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combine-tags-by-or
*combine tags by OR
2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
constructive algorithms
data structures
dfs and similar
divide and conquer
dp
dsu
expression parsing
fft
flows
games
geometry
graph matchings
graphs
greedy
hashing
implementation
interactive
math
matrices
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number theory
probabilities
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strings
ternary search
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Problems
#
Name
1847A
The Man who became a God
greedy
,
sortings
800
x21675
1592A
Gamer Hemose
binary search
,
greedy
,
math
,
sortings
800
x21610
1201C
Maximum Median
binary search
,
greedy
,
math
,
sortings
1400
x21562
1133C
Balanced Team
sortings
,
two pointers
1200
x21332
1470A
Strange Birthday Party
binary search
,
dp
,
greedy
,
sortings
,
two pointers
1300
x21258
1539C
Stable Groups
greedy
,
sortings
1200
x21240
1294B
Collecting Packages
implementation
,
sortings
1200
x21215
1613B
Absent Remainder
greedy
,
implementation
,
sortings
1000
x21191
1646B
Quality vs Quantity
brute force
,
constructive algorithms
,
greedy
,
sortings
,
two pointers
800
x20868
1720B
Interesting Sum
brute force
,
data structures
,
greedy
,
math
,
sortings
800
x20761
1734A
Select Three Sticks
brute force
,
greedy
,
sortings
800
x20757
1713B
Optimal Reduction
constructive algorithms
,
sortings
1000
x20729
1733A
Consecutive Sum
greedy
,
sortings
800
x20661
1622B
Berland Music
data structures
,
greedy
,
math
,
sortings
1000
x20540
1791G1
Teleporters (Easy Version)
greedy
,
sortings
1100
x20539
1638B
Odd Swap Sort
data structures
,
math
,
sortings
1100
x20416
1529B
Sifid and Strange Subsequences
greedy
,
math
,
sortings
1100
x20341
1165B
Polycarp Training
data structures
,
greedy
,
sortings
1000
x20341
1744D
Divisibility by 2^n
greedy
,
math
,
sortings
1200
x20300
1272A
Three Friends
brute force
,
greedy
,
math
,
sortings
900
x20045
1921D
Very Different Array
data structures
,
greedy
,
sortings
,
two pointers
1100
x19978
1380C
Create The Teams
brute force
,
dp
,
greedy
,
implementation
,
sortings
1400
x19893
1836A
Destroyer
implementation
,
sortings
800
x19793
1832B
Maximum Sum
brute force
,
sortings
,
two pointers
1100
x19653
1862C
Flower City Fence
binary search
,
data structures
,
implementation
,
sortings
1100
x19651
1895B
Points and Minimum Distance
greedy
,
math
,
sortings
800
x19637
1767B
Block Towers
data structures
,
greedy
,
sortings
800
x19575
807A
Is it rated?
implementation
,
sortings
900
x19523
1336A
Linova and Kingdom
dfs and similar
,
dp
,
greedy
,
sortings
,
trees
1600
x19351
1798A
Showstopper
greedy
,
implementation
,
sortings
800
x19334
27A
Next Test
implementation
,
sortings
1200
x19334
1920B
Summation Game
games
,
greedy
,
math
,
sortings
1100
x19271
1656A
Good Pairs
math
,
sortings
800
x19242
1712C
Sort Zero
greedy
,
sortings
1100
x19223
1867A
green_gold_dog, array and permutation
constructive algorithms
,
sortings
800
x19205
1430B
Barrels
greedy
,
implementation
,
sortings
800
x19141
1369C
RationalLee
greedy
,
math
,
sortings
,
two pointers
1400
x19060
1922B
Forming Triangles
combinatorics
,
constructive algorithms
,
math
,
sortings
1200
x19008
984A
Game
sortings
800
x18924
1729D
Friends and the Restaurant
greedy
,
sortings
,
two pointers
1200
x18855
1445A
Array Rearrangment
greedy
,
sortings
800
x18811
1665B
Array Cloning Technique
constructive algorithms
,
greedy
,
sortings
900
x18739
1896A
Jagged Swaps
sortings
800
x18726
1656C
Make Equal With Mod
constructive algorithms
,
math
,
number theory
,
sortings
1200
x18500
1311B
WeirdSort
dfs and similar
,
sortings
1200
x18488
1501B
Napoleon Cake
dp
,
implementation
,
sortings
900
x18460
1438B
Valerii Against Everyone
constructive algorithms
,
data structures
,
greedy
,
sortings
1000
x18458
1654A
Maximum Cake Tastiness
brute force
,
greedy
,
implementation
,
sortings
800
x18413
1891A
Sorting with Twos
constructive algorithms
,
sortings
800
x18360
1703F
Yet Another Problem About Pairs Satisfying an Inequality
binary search
,
data structures
,
dp
,
greedy
,
sortings
1300
x18218
1790D
Matryoshkas
data structures
,
greedy
,
sortings
1200
x18188
1914D
Three Activities
brute force
,
dp
,
greedy
,
implementation
,
sortings
1200
x18171
1671B
Consecutive Points Segment
brute force
,
math
,
sortings
1000
x18122
1216B
Shooting
greedy
,
implementation
,
sortings
900
x18074
1846C
Rudolf and the Another Competition
constructive algorithms
,
data structures
,
dp
,
greedy
,
sortings
1200
x17951
1614B
Divan and a New Project
constructive algorithms
,
sortings
1000
x17892
988B
Substrings Sort
sortings
,
strings
1100
x17881
1807G1
Subsequence Addition (Easy Version)
brute force
,
data structures
,
dp
,
greedy
,
implementation
,
sortings
1100
x17865
1688B
Patchouli's Magical Talisman
bitmasks
,
constructive algorithms
,
greedy
,
sortings
800
x17855
1579B
Shifting Sort
implementation
,
sortings
1100
x17816
1933D
Turtle Tenacity: Continual Mods
constructive algorithms
,
greedy
,
math
,
number theory
,
sortings
1200
x17766
1857D
Strong Vertices
math
,
sortings
,
trees
1300
x17731
1807G2
Subsequence Addition (Hard Version)
bitmasks
,
dp
,
greedy
,
implementation
,
sortings
1100
x17713
1605B
Reverse Sort
greedy
,
sortings
1000
x17646
977D
Divide by three, multiply by two
dfs and similar
,
math
,
sortings
1400
x17616
1641A
Great Sequence
brute force
,
greedy
,
sortings
1200
x17528
1450A
Avoid Trygub
constructive algorithms
,
sortings
800
x17494
1827A
Counting Orders
combinatorics
,
math
,
sortings
,
two pointers
1100
x17488
1353D
Constructing the Array
constructive algorithms
,
data structures
,
sortings
1600
x17346
1015C
Songs Compression
sortings
1100
x17330
1682B
AND Sorting
bitmasks
,
constructive algorithms
,
sortings
1100
x17225
1174A
Ehab Fails to Be Thanos
constructive algorithms
,
greedy
,
sortings
1000
x17213
546B
Soldier and Badges
brute force
,
greedy
,
implementation
,
sortings
1200
x17191
1930A
Maximise The Score
greedy
,
sortings
800
x17144
507A
Amr and Music
greedy
,
implementation
,
sortings
1000
x17035
1681C
Double Sort
implementation
,
sortings
1200
x16970
1480B
The Great Hero
greedy
,
implementation
,
sortings
900
x16927
16B
Burglar and Matches
greedy
,
implementation
,
sortings
900
x16898
1427A
Avoiding Zero
math
,
sortings
900
x16833
560A
Currency System in Geraldion
implementation
,
sortings
1000
x16832
609A
USB Flash Drives
greedy
,
implementation
,
sortings
800
x16819
166A
Rank List
binary search
,
implementation
,
sortings
1100
x16778
1144B
Parity Alternated Deletions
greedy
,
implementation
,
sortings
900
x16768
289B
Polo the Penguin and Matrix
brute force
,
dp
,
implementation
,
sortings
,
ternary search
1400
x16754
1495A
Diamond Miner
geometry
,
greedy
,
math
,
sortings
1200
x16684
1574C
Slay the Dragon
binary search
,
greedy
,
sortings
,
ternary search
1300
x16547
1685A
Circular Local MiniMax
constructive algorithms
,
greedy
,
sortings
1100
x16488
1248B
Grow The Tree
greedy
,
math
,
sortings
900
x16469
1561A
Simply Strange Sort
brute force
,
implementation
,
sortings
800
x16449
1607D
Blue-Red Permutation
greedy
,
math
,
sortings
1300
x16408
1689A
Lex String
brute force
,
greedy
,
implementation
,
sortings
,
two pointers
800
x16381
1650C
Weight of the System of Nested Segments
greedy
,
hashing
,
implementation
,
sortings
1200
x16376
1668B
Social Distance
greedy
,
math
,
sortings
900
x16326
1418B
Negative Prefixes
greedy
,
sortings
1300
x16288
572A
Arrays
sortings
900
x16285
1627B
Not Sitting
games
,
greedy
,
sortings
1300
x16279
1624D
Palindromes Coloring
binary search
,
greedy
,
sortings
,
strings
1400
x16265
1762B
Make Array Good
constructive algorithms
,
implementation
,
number theory
,
sortings
1100
x16195
1093B
Letters Rearranging
constructive algorithms
,
greedy
,
sortings
,
strings
900
x16174
1617A
Forbidden Subsequence
constructive algorithms
,
greedy
,
sortings
,
strings
800
x16091
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