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
58 problems · filtered by 2 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
2117G
Omg Graph
brute force
dsu
graphs
greedy
shortest paths
sortings
+
1900
5.4k
2108C
Neo's Escape
binary search
brute force
data structures
dp
dsu
graphs
greedy
implementation
+
1500
15.1k
2057E1
Another Exercise on Graphs (Easy Version)
binary search
brute force
dp
dsu
graphs
shortest paths
sortings
+
2300
2.7k
2049F
MEX OR Mania
bitmasks
brute force
data structures
dsu
implementation
+
2700
600
2033E
Sakurako, Kosuke, and the Permutation
brute force
data structures
dfs and similar
dsu
graphs
greedy
math
+
1400
14.5k
2021E1
Digital Village (Easy Version)
brute force
data structures
dfs and similar
dp
dsu
fft
graphs
greedy
implementation
math
trees
+
2300
2k
2020D
Connect the Dots
brute force
dp
dsu
graphs
math
trees
+
1800
7.6k
2006B
Iris and the Tree
brute force
data structures
dfs and similar
dsu
math
trees
+
1800
4.4k
2001C
Guess The Tree
binary search
brute force
dfs and similar
divide and conquer
dsu
greedy
interactive
trees
+
1500
13.1k
1987E
Wonderful Tree!
brute force
data structures
dfs and similar
dsu
greedy
trees
+
2000
4.2k
1985H1
Maximize the Largest Component (Easy Version)
brute force
data structures
dfs and similar
dsu
graphs
implementation
+
1700
7.4k
1948G
MST with Matching
bitmasks
brute force
dsu
graph matchings
trees
+
3100
976
1927D
Find the Different Ones!
binary search
brute force
data structures
dp
dsu
greedy
two pointers
+
1300
35.3k
1922D
Berserk Monsters
brute force
data structures
dsu
implementation
math
+
1900
6.9k
1920D
Array Repetition
binary search
brute force
dsu
implementation
math
+
1900
6.7k
1920F1
Smooth Sailing (Easy Version)
binary search
brute force
data structures
dfs and similar
dsu
graphs
shortest paths
+
2500
1.3k
1914G1
Light Bulbs (Easy Version)
brute force
combinatorics
dfs and similar
dp
dsu
graphs
math
trees
+
2100
2.5k
1895E
Infinite Card Game
binary search
brute force
data structures
dfs and similar
dp
dsu
games
graphs
greedy
sortings
two pointers
+
2300
1.9k
1845D
Rating System
binary search
brute force
data structures
dp
dsu
greedy
math
two pointers
+
1800
9.2k
1814F
Communication Towers
brute force
divide and conquer
dsu
+
2700
1k
1810E
Monsters
brute force
data structures
dfs and similar
dsu
graphs
greedy
+
2100
4k
1800E1
Unforgivable Curse (easy version)
brute force
constructive algorithms
dsu
graphs
greedy
strings
+
1400
15.9k
1800E2
Unforgivable Curse (hard version)
brute force
constructive algorithms
dfs and similar
dsu
graphs
greedy
strings
+
1500
15.6k
1797E
Li Hua and Array
brute force
data structures
dsu
math
number theory
two pointers
+
2300
1.7k
1764F
Doremy's Experimental Tree
brute force
constructive algorithms
dfs and similar
dsu
sortings
trees
+
2500
1.3k
1761E
Make It Connected
binary search
brute force
constructive algorithms
dsu
graphs
greedy
matrices
trees
two pointers
+
2400
2.2k
1726D
Edge Split
brute force
constructive algorithms
dfs and similar
dsu
graphs
probabilities
trees
+
2000
4.2k
1696F
Tree Recovery
brute force
constructive algorithms
dfs and similar
dsu
graphs
trees
+
2600
1.2k
1689E
ANDfinity
bitmasks
brute force
constructive algorithms
dfs and similar
dsu
graphs
+
2500
1.4k
1687C
Sanae and Giant Robot
binary search
brute force
data structures
dsu
greedy
sortings
+
2500
1.7k
1687D
Cute number
binary search
brute force
data structures
dsu
implementation
math
+
2900
775
1661E
Narrow Components
brute force
data structures
dp
dsu
math
trees
+
2500
1.2k
1659E
AND-MEX Walk
bitmasks
brute force
constructive algorithms
dfs and similar
dsu
graphs
+
2200
2k
1641C
Anonymity Is Important
binary search
brute force
data structures
dsu
greedy
sortings
+
2200
2.9k
1575J
Jeopardy of Dropped Balls
binary search
brute force
dsu
implementation
+
1500
4.3k
1559D1
Mocha and Diana (Easy Version)
brute force
constructive algorithms
dsu
graphs
greedy
trees
+
1400
16.5k
1559D2
Mocha and Diana (Hard Version)
brute force
constructive algorithms
dfs and similar
dsu
graphs
greedy
trees
two pointers
+
2500
3.2k
1553E
Permutation Shift
brute force
combinatorics
constructive algorithms
dfs and similar
dsu
graphs
math
+
2100
3.8k
1553G
Common Divisor Graph
brute force
constructive algorithms
dsu
graphs
hashing
math
number theory
+
2700
1.3k
1508C
Complete the MST
bitmasks
brute force
data structures
dfs and similar
dsu
graphs
greedy
trees
+
2500
1.8k
1400G
Mercenaries
bitmasks
brute force
combinatorics
dp
dsu
math
two pointers
+
2600
1.2k
1305G
Kuroni and Antihype
bitmasks
brute force
dp
dsu
graphs
+
3500
1.5k
1130C
Connect
brute force
dfs and similar
dsu
+
1400
9.5k
982D
Shark
brute force
data structures
dsu
trees
+
1900
2.5k
979D
Kuro and GCD and XOR and SUM
binary search
bitmasks
brute force
data structures
dp
dsu
greedy
math
number theory
strings
trees
+
2200
2.3k
920F
SUM and REPLACE
brute force
data structures
dsu
number theory
+
2000
9k
778C
Peterson Polyglot
brute force
dfs and similar
dsu
hashing
strings
trees
+
2500
1k
687D
Dividing Kingdom II
brute force
data structures
dsu
graphs
sortings
+
2500
1.2k
515B
Drazil and His Happy Friends
brute force
dsu
meet-in-the-middle
number theory
+
1300
7.8k
506D
Mr. Kitayuta's Colorful Graph
brute force
dfs and similar
dsu
graphs
+
2400
2.6k
409H
A + B Strikes Back
*special
brute force
constructive algorithms
dsu
implementation
+
1500
9.6k
358E
Dima and Kicks
brute force
dsu
graphs
implementation
+
2300
446
217A
Ice Skating
brute force
dfs and similar
dsu
graphs
+
1200
25.1k
177C2
Party
brute force
dfs and similar
dsu
graphs
+
1500
3.1k
105D
Entertaining Geodetics
brute force
dsu
implementation
+
2700
149
60D
Savior
brute force
dsu
math
+
2500
593
showing 1–58 of 58