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154 problems · filtered by 2 tags
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Rating
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1392G
Omkar and Pies
bitmasks
dfs and similar
dp
math
shortest paths
+
2900
734
1388C
Uncle Bogdan and Country Happiness
dfs and similar
greedy
math
trees
+
1800
10.5k
1387A
Graph
*special
binary search
dfs and similar
dp
math
ternary search
+
2100
974
1352F
Binary String Reconstruction
constructive algorithms
dfs and similar
math
+
1500
19.8k
1344C
Quantifier Question
dfs and similar
dp
graphs
math
+
2600
2k
1338B
Edge Weight Assignment
bitmasks
constructive algorithms
dfs and similar
greedy
math
trees
+
1800
9.7k
1338D
Nested Rubber Bands
constructive algorithms
dfs and similar
dp
math
trees
+
2700
1.2k
1327D
Infinite Path
brute force
dfs and similar
graphs
math
number theory
+
2200
3.6k
1299D
Around the World
bitmasks
combinatorics
dfs and similar
dp
graphs
math
trees
+
3000
652
1270G
Subset with Zero Sum
constructive algorithms
dfs and similar
graphs
math
+
2700
3.1k
1249B2
Books Exchange (hard version)
dfs and similar
dsu
math
+
1300
18.6k
1236F
Alice and the Cactus
dfs and similar
graphs
math
probabilities
+
3000
327
1200F
Graph Traveler
brute force
data structures
dfs and similar
dp
graphs
implementation
math
number theory
+
2300
1.2k
1158C
Permutation recovery
constructive algorithms
data structures
dfs and similar
graphs
greedy
math
sortings
+
2100
2.3k
1152B
Neko Performs Cat Furrier Transform
bitmasks
constructive algorithms
dfs and similar
math
+
1300
9.4k
1146D
Frog Jumping
dfs and similar
math
number theory
+
2100
1.2k
1142B
Lynyrd Skynyrd
data structures
dfs and similar
dp
math
trees
+
2000
4k
1139C
Edgy Trees
dfs and similar
dsu
graphs
math
trees
+
1500
17.4k
1103C
Johnny Solving
constructive algorithms
dfs and similar
graphs
math
+
2700
1k
1062D
Fun with Integers
dfs and similar
graphs
implementation
math
+
1800
4.2k
1039C
Network Safety
dfs and similar
dsu
graphs
math
sortings
+
2200
1.5k
977D
Divide by three, multiply by two
dfs and similar
math
sortings
+
1400
20.9k
920C
Swap Adjacent Elements
dfs and similar
greedy
math
sortings
two pointers
+
1400
10.1k
912E
Prime Gift
binary search
dfs and similar
math
meet-in-the-middle
number theory
two pointers
+
2400
2.1k
884C
Bertown Subway
dfs and similar
greedy
math
+
1500
5.2k
847I
Noise Level
dfs and similar
implementation
math
+
1900
1.7k
845G
Shortest Path Problem?
dfs and similar
graphs
math
+
2300
2.2k
843A
Sorting by Subsequences
dfs and similar
dsu
implementation
math
sortings
+
1400
6k
843C
Upgrading Tree
constructive algorithms
dfs and similar
graphs
math
trees
+
2600
416
842C
Ilya And The Tree
dfs and similar
graphs
math
number theory
trees
+
2000
3.8k
802J3
Send the Fool Further! (hard)
dfs and similar
dp
math
trees
+
2400
405
766E
Mahmoud and a xor trip
bitmasks
constructive algorithms
data structures
dfs and similar
dp
math
trees
+
2100
3.6k
741A
Arpa's loud Owf and Mehrdad's evil plan
dfs and similar
math
+
1600
5.7k
727A
Transformation: from A to B
brute force
dfs and similar
math
+
1000
18.6k
711D
Directed Roads
combinatorics
dfs and similar
graphs
math
+
1900
5.1k
696B
Puzzles
dfs and similar
math
probabilities
trees
+
1700
3.9k
691D
Swaps in Permutation
dfs and similar
dsu
math
+
1700
6.7k
679D
Bear and Chase
brute force
dfs and similar
graphs
implementation
math
probabilities
+
2900
378
633G
Yash And Trees
bitmasks
data structures
dfs and similar
math
number theory
+
2800
934
612E
Square Root of Permutation
combinatorics
constructive algorithms
dfs and similar
graphs
math
+
2200
2.1k
603B
Moodular Arithmetic
combinatorics
dfs and similar
dsu
math
number theory
+
1800
2.7k
593D
Happy Tree Party
data structures
dfs and similar
graphs
math
trees
+
2400
1.5k
557D
Vitaly and Cycle
combinatorics
dfs and similar
graphs
math
+
2000
2.4k
542D
Superhero's Job
dfs and similar
dp
hashing
math
number theory
+
2600
541
538E
Demiurges Play Again
dfs and similar
dp
math
trees
+
2200
1.7k
520B
Two Buttons
dfs and similar
graphs
greedy
implementation
math
shortest paths
+
1400
64.7k
500B
New Year Permutation
dfs and similar
dsu
graphs
greedy
math
sortings
+
1600
9.7k
490D
Chocolate
brute force
dfs and similar
math
meet-in-the-middle
number theory
+
1900
2.3k
486D
Valid Sets
dfs and similar
dp
math
trees
+
2100
4.4k
463E
Caisa and Tree
brute force
dfs and similar
math
number theory
trees
+
2100
1.8k
217D
Bitonix' Patrol
bitmasks
brute force
combinatorics
dfs and similar
math
+
2900
282
167E
Wizards and Bets
dfs and similar
graphs
math
matrices
+
2900
727
150B
Quantity of Strings
combinatorics
dfs and similar
graphs
math
+
1600
5.5k
134B
Pairs of Numbers
brute force
dfs and similar
math
number theory
+
1900
2.5k
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