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688 problems · filtered by 2 tags
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Name
✎
Rating
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1783D
Different Arrays
brute force
dp
implementation
+
2000
5.4k
1781C
Equal Frequencies
brute force
constructive algorithms
greedy
implementation
sortings
strings
+
1600
11k
1781E
Rectangle Shrinking
binary search
brute force
data structures
greedy
implementation
two pointers
+
2300
1.5k
1775A1
Gardener and the Capybaras (easy version)
brute force
constructive algorithms
implementation
+
800
20.5k
1774D
Same Count One
brute force
constructive algorithms
greedy
implementation
two pointers
+
1600
9.4k
1774F1
Magician and Pigs (Easy Version)
brute force
data structures
implementation
+
2400
1.3k
1774F2
Magician and Pigs (Hard Version)
binary search
brute force
data structures
implementation
+
2700
921
1773I
Interactive Factorial Guessing
brute force
games
implementation
interactive
+
2500
585
1772B
Matrix Rotation
brute force
implementation
+
800
33.4k
1771E
Hossam and a Letter
brute force
dp
implementation
two pointers
+
2500
852
1769B1
Копирование файлов I
*special
brute force
implementation
math
+
1000
1.6k
1766A
Extremely Round
brute force
implementation
+
800
49.9k
1765L
Project Manager
brute force
data structures
implementation
+
2400
693
1763B
Incinerate
binary search
brute force
data structures
implementation
math
sortings
+
1200
16.6k
1750B
Maximum Substring
brute force
greedy
implementation
+
800
16.9k
1748B
Diverse Substrings
brute force
implementation
strings
+
1400
17k
1748C
Zero-Sum Prefixes
brute force
data structures
dp
greedy
implementation
+
1600
13.3k
1743A
Password
brute force
combinatorics
implementation
math
+
800
29.9k
1737D
Ela and the Wiring Wizard
brute force
dp
graphs
greedy
implementation
shortest paths
+
2200
2.1k
1732A
Bestie
brute force
combinatorics
constructive algorithms
implementation
math
number theory
+
1000
17.8k
1732B
Ugu
brute force
dp
greedy
implementation
+
900
17.5k
1732C2
Sheikh (Hard Version)
binary search
bitmasks
brute force
greedy
implementation
two pointers
+
2100
3.2k
1732D1
Balance (Easy version)
brute force
data structures
implementation
number theory
+
1500
10k
1728A
Colored Balls: Revisited
brute force
greedy
implementation
sortings
+
800
25.5k
1722E
Counting Rectangles
brute force
data structures
dp
implementation
+
1600
13.7k
1710B
Rain
binary search
brute force
data structures
geometry
greedy
implementation
math
+
2100
2.8k
1709A
Three Doors
brute force
greedy
implementation
math
+
800
31.8k
1707B
Difference Array
brute force
data structures
implementation
sortings
+
1900
6.5k
1705C
Mark and His Unfinished Essay
brute force
implementation
+
1400
14.7k
1704B
Luke is a Foodie
brute force
greedy
implementation
+
1000
32k
1704E
Count Seconds
brute force
constructive algorithms
dp
graphs
implementation
math
+
2200
2.7k
1703A
YES or YES?
brute force
implementation
strings
+
800
100.3k
1703C
Cypher
brute force
implementation
strings
+
800
41.4k
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
1692D
The Clock
brute force
implementation
+
1100
22.1k
1689A
Lex String
brute force
greedy
implementation
sortings
two pointers
+
800
17.8k
1687D
Cute number
binary search
brute force
data structures
dsu
implementation
math
+
2900
775
1684C
Column Swapping
brute force
constructive algorithms
greedy
implementation
sortings
+
1400
13.3k
1676C
Most Similar Words
brute force
greedy
implementation
math
strings
+
800
35.4k
1676D
X-Sum
brute force
greedy
implementation
+
1000
29.8k
1670B
Dorms War
brute force
implementation
strings
+
1100
13.5k
1670D
Very Suspicious
binary search
brute force
geometry
greedy
implementation
math
+
1700
5.7k
1665E
MinimizOR
bitmasks
brute force
data structures
divide and conquer
greedy
implementation
two pointers
+
2500
1.9k
1662A
Organizing SWERC
brute force
implementation
+
unrated
4.9k
1662I
Ice Cream Shop
brute force
implementation
sortings
+
unrated
2.5k
1662O
Circular Maze
brute force
dfs and similar
graphs
implementation
+
unrated
1.6k
1660D
Maximum Product Strikes Back
brute force
implementation
math
two pointers
+
1600
12k
1660E
Matrix and Shifts
brute force
constructive algorithms
greedy
implementation
+
1600
8.2k
1660F1
Promising String (easy version)
brute force
implementation
math
strings
+
1700
8k
1659C
Line Empire
binary search
brute force
dp
greedy
implementation
math
+
1500
15.8k
1654A
Maximum Cake Tastiness
brute force
greedy
implementation
sortings
+
800
19.4k
1651C
Fault-tolerant Network
brute force
data structures
implementation
+
1500
11.6k
1650D
Twist the Permutation
brute force
constructive algorithms
implementation
math
+
1300
15.3k
1647B
Madoka and the Elegant Gift
brute force
constructive algorithms
graphs
implementation
+
1200
17.2k
1644B
Anti-Fibonacci Permutation
brute force
constructive algorithms
implementation
+
800
21.4k
1644C
Increase Subarray Sums
brute force
dp
greedy
implementation
+
1400
15.1k
1644E
Expand the Path
brute force
combinatorics
data structures
implementation
math
+
1900
3.5k
1638E
Colorful Operations
brute force
data structures
implementation
+
2400
2.5k
1637E
Best Pair
binary search
brute force
implementation
+
2100
3.8k
1634F
Fibonacci Additions
brute force
data structures
hashing
implementation
math
+
2700
2k
1624E
Masha-forgetful
brute force
constructive algorithms
dp
hashing
implementation
strings
+
2000
4.7k
1623A
Robot Cleaner
brute force
implementation
math
+
800
20.8k
1623B
Game on Ranges
brute force
dfs and similar
implementation
sortings
+
1100
14.7k
1620C
BA-String
brute force
dp
greedy
implementation
math
+
1800
7.3k
1616C
Representative Edges
brute force
geometry
implementation
math
+
1500
13.3k
1610E
AmShZ and G.O.A.T.
binary search
brute force
greedy
implementation
math
+
2300
2.1k
1607F
Robot on the Board 2
brute force
dfs and similar
graphs
implementation
+
2300
2.2k
1606D
Red-Blue Matrix
brute force
constructive algorithms
implementation
sortings
+
2400
1.6k
1605C
Dominant Character
brute force
greedy
implementation
strings
+
1400
19.1k
1598A
Computer Game
brute force
dfs and similar
dp
implementation
+
800
25.9k
1598B
Groups
brute force
implementation
+
1000
17k
1598E
Staircases
brute force
combinatorics
data structures
dfs and similar
dp
implementation
math
+
2100
2.5k
1594E2
Rubik's Cube Coloring (hard version)
brute force
dp
implementation
math
trees
+
2300
1.7k
1593E
Gardener and Tree
brute force
data structures
dfs and similar
greedy
implementation
trees
+
1600
15.1k
1580A
Portal
brute force
data structures
dp
greedy
implementation
+
1700
3.9k
1580C
Train Maintenance
brute force
data structures
implementation
+
2200
2.3k
1578K
Kingdom of Islands
brute force
graphs
implementation
+
2800
435
1575J
Jeopardy of Dropped Balls
binary search
brute force
dsu
implementation
+
1500
4.3k
1574D
The Strongest Build
binary search
brute force
data structures
dfs and similar
graphs
greedy
hashing
implementation
+
2000
4.9k
1572A
Book
binary search
brute force
data structures
dp
graphs
implementation
sortings
+
1800
10.6k
1571D
Sweepstake
*special
brute force
constructive algorithms
implementation
math
+
1800
373
1569E
Playoff Restoration
bitmasks
brute force
hashing
implementation
meet-in-the-middle
+
2600
901
1562B
Scenes From a Memory
brute force
constructive algorithms
implementation
math
number theory
+
1000
20.7k
1561A
Simply Strange Sort
brute force
implementation
sortings
+
800
17.2k
1556C
Compressed Bracket Sequence
brute force
implementation
+
1800
6.3k
1555C
Coin Rows
brute force
constructive algorithms
dp
implementation
+
1300
24.4k
1553B
Reverse String
brute force
dp
hashing
implementation
strings
+
1300
15.6k
1550C
Manhattan Subarrays
brute force
geometry
greedy
implementation
+
1700
10.9k
1543C
Need for Pink Slips
bitmasks
brute force
dfs and similar
implementation
math
probabilities
+
1900
5.7k
1541B
Pleasant Pairs
brute force
implementation
math
number theory
+
1200
40.3k
1537E1
Erase and Extend (Easy Version)
binary search
brute force
dp
greedy
hashing
implementation
string suffix structures
strings
two pointers
+
1600
16.9k
1535A
Fair Playoff
brute force
implementation
+
800
58.1k
1535F
String Distance
binary search
brute force
data structures
hashing
implementation
strings
+
3000
701
1534A
Colour the Flag
brute force
implementation
+
800
13.3k
1523C
Compression and Expansion
brute force
data structures
greedy
implementation
trees
+
1600
9.2k
1520A
Do Not Be Distracted!
brute force
implementation
+
800
59.3k
1520G
To Go Or Not To Go?
brute force
dfs and similar
graphs
greedy
implementation
shortest paths
+
2200
4.4k
1519D
Maximum Sum of Products
brute force
dp
implementation
math
two pointers
+
1600
17.9k
1512A
Spy Detected!
brute force
implementation
+
800
82.4k
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