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Codeforces functionality may be limited from
June 18, 19:00 (UTC)
to
June 19, 3:00 AM (UTC)
due to technical maintenance. Polygon will work as usual.
×
→ Pay attention
Before contest
Codeforces Round 954 (Div. 3)
5 days
→ Filter Problems
Difficulty:
—
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
27D
Ring Road 2
2-sat
,
dfs and similar
,
dsu
,
graphs
2200
x2388
25E
Test
hashing
,
strings
2200
x2239
19C
Deletion of Repeats
greedy
,
hashing
,
string suffix structures
2200
x1057
13C
Sequence
dp
,
sortings
2200
x4307
11D
A Simple Task
bitmasks
,
dp
,
graphs
2200
x4537
11C
How Many Squares?
implementation
2200
x595
7D
Palindrome Degree
hashing
,
strings
2200
x3543
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