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59 problems · filtered by 3 tags
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Name
✎
Rating
↕
Solved
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2246D
diss_quack and Array Game
bitmasks
brute force
games
greedy
+
unrated
2.8k
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
2200B
Deletion Sort
bitmasks
brute force
greedy
sortings
+
800
27.9k
2196E1
Fuzzy Concatenation (Easy Version)
binary search
bitmasks
brute force
data structures
greedy
string suffix structures
+
2900
311
2182F2
Christmas Reindeer (hard version)
bitmasks
brute force
combinatorics
data structures
greedy
math
+
2500
1.1k
2173D
Taiga's Carry Chains
bitmasks
brute force
dp
greedy
math
+
1900
3.8k
2170A
Maximum Neighborhood
bitmasks
brute force
greedy
implementation
math
+
800
20.6k
2157G
Isaac's Queries
bitmasks
brute force
constructive algorithms
dfs and similar
divide and conquer
dp
greedy
interactive
math
probabilities
+
2800
672
2147E
Maximum OR Popcount
binary search
bitmasks
brute force
data structures
greedy
+
2300
2.2k
2093F
Hackers and Neural Networks
bitmasks
brute force
greedy
+
1800
6k
2086E
Zebra-like Numbers
bitmasks
brute force
constructive algorithms
dfs and similar
dp
greedy
math
+
2400
1.7k
2074C
XOR and Triangle
bitmasks
brute force
geometry
greedy
probabilities
+
1100
22.4k
2064D
Eating
binary search
bitmasks
brute force
data structures
dp
greedy
trees
two pointers
+
1900
6k
2061E
Kevin and And
bitmasks
brute force
dp
greedy
math
sortings
+
2000
4.1k
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
2020A
Find Minimum Operations
bitmasks
brute force
greedy
math
number theory
+
800
26.2k
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
1979D
Fixing a Binary String
bitmasks
brute force
constructive algorithms
dp
greedy
hashing
strings
+
1800
8k
1977D
XORificator
bitmasks
brute force
greedy
hashing
+
2300
2.4k
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
1935E
Distance Learning Courses in MAC
bitmasks
brute force
data structures
greedy
math
+
2400
1.7k
1929E
Sasha and the Happy Tree Cutting
bitmasks
brute force
dfs and similar
dp
graphs
greedy
math
trees
+
2300
2.1k
1913C
Game with Multiset
binary search
bitmasks
brute force
greedy
+
1300
17.8k
1903B
StORage room
bitmasks
brute force
constructive algorithms
greedy
+
1200
15k
1903D1
Maximum And Queries (easy version)
binary search
bitmasks
brute force
greedy
+
1700
7.4k
1882B
Sets and Union
bitmasks
brute force
constructive algorithms
greedy
+
1300
17.6k
1847C
Vampiric Powers, anyone?
bitmasks
brute force
dp
greedy
+
1400
15k
1789F
Serval and Brain Power
bitmasks
brute force
dp
greedy
implementation
strings
+
2700
1k
1742G
Orray
bitmasks
brute force
greedy
math
sortings
+
1500
13.7k
1732C2
Sheikh (Hard Version)
binary search
bitmasks
brute force
greedy
implementation
two pointers
+
2100
3.2k
1710C
XOR Triangle
bitmasks
brute force
constructive algorithms
dp
greedy
math
+
2500
1.7k
1705E
Mark and Professor Koro
binary search
bitmasks
brute force
combinatorics
data structures
greedy
+
2300
2.5k
1703G
Good Key, Bad Key
bitmasks
brute force
dp
greedy
math
+
1600
13k
1665E
MinimizOR
bitmasks
brute force
data structures
divide and conquer
greedy
implementation
two pointers
+
2500
1.9k
1661B
Getting Zero
bitmasks
brute force
dfs and similar
dp
graphs
greedy
shortest paths
+
1300
21.1k
1641D
Two Arrays
bitmasks
brute force
combinatorics
greedy
hashing
math
two pointers
+
2700
1.6k
1622E
Math Test
bitmasks
brute force
greedy
+
2200
2.3k
1599J
Bob's Beautiful Array
bitmasks
brute force
greedy
+
2600
352
1560F1
Nearest Beautiful Number (easy version)
binary search
bitmasks
brute force
constructive algorithms
dfs and similar
greedy
+
1900
6.8k
1560F2
Nearest Beautiful Number (hard version)
bitmasks
brute force
constructive algorithms
dfs and similar
dp
greedy
+
2100
5.1k
1554B
Cobb
bitmasks
brute force
greedy
math
+
1700
13.9k
1553C
Penalty
bitmasks
brute force
dp
greedy
+
1200
20k
1516B
AGAGA XOOORRR
bitmasks
brute force
dp
greedy
+
1500
26.6k
1508C
Complete the MST
bitmasks
brute force
data structures
dfs and similar
dsu
graphs
greedy
trees
+
2500
1.8k
1500C
Matrix Sorting
bitmasks
brute force
constructive algorithms
greedy
two pointers
+
2600
983
1494B
Berland Crossword
bitmasks
brute force
greedy
implementation
+
1400
15.4k
1395C
Boboniu and Bit Operations
bitmasks
brute force
dp
greedy
+
1600
15.4k
1391D
505
bitmasks
brute force
constructive algorithms
dp
greedy
implementation
+
2000
5.8k
1285D
Dr. Evil Underscores
bitmasks
brute force
dfs and similar
divide and conquer
dp
greedy
strings
trees
+
1900
8.7k
1209E1
Rotate Columns (easy version)
bitmasks
brute force
dp
greedy
sortings
+
2000
3.3k
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
202A
LLPS
binary search
bitmasks
brute force
greedy
implementation
strings
+
800
20.1k
27B
Tournament
bitmasks
brute force
dfs and similar
greedy
+
1300
6k
showing 1–59 of 59