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166 problems · filtered by 3 tags
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Name
✎
Rating
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2233C
Cost of a Bracket Sequence
brute force
dp
greedy
+
1400
9.3k
2228C1
Cirno and Number (Easy Version)
binary search
brute force
dp
greedy
implementation
+
1500
8k
2215D
EXPloration, EXPloitation, and Gain Some EXPerience!
bitmasks
brute force
dp
greedy
implementation
+
2800
162
2211E
Minimum Path Cover
brute force
dp
greedy
interactive
math
number theory
trees
+
2500
1k
2185H
BattleCows 2
binary search
brute force
data structures
dp
greedy
+
2500
752
2173D
Taiga's Carry Chains
bitmasks
brute force
dp
greedy
math
+
1900
3.8k
2159B
Rectangles
brute force
data structures
dp
dsu
greedy
implementation
two pointers
+
2100
3.4k
2159D1
Inverse Minimum Partition (Easy Version)
binary search
brute force
dp
geometry
greedy
math
two pointers
+
2500
1.7k
2157E
Adjusting Drones
binary search
brute force
data structures
dp
dsu
greedy
implementation
sortings
+
1900
4.6k
2157G
Isaac's Queries
bitmasks
brute force
constructive algorithms
dfs and similar
divide and conquer
dp
greedy
interactive
math
probabilities
+
2800
672
2156E
Best Time to Buy and Sell Stock
binary search
brute force
data structures
dp
games
graphs
greedy
+
2500
1k
2129B
Stay or Mirror
brute force
data structures
dp
greedy
sortings
+
1600
15.1k
2128D
Sum of LDS
brute force
combinatorics
dp
greedy
math
+
1600
12.9k
2127H
23 Rises Again
brute force
dfs and similar
dp
flows
graph matchings
graphs
greedy
implementation
probabilities
trees
+
3100
1.9k
2122D
Traffic Lights
brute force
data structures
divide and conquer
dp
graphs
greedy
shortest paths
+
2400
2.8k
2115B
Gellyfish and Camellia Japonica
brute force
constructive algorithms
dfs and similar
dp
graphs
greedy
trees
+
2100
5k
2114G
Build an Array
brute force
constructive algorithms
dp
greedy
math
number theory
+
2200
2.1k
2108C
Neo's Escape
binary search
brute force
data structures
dp
dsu
graphs
greedy
implementation
+
1500
15.1k
2107F1
Cycling (Easy Version)
binary search
brute force
dp
greedy
+
2300
1.9k
2107F2
Cycling (Hard Version)
binary search
brute force
data structures
dp
greedy
+
2800
566
2104B
Move to the End
brute force
data structures
dp
greedy
implementation
+
1000
21.3k
2091G
Gleb and Boating
brute force
constructive algorithms
data structures
dp
graphs
greedy
math
number theory
shortest paths
+
2300
1.6k
2086E
Zebra-like Numbers
bitmasks
brute force
constructive algorithms
dfs and similar
dp
greedy
math
+
2400
1.7k
2072E
Do You Love Your Hero and His Two-Hit Multi-Target Attacks?
binary search
brute force
constructive algorithms
dp
geometry
greedy
math
+
1500
12.6k
2067B
Two Large Bags
brute force
dp
greedy
sortings
+
1200
19.4k
2064C
Remove the Ends
brute force
constructive algorithms
dp
greedy
+
1300
18.1k
2064D
Eating
binary search
bitmasks
brute force
data structures
dp
greedy
trees
two pointers
+
1900
6k
2063C
Remove Exactly Two
brute force
data structures
dfs and similar
dp
graphs
greedy
sortings
trees
+
1600
15.1k
2061E
Kevin and And
bitmasks
brute force
dp
greedy
math
sortings
+
2000
4.1k
2053F
Earnest Matrix Complement
brute force
data structures
dp
greedy
implementation
math
+
2600
963
2043C
Sums on Segments
binary search
brute force
data structures
dp
greedy
math
+
1600
11.5k
2043F
Nim
bitmasks
brute force
combinatorics
dp
games
greedy
implementation
shortest paths
+
2700
918
2038K
Grid Walk
brute force
dp
greedy
math
number theory
+
2100
1.8k
2038L
Bridge Renovation
brute force
dp
greedy
math
two pointers
+
1400
8.3k
2027C
Add Zeros
brute force
data structures
dfs and similar
dp
graphs
greedy
+
1500
14.1k
2023D
Many Games
brute force
dp
greedy
math
probabilities
+
2900
612
2021E1
Digital Village (Easy Version)
brute force
data structures
dfs and similar
dp
dsu
fft
graphs
greedy
implementation
math
trees
+
2300
2k
2019A
Max Plus Size
brute force
dp
greedy
+
800
27.5k
2013E
Prefix GCD
brute force
dp
greedy
math
number theory
+
2200
4.4k
2013F1
Game in Tree (Easy Version)
binary search
brute force
data structures
dp
games
greedy
implementation
trees
+
2700
679
2008E
Alternating String
brute force
data structures
dp
greedy
implementation
strings
+
1500
13.8k
2003E1
Turtle and Inversions (Easy Version)
brute force
divide and conquer
dp
greedy
math
+
2600
902
2003E2
Turtle and Inversions (Hard Version)
brute force
data structures
divide and conquer
dp
greedy
math
two pointers
+
2700
654
2003F
Turtle and Three Sequences
brute force
data structures
dp
greedy
math
probabilities
two pointers
+
2800
838
1997F
Chips on a Line
brute force
combinatorics
dp
greedy
math
+
2700
1.3k
1992F
Valuable Cards
brute force
dp
greedy
number theory
two pointers
+
1900
7.7k
1990D
Grid Puzzle
bitmasks
brute force
dp
greedy
implementation
+
1800
7.9k
1990F
Polygonal Segments
brute force
data structures
divide and conquer
dp
greedy
two pointers
+
2800
464
1989D
Smithing Skill
brute force
data structures
dp
greedy
math
sortings
two pointers
+
1900
7.2k
1986D
Mathematical Problem
brute force
dp
greedy
implementation
math
two pointers
+
1400
18.2k
1979D
Fixing a Binary String
bitmasks
brute force
constructive algorithms
dp
greedy
hashing
strings
+
1800
8k
1978E
Computing Machine
brute force
data structures
dp
greedy
implementation
+
2000
4.7k
1977C
Nikita and LCM
brute force
data structures
dp
greedy
math
number theory
sortings
+
1900
8.2k
1975D
Paint the Tree
brute force
dfs and similar
dp
greedy
shortest paths
trees
+
1700
7.6k
1956D
Nene and the Mex Operator
bitmasks
brute force
constructive algorithms
divide and conquer
dp
greedy
implementation
math
+
2000
4.9k
1948B
Array Fix
brute force
dp
greedy
implementation
+
1100
26.5k
1941B
Rudolf and 121
brute force
dp
greedy
math
+
1000
35.3k
1935C
Messenger in MAC
binary search
brute force
constructive algorithms
data structures
dp
greedy
sortings
+
1800
9.9k
1934B
Yet Another Coin Problem
brute force
dp
greedy
math
+
1200
22.4k
1930D1
Sum over all Substrings (Easy Version)
brute force
dp
greedy
strings
+
1800
4.9k
1929E
Sasha and the Happy Tree Cutting
bitmasks
brute force
dfs and similar
dp
graphs
greedy
math
trees
+
2300
2.1k
1928E
Modular Sequence
brute force
constructive algorithms
dp
graphs
greedy
math
number theory
+
2300
2.3k
1927D
Find the Different Ones!
binary search
brute force
data structures
dp
dsu
greedy
two pointers
+
1300
35.3k
1914D
Three Activities
brute force
dp
greedy
implementation
sortings
+
1200
40.7k
1895E
Infinite Card Game
binary search
brute force
data structures
dfs and similar
dp
dsu
games
graphs
greedy
sortings
two pointers
+
2300
1.9k
1889C1
Doremy's Drying Plan (Easy Version)
brute force
data structures
dp
greedy
sortings
+
2000
4k
1884C
Medium Design
brute force
data structures
dp
greedy
sortings
+
1700
7.5k
1864D
Matrix Cascade
brute force
constructive algorithms
data structures
dp
greedy
math
+
1700
7.7k
1863E
Speedrun
brute force
dfs and similar
dp
graphs
greedy
math
sortings
two pointers
+
2100
3.3k
1859C
Another Permutation Problem
brute force
dp
greedy
math
+
1200
18.9k
1858B
The Walkway
brute force
dp
greedy
math
number theory
+
1500
13.2k
1858D
Trees and Segments
brute force
data structures
dp
greedy
two pointers
+
2200
3.3k
1854E
Game Bundles
brute force
constructive algorithms
dp
greedy
math
+
3000
575
1847C
Vampiric Powers, anyone?
bitmasks
brute force
dp
greedy
+
1400
15k
1845D
Rating System
binary search
brute force
data structures
dp
dsu
greedy
math
two pointers
+
1800
9.2k
1841C
Ranom Numbers
brute force
dp
greedy
math
strings
+
1800
9.2k
1826D
Running Miles
brute force
dp
greedy
+
1700
15.8k
1821E
Rearrange Brackets
brute force
dp
greedy
sortings
strings
+
2100
2.8k
1808C
Unlucky Numbers
brute force
dp
greedy
implementation
+
1900
4.4k
1807G1
Subsequence Addition (Easy Version)
brute force
data structures
dp
greedy
implementation
sortings
+
1100
22.7k
1804D
Accommodation
brute force
dp
greedy
implementation
+
2000
5.3k
1799F
Halve or Subtract
binary search
brute force
dp
greedy
sortings
+
2700
1.1k
1789F
Serval and Brain Power
bitmasks
brute force
dp
greedy
implementation
strings
+
2700
1k
1769C1
Подкрутка I
*special
brute force
dp
greedy
+
1200
1.1k
1748C
Zero-Sum Prefixes
brute force
data structures
dp
greedy
implementation
+
1600
13.3k
1743D
Problem with Random Tests
brute force
dp
greedy
probabilities
+
1700
8.5k
1737D
Ela and the Wiring Wizard
brute force
dp
graphs
greedy
implementation
shortest paths
+
2200
2.1k
1732B
Ugu
brute force
dp
greedy
implementation
+
900
17.5k
1714D
Color with Occurrences
brute force
data structures
dp
greedy
strings
+
1600
10.5k
1710C
XOR Triangle
bitmasks
brute force
constructive algorithms
dp
greedy
math
+
2500
1.7k
1706D2
Chopping Carrots (Hard Version)
brute force
constructive algorithms
data structures
dp
greedy
math
number theory
two pointers
+
2400
2k
1703G
Good Key, Bad Key
bitmasks
brute force
dp
greedy
math
+
1600
13k
1701E
Text Editor
brute force
dp
greedy
strings
+
2500
1.4k
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
1695C
Zero Path
brute force
data structures
dp
graphs
greedy
shortest paths
+
1700
14.5k
1695D1
Tree Queries (Easy Version)
brute force
constructive algorithms
dfs and similar
dp
greedy
trees
+
2200
2.5k
1693D
Decinc Dividing
brute force
data structures
divide and conquer
dp
greedy
+
2800
1.2k
1661B
Getting Zero
bitmasks
brute force
dfs and similar
dp
graphs
greedy
shortest paths
+
1300
21.1k
1659C
Line Empire
binary search
brute force
dp
greedy
implementation
math
+
1500
15.8k
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