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Name
621E
Wet Shark and Blocks
dp
,
matrices
2000
x2725
1538E
Funny Substrings
data structures
,
hashing
,
implementation
,
matrices
,
strings
2100
x2802
582B
Once Again...
constructive algorithms
,
dp
,
matrices
1900
x3303
718C
Sasha and Array
data structures
,
math
,
matrices
2300
x3370
1332E
Height All the Same
combinatorics
,
constructive algorithms
,
math
,
matrices
2100
x3580
1012B
Chemical table
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
matrices
1900
x3649
1117D
Magic Gems
dp
,
math
,
matrices
2100
x4011
1188B
Count Pairs
math
,
matrices
,
number theory
,
two pointers
2300
x4217
337C
Quiz
binary search
,
greedy
,
math
,
matrices
,
number theory
1600
x4770
1635D
Infinite Set
bitmasks
,
dp
,
math
,
matrices
,
number theory
,
strings
1800
x5995
485A
Factory
implementation
,
math
,
matrices
1400
x8091
1557C
Moamen and XOR
bitmasks
,
combinatorics
,
dp
,
math
,
matrices
1700
x8324
225C
Barcode
dp
,
matrices
1700
x8755
1648A
Weird Sum
combinatorics
,
data structures
,
geometry
,
math
,
matrices
,
sortings
1400
x11738
1513C
Add One
dp
,
matrices
1600
x13204
1699B
Almost Ternary Matrix
bitmasks
,
constructive algorithms
,
matrices
900
x19171
166E
Tetrahedron
dp
,
math
,
matrices
1500
x19948
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