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
56 problems · filtered by 3 tags
Newest first
Oldest first
Rating ↑
Rating ↓
Most solved
Fewest solved
✓
#
Name
✎
Rating
↕
Solved
↕
2249B
Permutation Cuts
combinatorics
implementation
math
+
unrated
2.9k
2228E2
Amanojaku and Sequence (Hard Version)
combinatorics
data structures
implementation
math
+
2500
307
2180G
Balance
bitmasks
combinatorics
implementation
math
+
3500
154
2161E
Left is Always Right
combinatorics
implementation
math
+
2400
803
2154F1
Bombing (Easy Version)
brute force
combinatorics
constructive algorithms
implementation
math
+
2700
594
2150B
Grid Counting
combinatorics
implementation
math
+
1700
7.5k
2138D
Antiamuny and Slider Movement
brute force
combinatorics
implementation
math
sortings
+
2600
682
2129D
Permutation Blackhole
brute force
combinatorics
dp
implementation
math
+
2600
2.5k
2097B
Baggage Claim
combinatorics
dfs and similar
dp
dsu
graphs
implementation
math
trees
+
2300
2k
2084E
Blossom
binary search
combinatorics
dp
implementation
math
two pointers
+
2400
1.8k
2075E
XOR Matrix
bitmasks
combinatorics
dp
implementation
math
+
2500
1.2k
2063F1
Counting Is Not Fun (Easy Version)
combinatorics
data structures
dfs and similar
dp
dsu
graphs
hashing
implementation
math
trees
+
2400
1.6k
2039E
Shohag Loves Inversions
combinatorics
dp
implementation
math
+
2200
2.4k
2030E
MEXimize the Score
combinatorics
data structures
dp
greedy
implementation
math
+
2200
2k
1996E
Decode
combinatorics
data structures
implementation
math
+
1600
12.9k
1935D
Exam in MAC
binary search
combinatorics
implementation
math
+
1800
11k
1928F
Digital Patterns
combinatorics
data structures
implementation
math
+
2900
479
1919E
Counting Prefixes
combinatorics
constructive algorithms
dp
implementation
math
+
2600
1.2k
1917D
Yet Another Inversions Problem
combinatorics
data structures
dp
implementation
math
number theory
+
2300
2.1k
1868C
Travel Plan
combinatorics
dp
implementation
math
trees
+
2400
1.4k
1861E
Non-Intersecting Subpermutations
combinatorics
dp
implementation
math
+
2300
2.1k
1850G
The Morning Star
combinatorics
data structures
geometry
implementation
math
sortings
+
1500
15.8k
1847E
Triangle Platinum?
brute force
combinatorics
implementation
interactive
math
probabilities
+
2900
398
1833F
Ira and Flamenco
combinatorics
constructive algorithms
data structures
implementation
math
sortings
two pointers
+
1700
10.6k
1789C
Serval and Toxel's Arrays
combinatorics
dp
implementation
math
+
1500
10.1k
1763D
Valid Bitonic Permutations
combinatorics
dp
implementation
math
number theory
+
2200
2.4k
1743A
Password
brute force
combinatorics
implementation
math
+
800
29.9k
1732A
Bestie
brute force
combinatorics
constructive algorithms
implementation
math
number theory
+
1000
17.8k
1715C
Monoblock
combinatorics
data structures
implementation
math
+
1700
10.6k
1701F
Points
combinatorics
data structures
implementation
math
matrices
+
2500
1.2k
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
1644E
Expand the Path
brute force
combinatorics
data structures
implementation
math
+
1900
3.5k
1603F
October 18, 2017
combinatorics
dp
implementation
math
+
2700
402
1598D
Training Session
combinatorics
data structures
geometry
implementation
math
+
1700
10.7k
1598E
Staircases
brute force
combinatorics
data structures
dfs and similar
dp
implementation
math
+
2100
2.5k
1574E
Coloring
combinatorics
constructive algorithms
implementation
math
+
2500
1.1k
1550D
Excellent Arrays
binary search
combinatorics
constructive algorithms
implementation
math
sortings
two pointers
+
2300
2.1k
1542D
Priority Queue
combinatorics
dp
implementation
math
ternary search
+
2200
3k
1527D
MEX Tree
combinatorics
dfs and similar
implementation
math
trees
+
2400
2.3k
1462E2
Close Tuples (hard version)
binary search
combinatorics
implementation
math
sortings
two pointers
+
1700
11.6k
1450H2
Multithreading (Hard Version)
combinatorics
implementation
math
+
3300
333
1403C
Chess Rush
*special
combinatorics
dp
implementation
math
+
3200
95
1328B
K-th Beautiful String
binary search
brute force
combinatorics
implementation
math
+
1300
32.4k
1307E
Cow and Treats
binary search
combinatorics
dp
greedy
implementation
math
+
2500
1.5k
817B
Makes And The Product
combinatorics
implementation
math
sortings
+
1500
6.5k
804B
Minimum number of steps
combinatorics
greedy
implementation
math
+
1400
10.3k
696C
PLEASE
combinatorics
dp
implementation
math
matrices
+
2000
2.3k
571A
Lengthening Sticks
combinatorics
implementation
math
+
2100
2.7k
553B
Kyoya and Permutation
binary search
combinatorics
constructive algorithms
greedy
implementation
math
+
1900
2.3k
551D
GukiZ and Binary Operations
combinatorics
implementation
math
matrices
number theory
+
2100
2.1k
407C
Curious Array
brute force
combinatorics
implementation
math
+
2500
1.2k
353B
Two Heaps
combinatorics
constructive algorithms
greedy
implementation
math
sortings
+
1900
2.4k
340C
Tourist Problem
combinatorics
implementation
math
+
1600
4.7k
235E
Number Challenge
combinatorics
dp
implementation
math
number theory
+
2600
963
113E
Sleeping
combinatorics
implementation
math
+
2700
184
showing 1–56 of 56