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56 problems · filtered by 3 tags
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Name
✎
Rating
↕
Solved
↕
2158F1
Distinct GCDs (Easy Version)
constructive algorithms
graphs
math
number theory
+
2600
450
2158F2
Distinct GCDs (Hard Version)
combinatorics
constructive algorithms
graphs
math
number theory
+
3000
287
2155D
Batteries
brute force
constructive algorithms
graph matchings
graphs
interactive
math
+
1800
6.2k
2152E
Monotone Subsequence
constructive algorithms
graphs
greedy
interactive
math
+
2100
3.9k
2131H
Sea, You & copriMe
brute force
constructive algorithms
graphs
greedy
math
number theory
+
2600
909
2127G2
Inter Active (Hard Version)
binary search
bitmasks
constructive algorithms
graphs
implementation
interactive
math
probabilities
+
3500
126
2113F
Two Arrays
constructive algorithms
dfs and similar
graphs
math
+
2500
992
2092E
She knows...
combinatorics
constructive algorithms
graphs
math
+
2100
3.9k
2091G
Gleb and Boating
brute force
constructive algorithms
data structures
dp
graphs
greedy
math
number theory
shortest paths
+
2300
1.6k
2081D
MST in Modulo Graph
constructive algorithms
dsu
graphs
greedy
math
number theory
sortings
trees
+
2600
1.2k
2078B
Vicious Labyrinth
constructive algorithms
graphs
greedy
implementation
math
+
1100
18.6k
2062F
Traveling Salescat
constructive algorithms
dp
geometry
graphs
greedy
math
sortings
+
2900
633
1994D
Funny Game
constructive algorithms
dsu
graphs
greedy
math
number theory
trees
+
1900
7.7k
1991D
Prime XOR Coloring
bitmasks
constructive algorithms
graphs
greedy
math
number theory
+
1900
8k
1928E
Modular Sequence
brute force
constructive algorithms
dp
graphs
greedy
math
number theory
+
2300
2.3k
1868B1
Candy Party (Easy Version)
bitmasks
constructive algorithms
graphs
greedy
implementation
math
+
1700
8.4k
1852B
Imbalanced Arrays
constructive algorithms
graphs
greedy
math
sortings
two pointers
+
1800
5.5k
1815F
OH NO1 (-2-3-4)
constructive algorithms
graphs
math
+
3500
324
1718E
Impressionism
constructive algorithms
graphs
implementation
math
+
3500
228
1704E
Count Seconds
brute force
constructive algorithms
dp
graphs
implementation
math
+
2200
2.7k
1698F
Equal Reversal
constructive algorithms
graphs
implementation
math
+
2800
782
1697E
Coloring
brute force
combinatorics
constructive algorithms
dp
geometry
graphs
greedy
implementation
math
+
2400
1.5k
1682E
Unordered Swaps
constructive algorithms
dfs and similar
graphs
greedy
math
sortings
trees
+
2700
777
1672G
Cross Xor
constructive algorithms
graphs
math
matrices
+
3200
676
1656F
Parametric MST
binary search
constructive algorithms
graphs
greedy
math
sortings
+
2600
1.3k
1656G
Cycle Palindrome
constructive algorithms
graphs
math
+
3200
505
1581B
Diameter of Graph
constructive algorithms
graphs
greedy
math
+
1200
12.6k
1553E
Permutation Shift
brute force
combinatorics
constructive algorithms
dfs and similar
dsu
graphs
math
+
2100
3.8k
1553G
Common Divisor Graph
brute force
constructive algorithms
dsu
graphs
hashing
math
number theory
+
2700
1.3k
1552D
Array Differentiation
bitmasks
brute force
constructive algorithms
dfs and similar
dp
graphs
math
+
1800
8k
1543E
The Final Pursuit
bitmasks
constructive algorithms
divide and conquer
graphs
greedy
math
+
2700
499
1537F
Figure Fixing
constructive algorithms
dfs and similar
dsu
graphs
greedy
math
+
2200
2.9k
1530D
Secret Santa
constructive algorithms
flows
graphs
greedy
math
+
1600
10.2k
1506F
Triangular Paths
constructive algorithms
graphs
math
shortest paths
sortings
+
2000
3.8k
1491G
Switch and Flip
constructive algorithms
graphs
math
+
2800
1k
1487C
Minimum Ties
brute force
constructive algorithms
dfs and similar
graphs
greedy
implementation
math
+
1500
15.6k
1485D
Multiples and Power Differences
constructive algorithms
graphs
math
number theory
+
2200
5.7k
1328D
Carousel
constructive algorithms
dp
graphs
greedy
math
+
1800
14.7k
1270G
Subset with Zero Sum
constructive algorithms
dfs and similar
graphs
math
+
2700
3.1k
1266D
Decreasing Debts
constructive algorithms
data structures
graphs
greedy
implementation
math
two pointers
+
2000
3.9k
1214E
Petya and Construction Set
constructive algorithms
graphs
math
sortings
trees
+
2000
2.9k
1163E
Magical Permutation
bitmasks
brute force
constructive algorithms
data structures
graphs
math
+
2400
1.1k
1158C
Permutation recovery
constructive algorithms
data structures
dfs and similar
graphs
greedy
math
sortings
+
2100
2.3k
1148G
Gold Experience
constructive algorithms
graphs
math
number theory
probabilities
+
3300
615
1103C
Johnny Solving
constructive algorithms
dfs and similar
graphs
math
+
2700
1k
1009D
Relatively Prime Graph
brute force
constructive algorithms
graphs
greedy
math
+
1700
6.7k
899C
Dividing the numbers
constructive algorithms
graphs
math
+
1300
9.1k
850D
Tournament Construction
constructive algorithms
dp
graphs
greedy
math
+
2800
498
843C
Upgrading Tree
constructive algorithms
dfs and similar
graphs
math
trees
+
2600
416
830E
Perpetual Motion Machine
constructive algorithms
dp
graphs
implementation
math
trees
+
3100
373
772C
Vulnerable Kerbals
constructive algorithms
dp
graphs
math
number theory
+
2300
1.5k
612E
Square Root of Permutation
combinatorics
constructive algorithms
dfs and similar
graphs
math
+
2200
2.1k
542C
Idempotent functions
constructive algorithms
graphs
math
+
2000
1.3k
441D
Valera and Swaps
constructive algorithms
dsu
graphs
implementation
math
string suffix structures
+
2100
1.3k
388B
Fox and Minimal path
bitmasks
constructive algorithms
graphs
implementation
math
+
1900
2.6k
23B
Party
constructive algorithms
graphs
math
+
1600
3.9k
showing 1–56 of 56