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31 problems · filtered by 3 tags
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Name
✎
Rating
↕
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2205G
Simons and Diophantus Equation
bitmasks
brute force
data structures
math
number theory
+
3000
231
2182F2
Christmas Reindeer (hard version)
bitmasks
brute force
combinatorics
data structures
greedy
math
+
2500
1.1k
2179H
Blackslex and Plants
bitmasks
data structures
dp
implementation
math
+
2200
1.4k
2143F
Increasing Xor
bitmasks
data structures
math
+
2700
454
2131G
Wafu!
bitmasks
brute force
data structures
dfs and similar
dp
math
+
2000
3.9k
2118C
Make It Beautiful
bitmasks
data structures
greedy
math
+
1300
19k
2071D2
Infinite Sequence (Hard Version)
bitmasks
brute force
constructive algorithms
data structures
dp
implementation
math
+
2500
1.1k
2037G
Natlan Exploring
bitmasks
combinatorics
data structures
dp
math
number theory
+
2000
3.9k
2009F
Firefly's Queries
bitmasks
data structures
flows
math
+
1700
8.7k
1973B
Cat, Fox and the Lonely Array
binary search
bitmasks
data structures
greedy
math
two pointers
+
1300
17.1k
1967C
Fenwick Tree
bitmasks
brute force
combinatorics
data structures
dp
math
trees
+
2300
2.3k
1935E
Distance Learning Courses in MAC
bitmasks
brute force
data structures
greedy
math
+
2400
1.7k
1926E
Vlad and an Odd Ordering
binary search
bitmasks
data structures
dp
implementation
math
number theory
+
1500
15.2k
1895D
XOR Construction
bitmasks
constructive algorithms
data structures
math
string suffix structures
trees
+
1900
7.2k
1864E
Guess Game
bitmasks
data structures
games
math
probabilities
sortings
strings
trees
+
2100
3.1k
1847F
The Boss's Identity
binary search
bitmasks
data structures
dfs and similar
greedy
math
sortings
+
2500
1.1k
1844G
Tree Weights
bitmasks
constructive algorithms
data structures
dfs and similar
implementation
math
matrices
number theory
trees
+
3000
1.2k
1792D
Fixed Prefix Permutations
binary search
bitmasks
data structures
hashing
math
sortings
+
1700
8.3k
1743G
Antifibonacci Cut
bitmasks
combinatorics
constructive algorithms
data structures
dp
hashing
math
+
3000
381
1658D2
388535 (Hard Version)
bitmasks
brute force
data structures
math
+
2300
3.2k
1625D
Binary Spiders
bitmasks
data structures
implementation
math
sortings
trees
+
2300
2.4k
1616H
Keep XOR Low
bitmasks
combinatorics
data structures
divide and conquer
dp
math
+
3000
1.4k
1498F
Christmas Game
bitmasks
data structures
dfs and similar
dp
games
math
trees
+
2500
1.1k
1416C
XOR Inverse
bitmasks
data structures
divide and conquer
dp
greedy
math
sortings
strings
trees
+
2000
5.2k
1322B
Present
binary search
bitmasks
constructive algorithms
data structures
math
sortings
+
2100
4.7k
1163E
Magical Permutation
bitmasks
brute force
constructive algorithms
data structures
graphs
math
+
2400
1.1k
1114F
Please, another Queries on Array?
bitmasks
data structures
divide and conquer
math
number theory
+
2400
2.6k
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
766E
Mahmoud and a xor trip
bitmasks
constructive algorithms
data structures
dfs and similar
dp
math
trees
+
2100
3.6k
633G
Yash And Trees
bitmasks
data structures
dfs and similar
math
number theory
+
2800
933
241B
Friends
binary search
bitmasks
data structures
math
+
2700
1k
showing 1–31 of 31