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62 problems · filtered by 3 tags
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Name
✎
Rating
↕
Solved
↕
2245F
Familiar?
brute force
combinatorics
dp
+
unrated
244
2222H
Counting Sort?
brute force
combinatorics
dp
+
3500
147
2183F
Jumping Man
brute force
combinatorics
dfs and similar
dp
trees
+
2500
1.2k
2182C
Production of Snowmen
brute force
combinatorics
dp
+
1200
16.3k
2182F1
Christmas Reindeer (easy version)
bitmasks
brute force
combinatorics
dp
math
+
2300
1.3k
2163C
Monopati
brute force
combinatorics
dp
math
two pointers
+
1500
9.6k
2146F
Bubble Sort
brute force
combinatorics
dp
+
2900
332
2129D
Permutation Blackhole
brute force
combinatorics
dp
implementation
math
+
2600
2.5k
2128D
Sum of LDS
brute force
combinatorics
dp
greedy
math
+
1600
12.9k
2127F
Hamed and AghaBalaSar
brute force
combinatorics
dp
math
probabilities
+
2800
2.1k
2125E
Sets of Complementary Sums
brute force
combinatorics
dp
math
two pointers
+
2500
1.4k
2086D
Even String
brute force
combinatorics
dp
math
strings
+
1700
8.6k
2056D
Unique Median
binary search
brute force
combinatorics
data structures
divide and conquer
dp
+
2200
3.7k
2056F1
Xor of Median (Easy Version)
bitmasks
brute force
combinatorics
dp
math
+
2700
455
2056F2
Xor of Median (Hard Version)
bitmasks
brute force
combinatorics
dp
math
+
3000
362
2048G
Kevin and Matrices
brute force
combinatorics
dp
math
+
2800
761
2043F
Nim
bitmasks
brute force
combinatorics
dp
games
greedy
implementation
shortest paths
+
2700
918
2029H
Message Spread
bitmasks
brute force
combinatorics
dp
+
3500
111
1997F
Chips on a Line
brute force
combinatorics
dp
greedy
math
+
2700
1.3k
1982E
Number of k-good subarrays
bitmasks
brute force
combinatorics
divide and conquer
dp
math
meet-in-the-middle
+
2300
1.9k
1975F
Set
bitmasks
brute force
combinatorics
dfs and similar
divide and conquer
dp
math
+
2600
1.1k
1967C
Fenwick Tree
bitmasks
brute force
combinatorics
data structures
dp
math
trees
+
2300
2.3k
1957E
Carousel of Combinations
brute force
combinatorics
dp
math
number theory
+
2400
1.7k
1943D1
Counting Is Fun (Easy Version)
brute force
combinatorics
dp
math
+
2400
2k
1917B
Erase First or Second Letter
brute force
combinatorics
data structures
dp
strings
+
1100
38.7k
1916H1
Matrix Rank (Easy Version)
brute force
combinatorics
dp
math
matrices
+
2700
751
1914G1
Light Bulbs (Easy Version)
brute force
combinatorics
dfs and similar
dp
dsu
graphs
math
trees
+
2100
2.5k
1909F1
Small Permutation Problem (Easy Version)
brute force
combinatorics
dp
math
+
2200
2.3k
1866M
Mighty Rock Tower
brute force
combinatorics
dp
math
probabilities
+
2400
1k
1832E
Combinatorics Problem
brute force
combinatorics
dp
+
2200
2.6k
1808E3
Minibuses on Venus (hard version)
brute force
combinatorics
dp
math
+
2800
622
1792F2
Graph Coloring (hard version)
brute force
combinatorics
divide and conquer
dp
fft
graphs
+
2900
558
1784E
Infinite Game
brute force
combinatorics
dp
games
probabilities
+
3100
485
1780F
Three Chairs
bitmasks
brute force
combinatorics
data structures
dp
number theory
sortings
+
2300
2k
1774G
Segment Covering
brute force
combinatorics
constructive algorithms
data structures
dp
trees
+
3200
692
1731F
Function Sum
brute force
combinatorics
dp
fft
math
+
2500
924
1728G
Illumination
binary search
bitmasks
brute force
combinatorics
dp
math
two pointers
+
2700
669
1697E
Coloring
brute force
combinatorics
constructive algorithms
dp
geometry
graphs
greedy
implementation
math
+
2400
1.5k
1696H
Maximum Product?
brute force
combinatorics
dp
greedy
implementation
math
two pointers
+
3500
215
1671F
Permutation Counting
brute force
combinatorics
dp
fft
math
+
2700
514
1598E
Staircases
brute force
combinatorics
data structures
dfs and similar
dp
implementation
math
+
2100
2.5k
1580B
Mathematics Curriculum
brute force
combinatorics
dp
trees
+
2600
1.4k
1551F
Equidistant Vertices
brute force
combinatorics
dfs and similar
dp
trees
+
2200
2.2k
1540B
Tree Array
brute force
combinatorics
dp
graphs
math
probabilities
trees
+
2300
3.1k
1400G
Mercenaries
bitmasks
brute force
combinatorics
dp
dsu
math
two pointers
+
2600
1.2k
1366E
Two Arrays
binary search
brute force
combinatorics
constructive algorithms
dp
two pointers
+
2100
4.7k
1245F
Daniel and Spring Cleaning
bitmasks
brute force
combinatorics
dp
+
2300
2.3k
1221G
Graph And Numbers
bitmasks
brute force
combinatorics
dp
meet-in-the-middle
+
2900
988
1181C
Flag
brute force
combinatorics
dp
implementation
+
1900
3.4k
1109D
Sasha and Interesting Fact from Graph Theory
brute force
combinatorics
dp
math
trees
+
2400
1.5k
997B
Roman Digits
brute force
combinatorics
dp
greedy
math
+
2000
3.2k
914C
Travelling Salesman and Special Numbers
brute force
combinatorics
dp
+
1800
4.3k
757E
Bash Plays with Functions
brute force
combinatorics
dp
number theory
+
2500
1.6k
756D
Bacterial Melee
brute force
combinatorics
dp
string suffix structures
+
2400
1.2k
750G
New Year and Binary Tree Paths
bitmasks
brute force
combinatorics
dp
+
3200
617
747F
Igor and Interesting Numbers
brute force
combinatorics
dp
math
+
2500
521
685A
Robbers' watch
brute force
combinatorics
dp
math
+
1700
4.5k
626D
Jerry's Protest
brute force
combinatorics
dp
probabilities
+
1800
3.2k
518F
Pasha and Pipe
binary search
brute force
combinatorics
dp
implementation
+
2300
442
476B
Dreamoon and WiFi
bitmasks
brute force
combinatorics
dp
math
probabilities
+
1300
38k
401D
Roman and Numbers
bitmasks
brute force
combinatorics
dp
number theory
+
2000
4.7k
258B
Little Elephant and Elections
brute force
combinatorics
dp
+
1900
1.6k
showing 1–62 of 62