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
34 problems · filtered by 4 tags
Newest first
Oldest first
Rating ↑
Rating ↓
Most solved
Fewest solved
✓
#
Name
✎
Rating
↕
Solved
↕
2182F1
Christmas Reindeer (easy version)
bitmasks
brute force
combinatorics
dp
math
+
2300
1.3k
2163C
Monopati
brute force
combinatorics
dp
math
two pointers
+
1500
9.6k
2129D
Permutation Blackhole
brute force
combinatorics
dp
implementation
math
+
2600
2.5k
2128D
Sum of LDS
brute force
combinatorics
dp
greedy
math
+
1600
12.9k
2127F
Hamed and AghaBalaSar
brute force
combinatorics
dp
math
probabilities
+
2800
2.1k
2125E
Sets of Complementary Sums
brute force
combinatorics
dp
math
two pointers
+
2500
1.4k
2086D
Even String
brute force
combinatorics
dp
math
strings
+
1700
8.6k
2056F1
Xor of Median (Easy Version)
bitmasks
brute force
combinatorics
dp
math
+
2700
455
2056F2
Xor of Median (Hard Version)
bitmasks
brute force
combinatorics
dp
math
+
3000
362
2048G
Kevin and Matrices
brute force
combinatorics
dp
math
+
2800
761
1997F
Chips on a Line
brute force
combinatorics
dp
greedy
math
+
2700
1.3k
1982E
Number of k-good subarrays
bitmasks
brute force
combinatorics
divide and conquer
dp
math
meet-in-the-middle
+
2300
1.9k
1975F
Set
bitmasks
brute force
combinatorics
dfs and similar
divide and conquer
dp
math
+
2600
1.1k
1967C
Fenwick Tree
bitmasks
brute force
combinatorics
data structures
dp
math
trees
+
2300
2.3k
1957E
Carousel of Combinations
brute force
combinatorics
dp
math
number theory
+
2400
1.7k
1943D1
Counting Is Fun (Easy Version)
brute force
combinatorics
dp
math
+
2400
2k
1916H1
Matrix Rank (Easy Version)
brute force
combinatorics
dp
math
matrices
+
2700
751
1914G1
Light Bulbs (Easy Version)
brute force
combinatorics
dfs and similar
dp
dsu
graphs
math
trees
+
2100
2.5k
1909F1
Small Permutation Problem (Easy Version)
brute force
combinatorics
dp
math
+
2200
2.3k
1866M
Mighty Rock Tower
brute force
combinatorics
dp
math
probabilities
+
2400
1k
1808E3
Minibuses on Venus (hard version)
brute force
combinatorics
dp
math
+
2800
622
1731F
Function Sum
brute force
combinatorics
dp
fft
math
+
2500
924
1728G
Illumination
binary search
bitmasks
brute force
combinatorics
dp
math
two pointers
+
2700
669
1697E
Coloring
brute force
combinatorics
constructive algorithms
dp
geometry
graphs
greedy
implementation
math
+
2400
1.5k
1696H
Maximum Product?
brute force
combinatorics
dp
greedy
implementation
math
two pointers
+
3500
215
1671F
Permutation Counting
brute force
combinatorics
dp
fft
math
+
2700
514
1598E
Staircases
brute force
combinatorics
data structures
dfs and similar
dp
implementation
math
+
2100
2.5k
1540B
Tree Array
brute force
combinatorics
dp
graphs
math
probabilities
trees
+
2300
3.1k
1400G
Mercenaries
bitmasks
brute force
combinatorics
dp
dsu
math
two pointers
+
2600
1.2k
1109D
Sasha and Interesting Fact from Graph Theory
brute force
combinatorics
dp
math
trees
+
2400
1.5k
997B
Roman Digits
brute force
combinatorics
dp
greedy
math
+
2000
3.2k
747F
Igor and Interesting Numbers
brute force
combinatorics
dp
math
+
2500
521
685A
Robbers' watch
brute force
combinatorics
dp
math
+
1700
4.5k
476B
Dreamoon and WiFi
bitmasks
brute force
combinatorics
dp
math
probabilities
+
1300
38k
showing 1–34 of 34