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Before contest
Educational Codeforces Round 165 (Rated for Div. 2)
26:35:39
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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
1360B
Honest Coach
greedy
,
sortings
800
x45950
489B
BerSU Ball
dfs and similar
,
dp
,
graph matchings
,
greedy
,
sortings
,
two pointers
1200
x46372
1353B
Two Arrays And Swaps
greedy
,
sortings
800
x47434
34B
Sale
greedy
,
sortings
900
x48438
1850A
To My Critics
implementation
,
sortings
800
x50703
1760A
Medium Number
implementation
,
sortings
800
x53253
490A
Team Olympiad
greedy
,
implementation
,
sortings
800
x55307
432A
Choosing Teams
greedy
,
implementation
,
sortings
800
x56499
1399A
Remove Smallest
greedy
,
sortings
800
x62538
723A
The New Year: Meeting Friends
implementation
,
math
,
sortings
800
x70468
492B
Vanya and Lanterns
binary search
,
implementation
,
math
,
sortings
1200
x70928
230A
Dragons
greedy
,
sortings
1000
x74085
141A
Amusing Joke
implementation
,
sortings
,
strings
800
x77657
405A
Gravity Flip
greedy
,
implementation
,
sortings
900
x94088
160A
Twins
greedy
,
sortings
900
x110502
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x197530
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