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combine-tags-by-or
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2-sat
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bitmasks
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chinese remainder theorem
combinatorics
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dfs and similar
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Name
208E
Blood Cousins
binary search
,
data structures
,
dfs and similar
,
trees
2100
x6082
760B
Frodo and pillows
binary search
,
greedy
1500
x6073
1118D2
Coffee and Coursework (Hard Version)
binary search
,
greedy
1700
x6043
460C
Present
binary search
,
data structures
,
greedy
1700
x6041
1307D
Cow and Fields
binary search
,
data structures
,
dfs and similar
,
graphs
,
greedy
,
shortest paths
,
sortings
1900
x6025
1934C
Find a Mine
binary search
,
constructive algorithms
,
geometry
,
greedy
,
interactive
,
math
1700
x6019
1560F1
Nearest Beautiful Number (easy version)
binary search
,
bitmasks
,
brute force
,
constructive algorithms
,
dfs and similar
,
greedy
1900
x5909
1156C
Match Points
binary search
,
greedy
,
sortings
,
ternary search
,
two pointers
2000
x5894
1923D
Slimes
binary search
,
constructive algorithms
,
data structures
,
greedy
,
two pointers
1800
x5874
1792D
Fixed Prefix Permutations
binary search
,
bitmasks
,
data structures
,
hashing
,
math
,
sortings
1700
x5874
1436D
Bandit in a City
binary search
,
dfs and similar
,
graphs
,
greedy
,
trees
1900
x5845
1700D
River Locks
binary search
,
dp
,
greedy
,
math
1900
x5831
1342D
Multiple Testcases
binary search
,
constructive algorithms
,
data structures
,
greedy
,
sortings
,
two pointers
1900
x5831
1354C2
Not So Simple Polygon Embedding
binary search
,
brute force
,
geometry
,
math
2000
x5809
1041D
Glider
binary search
,
data structures
,
two pointers
1700
x5806
439D
Devu and his Brother
binary search
,
sortings
,
ternary search
,
two pointers
1700
x5794
538C
Tourist's Notes
binary search
,
brute force
,
greedy
,
implementation
,
math
1600
x5760
1793D
Moscow Gorillas
binary search
,
dp
,
greedy
,
implementation
,
math
,
two pointers
1800
x5756
776C
Molly's Chemicals
binary search
,
brute force
,
data structures
,
implementation
,
math
1800
x5743
1238D
AB-string
binary search
,
combinatorics
,
dp
,
strings
1900
x5730
573B
Bear and Blocks
binary search
,
data structures
,
dp
,
math
1600
x5697
1862F
Magic Will Save the World
binary search
,
bitmasks
,
brute force
,
dp
1800
x5660
1251D
Salary Changing
binary search
,
greedy
,
sortings
1900
x5621
1725G
Garage
binary search
,
geometry
,
math
1500
x5599
237C
Primes on Interval
binary search
,
number theory
,
two pointers
1600
x5567
1732C1
Sheikh (Easy version)
binary search
,
bitmasks
,
greedy
,
two pointers
1800
x5562
1413C
Perform Easily
binary search
,
brute force
,
dp
,
implementation
,
sortings
,
two pointers
1900
x5534
204A
Little Elephant and Interval
binary search
,
combinatorics
,
dp
1500
x5528
1630B
Range and Partition
binary search
,
constructive algorithms
,
data structures
,
greedy
,
two pointers
1800
x5499
1547F
Array Stabilization (GCD version)
binary search
,
brute force
,
data structures
,
divide and conquer
,
number theory
,
two pointers
1900
x5498
1701D
Permutation Restoration
binary search
,
data structures
,
greedy
,
math
,
sortings
,
two pointers
1900
x5482
1691D
Max GEQ Sum
binary search
,
constructive algorithms
,
data structures
,
divide and conquer
,
implementation
,
two pointers
1800
x5476
1490G
Old Floppy Drive
binary search
,
data structures
,
math
1900
x5471
1379C
Choosing flowers
binary search
,
brute force
,
data structures
,
dfs and similar
,
dp
,
greedy
,
sortings
,
two pointers
2000
x5415
732D
Exams
binary search
,
greedy
,
sortings
1700
x5403
1450D
Rating Compression
binary search
,
data structures
,
greedy
,
implementation
,
two pointers
1800
x5306
1066D
Boxes Packing
binary search
,
implementation
1800
x5296
734C
Anton and Making Potions
binary search
,
dp
,
greedy
,
two pointers
1600
x5287
1494C
1D Sokoban
binary search
,
dp
,
greedy
,
implementation
,
two pointers
1900
x5230
1776L
Controllers
binary search
,
math
1500
x5187
1696D
Permutation Graph
binary search
,
constructive algorithms
,
data structures
,
divide and conquer
,
greedy
,
shortest paths
1900
x5171
1896D
Ones and Twos
binary search
,
data structures
,
divide and conquer
,
math
,
two pointers
1700
x5168
1941F
Rudolf and Imbalance
binary search
,
greedy
,
sortings
,
two pointers
1800
x5160
1184B1
The Doctor Meets Vader (Easy)
binary search
,
sortings
1400
x5105
1920D
Array Repetition
binary search
,
brute force
,
dsu
,
implementation
,
math
1900
x5084
1010B
Rocket
binary search
,
interactive
1800
x5071
924B
Three-level Laser
binary search
,
greedy
,
two pointers
1600
x5062
1903D1
Maximum And Queries (easy version)
binary search
,
bitmasks
,
brute force
,
greedy
1700
x5052
204B
Little Elephant and Cards
binary search
,
data structures
1500
x5018
1537E2
Erase and Extend (Hard Version)
binary search
,
data structures
,
greedy
,
hashing
,
string suffix structures
,
strings
,
two pointers
2200
x4980
1670D
Very Suspicious
binary search
,
brute force
,
geometry
,
greedy
,
implementation
,
math
1700
x4953
1371E1
Asterism (Easy Version)
binary search
,
brute force
,
combinatorics
,
math
,
number theory
,
sortings
1900
x4951
1290B
Irreducible Anagrams
binary search
,
constructive algorithms
,
data structures
,
strings
,
two pointers
1800
x4922
777D
Cloud of Hashtags
binary search
,
greedy
,
implementation
,
strings
1800
x4911
689C
Mike and Chocolate Thieves
binary search
,
combinatorics
,
math
1700
x4874
1883G2
Dances (Hard Version)
binary search
,
greedy
,
sortings
,
two pointers
1900
x4867
1739D
Reset K Edges
binary search
,
data structures
,
dfs and similar
,
graphs
,
greedy
,
trees
1900
x4866
1153D
Serval and Rooted Tree
binary search
,
dfs and similar
,
dp
,
greedy
,
trees
1900
x4834
359D
Pair of Numbers
binary search
,
brute force
,
data structures
,
math
,
two pointers
2000
x4825
1651D
Nearest Excluded Points
binary search
,
data structures
,
dfs and similar
,
graphs
,
shortest paths
1900
x4819
1244E
Minimizing Difference
binary search
,
constructive algorithms
,
greedy
,
sortings
,
ternary search
,
two pointers
2000
x4812
1060C
Maximum Subrectangle
binary search
,
implementation
,
two pointers
1600
x4802
337C
Quiz
binary search
,
greedy
,
math
,
matrices
,
number theory
1600
x4770
1821D
Black Cells
binary search
,
brute force
,
greedy
,
math
1900
x4753
1355E
Restorer Distance
binary search
,
greedy
,
math
,
sortings
,
ternary search
2100
x4718
479D
Long Jumps
binary search
,
greedy
,
implementation
1700
x4706
1657D
For Gamers. By Gamers.
binary search
,
brute force
,
greedy
,
math
,
sortings
2000
x4704
161A
Dress'em in Vests!
binary search
,
brute force
,
greedy
,
two pointers
1300
x4677
1423K
Lonely Numbers
binary search
,
math
,
number theory
,
two pointers
1600
x4660
1208D
Restore Permutation
binary search
,
data structures
,
greedy
,
implementation
1900
x4651
847B
Preparing for Merge Sort
binary search
,
data structures
1600
x4648
567D
One-Dimensional Battle Ships
binary search
,
data structures
,
greedy
,
sortings
1700
x4646
1780D
Bit Guessing Game
binary search
,
bitmasks
,
constructive algorithms
,
interactive
1800
x4643
1370E
Binary Subsequence Rotation
binary search
,
constructive algorithms
,
data structures
,
greedy
2100
x4610
1679D
Toss a Coin to Your Graph...
binary search
,
dfs and similar
,
dp
,
graphs
1900
x4569
939C
Convenient For Everybody
binary search
,
two pointers
1600
x4564
1073C
Vasya and Robot
binary search
,
two pointers
1800
x4549
822C
Hacker, pack your bags!
binary search
,
greedy
,
implementation
,
sortings
1600
x4529
1119D
Frets On Fire
binary search
,
sortings
1800
x4500
16C
Monitor
binary search
,
number theory
1800
x4499
913D
Too Easy Problems
binary search
,
brute force
,
data structures
,
greedy
,
sortings
1800
x4493
833B
The Bakery
binary search
,
data structures
,
divide and conquer
,
dp
,
two pointers
2200
x4493
1747D
Yet Another Problem
binary search
,
bitmasks
,
constructive algorithms
,
data structures
1900
x4483
1791G2
Teleporters (Hard Version)
binary search
,
greedy
,
sortings
1900
x4464
1632D
New Year Concert
binary search
,
data structures
,
greedy
,
math
,
number theory
,
two pointers
2000
x4461
1493C
K-beautiful Strings
binary search
,
brute force
,
constructive algorithms
,
greedy
,
strings
2000
x4458
1468D
Firecrackers
binary search
,
sortings
1700
x4458
229B
Planets
binary search
,
data structures
,
graphs
,
shortest paths
1700
x4458
739B
Alyona and a tree
binary search
,
data structures
,
dfs and similar
,
graphs
,
trees
1900
x4422
773A
Success Rate
binary search
,
math
1700
x4366
1538G
Gift Set
binary search
,
greedy
,
math
,
ternary search
2100
x4358
1574D
The Strongest Build
binary search
,
brute force
,
data structures
,
dfs and similar
,
graphs
,
greedy
,
hashing
,
implementation
2000
x4354
936A
Save Energy!
binary search
,
implementation
,
math
1700
x4316
1569D
Inconvenient Pairs
binary search
,
data structures
,
implementation
,
sortings
,
two pointers
1900
x4284
1360H
Binary Median
binary search
,
bitmasks
,
brute force
,
constructive algorithms
2100
x4283
1697D
Guess The String
binary search
,
constructive algorithms
,
interactive
1900
x4266
1712D
Empty Graph
binary search
,
constructive algorithms
,
data structures
,
greedy
,
shortest paths
2000
x4264
1918D
Blocking Elements
binary search
,
data structures
,
dp
,
implementation
,
two pointers
1900
x4245
1463D
Pairs
binary search
,
constructive algorithms
,
greedy
,
two pointers
1900
x4239
1759G
Restore the Permutation
binary search
,
constructive algorithms
,
data structures
,
greedy
,
math
1900
x4223
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