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Before contest
Codeforces Round (Div. 2)
3 days
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Difficulty:
—
strings
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
34C
Page Numbers
expression parsing
,
implementation
,
sortings
,
strings
1300
x4124
31B
Sysadmin Bob
greedy
,
implementation
,
strings
1500
x4165
30E
Tricky and Clever Password
binary search
,
constructive algorithms
,
data structures
,
greedy
,
hashing
,
strings
2800
x688
25E
Test
hashing
,
strings
2200
x2282
21A
Jabber ID
implementation
,
strings
1900
x1804
17E
Palisection
strings
2900
x1525
16D
Logging
implementation
,
strings
1900
x1527
8A
Train and Peter
strings
1200
x5716
7D
Palindrome Degree
hashing
,
strings
2200
x3566
5C
Longest Regular Bracket Sequence
constructive algorithms
,
data structures
,
dp
,
greedy
,
sortings
,
strings
1900
x13139
5B
Center Alignment
implementation
,
strings
1200
x5744
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