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 3 tags
Newest first
Oldest first
Rating ↑
Rating ↓
Most solved
Fewest solved
✓
#
Name
✎
Rating
↕
Solved
↕
2156E
Best Time to Buy and Sell Stock
binary search
brute force
data structures
dp
games
graphs
greedy
+
2500
1k
2126F
1-1-1, Free Tree!
brute force
data structures
dfs and similar
graphs
implementation
trees
+
2000
4.4k
2122D
Traffic Lights
brute force
data structures
divide and conquer
dp
graphs
greedy
shortest paths
+
2400
2.8k
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
2091G
Gleb and Boating
brute force
constructive algorithms
data structures
dp
graphs
greedy
math
number theory
shortest paths
+
2300
1.6k
2063C
Remove Exactly Two
brute force
data structures
dfs and similar
dp
graphs
greedy
sortings
trees
+
1600
15.1k
2043E
Matrix Transformation
bitmasks
brute force
data structures
dfs and similar
graphs
greedy
implementation
+
2300
1.9k
2033E
Sakurako, Kosuke, and the Permutation
brute force
data structures
dfs and similar
dsu
graphs
greedy
math
+
1400
14.5k
2027C
Add Zeros
brute force
data structures
dfs and similar
dp
graphs
greedy
+
1500
14.1k
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
2002D1
DFS Checker (Easy Version)
brute force
data structures
dfs and similar
graphs
hashing
trees
+
1900
5.2k
1996G
Penacony
brute force
data structures
graphs
greedy
hashing
+
2200
2.4k
1985H1
Maximize the Largest Component (Easy Version)
brute force
data structures
dfs and similar
dsu
graphs
implementation
+
1700
7.4k
1920F1
Smooth Sailing (Easy Version)
binary search
brute force
data structures
dfs and similar
dsu
graphs
shortest paths
+
2500
1.3k
1895E
Infinite Card Game
binary search
brute force
data structures
dfs and similar
dp
dsu
games
graphs
greedy
sortings
two pointers
+
2300
1.9k
1826E
Walk the Runway
bitmasks
brute force
data structures
dp
graphs
implementation
sortings
+
2400
2k
1810E
Monsters
brute force
data structures
dfs and similar
dsu
graphs
greedy
+
2100
4k
1695C
Zero Path
brute force
data structures
dp
graphs
greedy
shortest paths
+
1700
14.5k
1654E
Arithmetic Operations
brute force
data structures
graphs
math
+
2300
2.4k
1625E1
Cats on the Upgrade (easy version)
brute force
data structures
dfs and similar
divide and conquer
dp
graphs
trees
+
2500
1.2k
1580E
Railway Construction
brute force
constructive algorithms
data structures
graphs
shortest paths
+
3400
126
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
1508C
Complete the MST
bitmasks
brute force
data structures
dfs and similar
dsu
graphs
greedy
trees
+
2500
1.8k
1487E
Cheap Dinner
brute force
data structures
graphs
greedy
implementation
sortings
two pointers
+
2000
5.2k
1285E
Delete a Segment
brute force
constructive algorithms
data structures
dp
graphs
sortings
trees
two pointers
+
2300
2k
1200F
Graph Traveler
brute force
data structures
dfs and similar
dp
graphs
implementation
math
number theory
+
2300
1.2k
1163E
Magical Permutation
bitmasks
brute force
constructive algorithms
data structures
graphs
math
+
2400
1.1k
1056G
Take Metro
brute force
data structures
graphs
+
2900
330
687D
Dividing Kingdom II
brute force
data structures
dsu
graphs
sortings
+
2500
1.2k
311C
Fetch the Treasure
brute force
data structures
graphs
shortest paths
+
2500
597
showing 1–33 of 33