
1481D
AB Graph
brute force
constructive algorithms
graphs
greedy
implementation
+
2000
4.9k
1461E
Water Level
brute force
graphs
greedy
implementation
math
+
2200
2.2k
1439A2
Binary Table (Hard Version)
constructive algorithms
graphs
greedy
implementation
+
1900
5.4k
1388D
Captain Flint and Treasure
data structures
dfs and similar
graphs
greedy
implementation
trees
+
2000
7k
1365D
Solve The Maze
constructive algorithms
dfs and similar
dsu
graphs
greedy
implementation
shortest paths
+
1700
21.3k
1364D
Ehab's Last Corollary
constructive algorithms
dfs and similar
graphs
greedy
implementation
trees
+
2100
5.1k
1334D
Minimum Euler Cycle
constructive algorithms
graphs
greedy
implementation
+
1800
7.8k
1333D
Challenges in school №41
brute force
constructive algorithms
games
graphs
greedy
implementation
sortings
+
2100
4.2k
1266D
Decreasing Debts
constructive algorithms
data structures
graphs
greedy
implementation
math
two pointers
+
2000
3.9k
1213F
Unstable String Sort
data structures
dfs and similar
dsu
graphs
greedy
implementation
strings
+
2100
3.1k
1186F
Vus the Cossack and a Graph
dfs and similar
graphs
greedy
implementation
+
2400
1.2k
1156G
Optimizer
graphs
greedy
hashing
implementation
+
2700
171
1091E
New Year and the Acquaintance Estimation
binary search
data structures
graphs
greedy
implementation
math
sortings
+
2400
1.1k
908F
New Year and Rainbow Roads
graphs
greedy
implementation
+
2400
1.6k
780D
Innokenty and a Football League
2-sat
graphs
greedy
implementation
shortest paths
strings
+
1900
3.1k
723D
Lakes in Berland
dfs and similar
dsu
graphs
greedy
implementation
+
1600
7.6k
723F
st-Spanning Tree
dsu
graphs
greedy
implementation
+
2300
1.8k
520B
Two Buttons
dfs and similar
graphs
greedy
implementation
math
shortest paths
+
1400
64.7k
173D
Deputies
constructive algorithms
graphs
greedy
implementation
+
2500
314
67A
Partial Teacher
dp
graphs
greedy
implementation
+
1800
2.6k
showing 1–62 of 62