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35 problems · filtered by 2 tags
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Name
✎
Rating
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Solved
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2241E
Fair and Square
combinatorics
dp
graphs
math
number theory
trees
+
1600
5.8k
2223C
Zhily and Signpost
chinese remainder theorem
dfs and similar
math
number theory
trees
+
2300
921
2211E
Minimum Path Cover
brute force
dp
greedy
interactive
math
number theory
trees
+
2500
1k
2200H
Six Seven
divide and conquer
math
number theory
strings
trees
+
2600
528
2190D
Prufer Vertex
combinatorics
dsu
number theory
probabilities
trees
+
2500
1k
2179F
Blackslex and Another RGB Walking
communication
constructive algorithms
graphs
interactive
number theory
trees
+
2000
2.9k
2112E
Tree Colorings
combinatorics
dfs and similar
dp
graphs
math
number theory
trees
+
2200
3.5k
2081D
MST in Modulo Graph
constructive algorithms
dsu
graphs
greedy
math
number theory
sortings
trees
+
2600
1.2k
2040D
Non Prime Tree
brute force
constructive algorithms
dfs and similar
greedy
number theory
trees
two pointers
+
1900
5.9k
1994D
Funny Game
constructive algorithms
dsu
graphs
greedy
math
number theory
trees
+
1900
7.7k
1916G
Optimizations From Chelsu
divide and conquer
dp
number theory
trees
+
3500
239
1844G
Tree Weights
bitmasks
constructive algorithms
data structures
dfs and similar
implementation
math
matrices
number theory
trees
+
3000
1.2k
1778F
Maximizing Root
dfs and similar
dp
graphs
math
number theory
trees
+
2600
964
1725E
Electrical Efficiency
combinatorics
data structures
dp
math
number theory
trees
+
2500
640
1654D
Potion Brewing Class
dfs and similar
math
number theory
trees
+
2100
3.1k
1627C
Not Assigning
constructive algorithms
dfs and similar
number theory
trees
+
1400
16.4k
1617E
Christmas Chocolates
dfs and similar
dp
games
graphs
implementation
math
number theory
shortest paths
trees
+
2700
1.1k
1592D
Hemose in ICPC ?
binary search
dfs and similar
implementation
interactive
math
number theory
trees
+
2300
2.7k
1491E
Fib-tree
brute force
dfs and similar
divide and conquer
number theory
trees
+
2400
2.4k
1401D
Maximum Distributed Tree
dfs and similar
dp
greedy
implementation
math
number theory
sortings
trees
+
1800
10.7k
1292D
Chaotic V.
dp
graphs
greedy
math
number theory
trees
+
2700
1.1k
1210C
Kamil and Making a Stream
math
number theory
trees
+
2000
3.7k
1101D
GCD Counting
data structures
dfs and similar
dp
number theory
trees
+
2000
5.5k
1034C
Region Separation
combinatorics
dp
number theory
trees
+
2700
1.1k
1025D
Recovering BST
brute force
dp
math
number theory
trees
+
2100
4.3k
990G
GCD Counting
divide and conquer
dp
dsu
number theory
trees
+
2400
2.4k
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
842C
Ilya And The Tree
dfs and similar
graphs
math
number theory
trees
+
2000
3.8k
809E
Surprise me!
divide and conquer
math
number theory
trees
+
3100
992
724G
Xor-matic Number of the Graph
bitmasks
graphs
math
number theory
trees
+
2600
1.6k
500G
New Year Running
number theory
trees
+
3200
312
463E
Caisa and Tree
brute force
dfs and similar
math
number theory
trees
+
2100
1.8k
348B
Apple Tree
dfs and similar
number theory
trees
+
2100
2.3k
337E
Divisor Tree
brute force
number theory
trees
+
2200
1.2k
showing 1–35 of 35