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35 problems · filtered by 3 tags
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Name
✎
Rating
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Solved
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2242E
Product of Closures
bitmasks
brute force
constructive algorithms
greedy
implementation
math
number theory
+
2200
1.4k
2215D
EXPloration, EXPloitation, and Gain Some EXPerience!
bitmasks
brute force
dp
greedy
implementation
+
2800
162
2170A
Maximum Neighborhood
bitmasks
brute force
greedy
implementation
math
+
800
20.6k
2108B
SUMdamental Decomposition
bitmasks
constructive algorithms
greedy
implementation
math
+
1300
14.9k
2081C
Quaternary Matrix
bitmasks
constructive algorithms
greedy
implementation
matrices
+
2700
372
2074F
Counting Necessary Nodes
bitmasks
divide and conquer
greedy
implementation
math
+
2000
2.5k
2048C
Kevin and Binary Strings
bitmasks
brute force
greedy
implementation
strings
+
1200
15.4k
2043E
Matrix Transformation
bitmasks
brute force
data structures
dfs and similar
graphs
greedy
implementation
+
2300
1.9k
2043F
Nim
bitmasks
brute force
combinatorics
dp
games
greedy
implementation
shortest paths
+
2700
918
1990D
Grid Puzzle
bitmasks
brute force
dp
greedy
implementation
+
1800
7.9k
1981C
Turtle and an Incomplete Sequence
bitmasks
brute force
constructive algorithms
greedy
implementation
math
+
1800
6.4k
1957B
A BIT of a Construction
bitmasks
constructive algorithms
greedy
implementation
+
1100
20.7k
1956D
Nene and the Mex Operator
bitmasks
brute force
constructive algorithms
divide and conquer
dp
greedy
implementation
math
+
2000
4.9k
1950F
0, 1, 2, Tree!
bitmasks
brute force
greedy
implementation
trees
+
1700
11.5k
1946D
Birthday Gift
bitmasks
brute force
constructive algorithms
greedy
implementation
+
1900
5.7k
1930D2
Sum over all Substrings (Hard Version)
bitmasks
divide and conquer
dp
dsu
greedy
implementation
strings
+
2100
3.1k
1918C
XOR-distance
bitmasks
greedy
implementation
math
+
1400
17.1k
1868B1
Candy Party (Easy Version)
bitmasks
constructive algorithms
graphs
greedy
implementation
math
+
1700
8.4k
1868B2
Candy Party (Hard Version)
bitmasks
constructive algorithms
dp
greedy
implementation
math
+
2100
2.8k
1856E2
PermuTree (hard version)
bitmasks
dfs and similar
dp
fft
greedy
implementation
math
trees
+
2700
1.8k
1829C
Mr. Perfectly Fine
bitmasks
greedy
implementation
+
800
32.9k
1807G2
Subsequence Addition (Hard Version)
bitmasks
dp
greedy
implementation
sortings
+
1100
29.4k
1789F
Serval and Brain Power
bitmasks
brute force
dp
greedy
implementation
strings
+
2700
1k
1788F
XOR, Tree, and Queries
bitmasks
constructive algorithms
dfs and similar
dsu
graphs
greedy
implementation
trees
+
2500
1.2k
1732C2
Sheikh (Hard Version)
binary search
bitmasks
brute force
greedy
implementation
two pointers
+
2100
3.2k
1665E
MinimizOR
bitmasks
brute force
data structures
divide and conquer
greedy
implementation
two pointers
+
2500
1.9k
1605D
Treelabeling
bitmasks
constructive algorithms
dfs and similar
games
greedy
implementation
trees
+
2100
3.3k
1554C
Mikasa
binary search
bitmasks
greedy
implementation
+
1800
9.9k
1494B
Berland Crossword
bitmasks
brute force
greedy
implementation
+
1400
15.4k
1391D
505
bitmasks
brute force
constructive algorithms
dp
greedy
implementation
+
2000
5.8k
1312C
Adding Powers
bitmasks
greedy
implementation
math
number theory
ternary search
+
1400
18.5k
960C
Subsequence Counting
bitmasks
constructive algorithms
greedy
implementation
+
1700
4.2k
437B
The Child and Set
bitmasks
greedy
implementation
sortings
+
1500
10.5k
276D
Little Girl and Maximum XOR
bitmasks
dp
greedy
implementation
math
+
1700
16.8k
202A
LLPS
binary search
bitmasks
brute force
greedy
implementation
strings
+
800
20.1k
showing 1–35 of 35