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73 problems · filtered by 3 tags
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2249C
Double-Rift Dial
data structures
dfs and similar
dsu
implementation
two pointers
+
unrated
1k
2242C
Unstable Elements
brute force
data structures
implementation
sortings
two pointers
+
1300
10.5k
2236G
Criterion in Burlandia
binary search
bitmasks
brute force
data structures
dfs and similar
divide and conquer
implementation
trees
two pointers
+
2600
385
2234F
Vessels, Heights and Two Versions (Hard Version)
data structures
dfs and similar
dsu
greedy
implementation
two pointers
+
1900
2.3k
2233D
Goods on the Shelf
brute force
data structures
implementation
two pointers
+
1900
3.4k
2230E
Minimum Influence
binary search
data structures
greedy
implementation
math
sortings
two pointers
+
2100
1.5k
2227D
Palindromex
binary search
brute force
constructive algorithms
data structures
greedy
implementation
two pointers
+
1200
13.9k
2185D
OutOfMemoryError
data structures
implementation
math
two pointers
+
1100
21.9k
2159B
Rectangles
brute force
data structures
dp
dsu
greedy
implementation
two pointers
+
2100
3.4k
2101D
Mani and Segments
data structures
implementation
sortings
two pointers
+
2500
1.7k
2096F
Wonderful Impostors
data structures
implementation
two pointers
+
3100
496
2074D
Counting Points
brute force
data structures
geometry
implementation
two pointers
+
1400
12.4k
2063D
Game With Triangles
binary search
brute force
data structures
geometry
greedy
implementation
math
ternary search
two pointers
+
2000
5.2k
2042D
Recommendations
data structures
implementation
sortings
two pointers
+
1900
5.5k
2034B
Rakhsh's Revival
data structures
greedy
implementation
two pointers
+
1000
16.1k
2032D
Genokraken
constructive algorithms
data structures
graphs
greedy
implementation
interactive
trees
two pointers
+
1800
6.3k
2031D
Penchick and Desert Rabbit
binary search
data structures
dfs and similar
dp
dsu
greedy
implementation
two pointers
+
1700
10.1k
2030F
Orangutan Approved Subarrays
binary search
data structures
dp
greedy
implementation
two pointers
+
2400
1.2k
2027D2
The Endspeaker (Hard Version)
binary search
data structures
dp
greedy
implementation
two pointers
+
2200
1.9k
2025D
Attribute Checks
brute force
data structures
dp
implementation
math
two pointers
+
1800
8k
2018B
Speedbreaker
binary search
data structures
dp
greedy
implementation
two pointers
+
1900
5.3k
1979E
Manhattan Triangle
binary search
constructive algorithms
data structures
geometry
implementation
two pointers
+
2400
1.9k
1976D
Invertible Bracket Sequences
binary search
combinatorics
data structures
divide and conquer
implementation
two pointers
+
2000
5.9k
1974F
Cutting Game
binary search
brute force
data structures
implementation
sortings
two pointers
+
1900
4.5k
1936B
Pinball
binary search
data structures
implementation
math
two pointers
+
2000
3.6k
1932C
LR-remainders
brute force
data structures
implementation
math
two pointers
+
1400
19.3k
1918D
Blocking Elements
binary search
data structures
dp
implementation
two pointers
+
1900
6.4k
1905D
Cyclic MEX
data structures
implementation
math
two pointers
+
2000
4.8k
1870C
Colorful Table
binary search
data structures
dp
implementation
math
two pointers
+
1300
13.3k
1851G
Vlad and the Mountains
binary search
data structures
dsu
graphs
implementation
sortings
trees
two pointers
+
2000
4.2k
1833F
Ira and Flamenco
combinatorics
constructive algorithms
data structures
implementation
math
sortings
two pointers
+
1700
10.6k
1781E
Rectangle Shrinking
binary search
brute force
data structures
greedy
implementation
two pointers
+
2300
1.5k
1719C
Fighting Tournament
binary search
data structures
implementation
two pointers
+
1400
14.5k
1697C
awoo's Favorite Problem
binary search
constructive algorithms
data structures
greedy
implementation
strings
two pointers
+
1400
15.9k
1691D
Max GEQ Sum
binary search
constructive algorithms
data structures
divide and conquer
implementation
two pointers
+
1800
7.7k
1676F
Longest Strike
data structures
greedy
implementation
sortings
two pointers
+
1300
20.6k
1665E
MinimizOR
bitmasks
brute force
data structures
divide and conquer
greedy
implementation
two pointers
+
2500
1.9k
1659D
Reverse Sort Sum
constructive algorithms
data structures
greedy
implementation
math
two pointers
+
1900
4.5k
1627E
Not Escaping
data structures
dp
implementation
shortest paths
two pointers
+
2200
2.9k
1626C
Monsters And Spells
binary search
data structures
dp
greedy
implementation
math
two pointers
+
1700
12k
1598C
Delete Two Elements
data structures
dp
implementation
math
two pointers
+
1200
23.9k
1569D
Inconvenient Pairs
binary search
data structures
implementation
sortings
two pointers
+
1900
4.6k
1566D2
Seating Arrangements (hard version)
data structures
greedy
implementation
sortings
two pointers
+
1600
8.4k
1547E
Air Conditioners
data structures
dp
implementation
shortest paths
sortings
two pointers
+
1500
16.6k
1517E
Group Photo
binary search
data structures
implementation
two pointers
+
2500
1.1k
1493D
GCD of an Array
brute force
data structures
hashing
implementation
math
number theory
sortings
two pointers
+
2100
5.9k
1487E
Cheap Dinner
brute force
data structures
graphs
greedy
implementation
sortings
two pointers
+
2000
5.2k
1470E
Strange Permutation
binary search
combinatorics
data structures
dp
graphs
implementation
two pointers
+
3200
981
1450D
Rating Compression
binary search
data structures
greedy
implementation
two pointers
+
1800
5.9k
1416A
k-Amazing Numbers
binary search
data structures
implementation
two pointers
+
1500
17.4k
1408D
Searchlights
binary search
brute force
data structures
dp
implementation
sortings
two pointers
+
2000
4.7k
1381A2
Prefix Flip (Hard Version)
constructive algorithms
data structures
implementation
strings
two pointers
+
1700
14.5k
1374E2
Reading Books (hard version)
data structures
greedy
implementation
sortings
ternary search
two pointers
+
2500
1.1k
1359D
Yet Another Yet Another Task
data structures
dp
implementation
two pointers
+
2000
10.9k
1333C
Eugene and an array
binary search
data structures
implementation
two pointers
+
1700
13.7k
1266D
Decreasing Debts
constructive algorithms
data structures
graphs
greedy
implementation
math
two pointers
+
2000
3.9k
1265B
Beautiful Numbers
data structures
implementation
math
two pointers
+
1300
13.7k
1209G1
Into Blocks (easy version)
data structures
dsu
greedy
implementation
two pointers
+
2000
4.1k
1200D
White Lines
brute force
data structures
dp
implementation
two pointers
+
1900
4.4k
1196D2
RGB Substring (hard version)
data structures
dp
implementation
two pointers
+
1600
10.5k
1181D
Irrigation
binary search
data structures
implementation
sortings
trees
two pointers
+
2200
2.9k
961B
Lecture Sleep
data structures
dp
implementation
two pointers
+
1200
27.1k
899E
Segments Removal
data structures
dsu
flows
implementation
two pointers
+
2000
3.6k
848B
Rooter's Song
constructive algorithms
data structures
geometry
implementation
sortings
two pointers
+
1900
2k
830C
Bamboo Partition
brute force
data structures
implementation
math
number theory
sortings
two pointers
+
2300
1.3k
777C
Alyona and Spreadsheet
binary search
data structures
dp
greedy
implementation
two pointers
+
1600
6.9k
722F
Cyclic Cipher
chinese remainder theorem
data structures
implementation
number theory
two pointers
+
2800
639
493C
Vasya and Basketball
binary search
brute force
data structures
implementation
sortings
two pointers
+
1600
7.6k
420C
Bug in Code
data structures
graphs
implementation
two pointers
+
1900
1.4k
280B
Maximum Xor Secondary
data structures
implementation
two pointers
+
1800
5.3k
264A
Escape from Stones
constructive algorithms
data structures
implementation
two pointers
+
1200
11.9k
204E
Little Elephant and Strings
data structures
implementation
string suffix structures
two pointers
+
2800
1.7k
86D
Powerful array
data structures
implementation
math
two pointers
+
2200
17.6k
showing 1–73 of 73