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Before contest
Codeforces Round 943 (Div. 3)
01:43:06
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Difficulty:
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matrices
combine-tags-by-or
*combine tags by OR
2-sat
binary search
bitmasks
brute force
chinese remainder theorem
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divide and conquer
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expression parsing
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greedy
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#
Name
691E
Xor-sequences
matrices
1900
x2355
222E
Decoding Genome
dp
,
matrices
1900
x2524
582B
Once Again...
constructive algorithms
,
dp
,
matrices
1900
x3302
1012B
Chemical table
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
matrices
1900
x3647
1635D
Infinite Set
bitmasks
,
dp
,
math
,
matrices
,
number theory
,
strings
1800
x5992
1557C
Moamen and XOR
bitmasks
,
combinatorics
,
dp
,
math
,
matrices
1700
x8316
225C
Barcode
dp
,
matrices
1700
x8745
337C
Quiz
binary search
,
greedy
,
math
,
matrices
,
number theory
1600
x4768
1513C
Add One
dp
,
matrices
1600
x13176
166E
Tetrahedron
dp
,
math
,
matrices
1500
x19921
485A
Factory
implementation
,
math
,
matrices
1400
x8087
1648A
Weird Sum
combinatorics
,
data structures
,
geometry
,
math
,
matrices
,
sortings
1400
x11707
1699B
Almost Ternary Matrix
bitmasks
,
constructive algorithms
,
matrices
900
x19142
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