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Before contest
Codeforces Round 950 (Div. 3)
08:50:31
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Difficulty:
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binary search
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
67D
Optical Experiment
binary search
,
data structures
,
dp
1900
x1346
65C
Harry Potter and the Golden Snitch
binary search
,
geometry
2100
x773
62B
Tyndex.Brome
binary search
,
implementation
1800
x1265
56E
Domino Principle
binary search
,
data structures
,
sortings
2200
x2228
53B
Blog Photo
binary search
,
implementation
1700
x1371
51C
Three Base Stations
binary search
,
greedy
1800
x1826
50D
Bombing
binary search
,
dp
,
probabilities
2100
x597
30E
Tricky and Clever Password
binary search
,
constructive algorithms
,
data structures
,
greedy
,
hashing
,
strings
2800
x679
28D
Don't fear, DravDe is kind
binary search
,
data structures
,
dp
,
hashing
2400
x591
24E
Berland collider
binary search
2300
x865
21C
Stripe 2
binary search
,
dp
,
sortings
2000
x2030
16C
Monitor
binary search
,
number theory
1800
x4544
11E
Forward, march!
binary search
,
dp
,
greedy
2800
x348
8D
Two Friends
binary search
,
geometry
2600
x513
6E
Exposition
binary search
,
data structures
,
dsu
,
trees
,
two pointers
1900
x3016
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