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41 problems · filtered by 3 tags
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Name
✎
Rating
↕
Solved
↕
2219D
MEX Replacement on Tree
data structures
implementation
math
trees
+
2700
533
2210F
A Simple Problem
binary search
data structures
greedy
math
trees
+
2700
263
2164F2
Chain Prefix Rank (Hard Version)
binary search
combinatorics
data structures
dfs and similar
dp
graphs
math
trees
+
2900
648
2152G
Query Jungle
data structures
implementation
math
matrices
trees
+
2900
2.7k
2135F
To the Infinity
data structures
hashing
math
trees
+
3500
381
2063F1
Counting Is Not Fun (Easy Version)
combinatorics
data structures
dfs and similar
dp
dsu
graphs
hashing
implementation
math
trees
+
2400
1.6k
2048F
Kevin and Math Class
brute force
data structures
divide and conquer
dp
implementation
math
trees
+
2500
1.3k
2031E
Penchick and Chloe's Trees
data structures
dfs and similar
dp
greedy
implementation
math
sortings
trees
+
2100
2.8k
2021E1
Digital Village (Easy Version)
brute force
data structures
dfs and similar
dp
dsu
fft
graphs
greedy
implementation
math
trees
+
2300
2k
2021E2
Digital Village (Hard Version)
data structures
dp
dsu
graphs
math
trees
+
2500
1.3k
2021E3
Digital Village (Extreme Version)
data structures
dfs and similar
dp
dsu
graphs
greedy
math
trees
+
2800
725
2006B
Iris and the Tree
brute force
data structures
dfs and similar
dsu
math
trees
+
1800
4.4k
1976E
Splittable Permutations
combinatorics
data structures
dfs and similar
greedy
math
trees
+
2500
1.3k
1967C
Fenwick Tree
bitmasks
brute force
combinatorics
data structures
dp
math
trees
+
2300
2.3k
1929F
Sasha and the Wedding Binary Search Tree
brute force
combinatorics
data structures
dfs and similar
math
trees
+
2300
2.4k
1902F
Trees and XOR Queries Again
data structures
dfs and similar
divide and conquer
graphs
implementation
math
trees
+
2400
1.5k
1895D
XOR Construction
bitmasks
constructive algorithms
data structures
math
string suffix structures
trees
+
1900
7.2k
1887D
Split
binary search
data structures
divide and conquer
dsu
math
trees
two pointers
+
2700
1.3k
1864E
Guess Game
bitmasks
data structures
games
math
probabilities
sortings
strings
trees
+
2100
3.1k
1844G
Tree Weights
bitmasks
constructive algorithms
data structures
dfs and similar
implementation
math
matrices
number theory
trees
+
3000
1.2k
1843F1
Omsk Metro (simple version)
data structures
dfs and similar
dp
graphs
greedy
math
trees
+
1800
6.5k
1843F2
Omsk Metro (hard version)
data structures
dfs and similar
divide and conquer
dp
math
trees
+
2300
2.2k
1810F
M-tree
data structures
math
sortings
trees
+
2800
701
1748E
Yet Another Array Counting Problem
binary search
data structures
divide and conquer
dp
flows
math
trees
+
2300
2.8k
1725E
Electrical Efficiency
combinatorics
data structures
dp
math
number theory
trees
+
2500
640
1718D
Permutation for Burenka
data structures
graph matchings
greedy
math
trees
+
3300
449
1661E
Narrow Components
brute force
data structures
dp
dsu
math
trees
+
2500
1.2k
1633E
Spanning Tree Queries
binary search
data structures
dfs and similar
dsu
graphs
greedy
math
sortings
trees
+
2400
1.8k
1625D
Binary Spiders
bitmasks
data structures
implementation
math
sortings
trees
+
2300
2.4k
1615E
Purple Crayon
data structures
dfs and similar
games
graphs
greedy
math
sortings
trees
+
2400
1.8k
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
1284F
New Year and Social Network
data structures
graph matchings
graphs
math
trees
+
3200
424
1179C
Serge and Dining Room
binary search
data structures
graph matchings
greedy
implementation
math
trees
+
2200
2.5k
1142B
Lynyrd Skynyrd
data structures
dfs and similar
dp
math
trees
+
2000
4k
986E
Prince's Problem
brute force
data structures
math
number theory
trees
+
2800
957
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
603E
Pastoral Oddities
data structures
divide and conquer
dsu
math
trees
+
3000
1.6k
593D
Happy Tree Party
data structures
dfs and similar
graphs
math
trees
+
2400
1.5k
75D
Big Maximum Sum
data structures
dp
greedy
implementation
math
trees
+
2000
2.1k
showing 1–41 of 41