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Before contest
Educational Codeforces Round 165 (Rated for Div. 2)
43:31:07
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Difficulty:
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sortings
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
34B
Sale
greedy
,
sortings
900
x48424
33D
Knights
geometry
,
graphs
,
shortest paths
,
sortings
2000
x1128
27A
Next Test
implementation
,
sortings
1200
x19258
23C
Oranges and Apples
constructive algorithms
,
sortings
2500
x1355
22D
Segments
greedy
,
sortings
1900
x2601
21C
Stripe 2
binary search
,
dp
,
sortings
2000
x2009
16B
Burglar and Matches
greedy
,
implementation
,
sortings
900
x16771
15D
Map
data structures
,
implementation
,
sortings
2500
x707
15A
Cottage Village
implementation
,
sortings
1200
x3558
13C
Sequence
dp
,
sortings
2200
x4081
12D
Ball
data structures
,
sortings
2400
x1977
12C
Fruits
greedy
,
implementation
,
sortings
1100
x5730
12B
Correct Solution?
implementation
,
sortings
1100
x7970
5C
Longest Regular Bracket Sequence
constructive algorithms
,
data structures
,
dp
,
greedy
,
sortings
,
strings
1900
x12633
4D
Mysterious Present
dp
,
sortings
1700
x9660
3B
Lorry
greedy
,
sortings
1900
x4200
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