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Problemset
49 problems · filtered by 3 tags
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Name
✎
Rating
↕
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2241E
Fair and Square
combinatorics
dp
graphs
math
number theory
trees
+
1600
5.8k
2236F2
Elections in Saransk (hard version)
combinatorics
dp
math
number theory
+
2200
958
2206I
Growth Factor
combinatorics
dp
math
number theory
+
2900
226
2189D1
Little String (Easy Version)
combinatorics
dp
greedy
math
number theory
+
1900
4.2k
2189D2
Little String (Hard Version)
combinatorics
dp
greedy
math
number theory
+
2200
2.1k
2176F
Omega Numbers
bitmasks
combinatorics
dp
math
number theory
+
2400
1.6k
2135E2
Beyond the Palindrome (Hard Version)
combinatorics
dp
math
number theory
+
3500
188
2112E
Tree Colorings
combinatorics
dfs and similar
dp
graphs
math
number theory
trees
+
2200
3.5k
2060F
Multiplicative Arrays
combinatorics
dp
number theory
+
2200
2.7k
2040F
Number of Cubes
combinatorics
dp
math
number theory
+
2700
469
2039F1
Shohag Loves Counting (Easy Version)
combinatorics
dp
math
number theory
+
2800
527
2037G
Natlan Exploring
bitmasks
combinatorics
data structures
dp
math
number theory
+
2000
3.9k
1957E
Carousel of Combinations
brute force
combinatorics
dp
math
number theory
+
2400
1.7k
1946E
Girl Permutation
combinatorics
dp
math
number theory
+
2200
3.2k
1917D
Yet Another Inversions Problem
combinatorics
data structures
dp
implementation
math
number theory
+
2300
2.1k
1794D
Counting Factorizations
combinatorics
divide and conquer
dp
math
number theory
+
1900
4.6k
1780F
Three Chairs
bitmasks
brute force
combinatorics
data structures
dp
number theory
sortings
+
2300
2k
1770F
Koxia and Sequence
bitmasks
combinatorics
dp
math
number theory
+
3100
1k
1763D
Valid Bitonic Permutations
combinatorics
dp
implementation
math
number theory
+
2200
2.4k
1749D
Counting Arrays
combinatorics
dp
math
number theory
+
1900
6.4k
1725E
Electrical Efficiency
combinatorics
data structures
dp
math
number theory
trees
+
2500
640
1716F
Bags with Balls
combinatorics
dp
math
number theory
+
2500
1.5k
1626F
A Random Code Problem
combinatorics
dp
math
number theory
probabilities
+
2800
922
1610D
Not Quite Lee
combinatorics
dp
math
number theory
+
2000
3.1k
1559E
Mocha and Stars
combinatorics
dp
fft
math
number theory
+
2200
2.8k
1371E2
Asterism (Hard Version)
binary search
combinatorics
dp
math
number theory
sortings
+
2300
2.5k
1278F
Cards
combinatorics
dp
math
number theory
probabilities
+
2600
2.7k
1204E
Natasha, Sasha and the Prefix Sums
combinatorics
dp
math
number theory
+
2300
2.2k
1194F
Crossword Expert
combinatorics
dp
number theory
probabilities
two pointers
+
2400
1.3k
1174E
Ehab and the Expected GCD Problem
combinatorics
dp
math
number theory
+
2500
1.8k
1043F
Make It One
bitmasks
combinatorics
dp
math
number theory
shortest paths
+
2500
3.1k
1034C
Region Separation
combinatorics
dp
number theory
trees
+
2700
1.1k
900D
Unusual Sequences
bitmasks
combinatorics
dp
math
number theory
+
2000
3.9k
893E
Counting Arrays
combinatorics
dp
math
number theory
+
2000
4.3k
839D
Winter is here
combinatorics
dp
math
number theory
+
2200
3.7k
804F
Fake bullions
combinatorics
dfs and similar
dp
graphs
number theory
+
3400
221
785D
Anton and School - 2
combinatorics
dp
math
number theory
+
2300
3.9k
773F
Test Data Generation
combinatorics
divide and conquer
dp
fft
math
number theory
+
3400
281
757E
Bash Plays with Functions
brute force
combinatorics
dp
number theory
+
2500
1.6k
755G
PolandBall and Many Other Balls
combinatorics
divide and conquer
dp
fft
math
number theory
+
3200
1.1k
659G
Fence Divercity
combinatorics
dp
number theory
+
2300
1.3k
575H
Bots
combinatorics
dp
math
number theory
+
1800
1.9k
559C
Gerald and Giant Chess
combinatorics
dp
math
number theory
+
2200
8.3k
547C
Mike and Foam
bitmasks
combinatorics
dp
math
number theory
+
2300
3.5k
520E
Pluses everywhere
combinatorics
dp
math
number theory
+
2200
2.1k
414B
Mashmokh and ACM
combinatorics
dp
number theory
+
1400
30.4k
401D
Roman and Numbers
bitmasks
brute force
combinatorics
dp
number theory
+
2000
4.7k
235E
Number Challenge
combinatorics
dp
implementation
math
number theory
+
2600
963
215E
Periodical Numbers
combinatorics
dp
number theory
+
2100
698
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