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Before contest
Codeforces Round #605 (Div. 3)
33:10:29
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Difficulty:
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2-sat
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
meet-in-the-middle
number theory
probabilities
schedules
shortest paths
sortings
string suffix structures
strings
ternary search
trees
two pointers
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Problems
#
Name
468B
Two Sets
2-sat
,
dfs and similar
,
dsu
,
graph matchings
,
greedy
2000
x2514
776D
The Door Problem
2-sat
,
dfs and similar
,
dsu
,
graphs
2000
x2372
780D
Innokenty and a Football League
2-sat
,
graphs
,
greedy
,
implementation
,
shortest paths
,
strings
2000
x2216
228E
The Road to Berland is Paved With Good Intentions
2-sat
,
dfs and similar
,
dsu
,
graphs
2000
x1346
875C
National Property
2-sat
,
dfs and similar
,
graphs
,
implementation
2100
x1314
27D
Ring Road 2
2-sat
,
dfs and similar
,
dsu
,
graphs
2300
x1230
1239D
Catowice City
2-sat
,
dfs and similar
,
graph matchings
,
graphs
2400
x724
568C
New Language
2-sat
,
greedy
2600
x421
1218I
The Light Square
2-sat
,
dfs and similar
,
greedy
2200
x305
1215F
Radio Stations
2-sat
2800
x267
587D
Duff in Mafia
2-sat
,
binary search
2900
x208
538H
Summer Dichotomy
2-sat
,
data structures
,
dfs and similar
,
greedy
3100
x140
1007D
Ants
2-sat
,
data structures
,
trees
3200
x69
1089H
Harder Satisfiability
2-sat
,
dfs and similar
,
graphs
3500
x56
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