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Before contest
Educational Codeforces Round 165 (Rated for Div. 2)
21:39:07
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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
887F
Row of Models
greedy
,
sortings
2500
x160
1534H
Lost Nodes
constructive algorithms
,
dp
,
graphs
,
interactive
,
sortings
,
trees
3500
x143
48F
Snow sellers
greedy
,
sortings
2800
x133
1940D
Almost Certainly
*special problem
,
constructive algorithms
,
data structures
,
sortings
x123
1386B
Mixture
*special problem
,
data structures
,
geometry
,
math
,
sortings
2900
x118
1866F
Freak Joker Process
binary search
,
data structures
,
sortings
3100
x113
1297F
Movie Fan
*special problem
,
data structures
,
greedy
,
implementation
,
sortings
x113
64H
Table Bowling
*special problem
,
sortings
2300
x109
649E
Автобус
binary search
,
data structures
,
greedy
,
sortings
2100
x103
1402B
Roads
*special problem
,
geometry
,
sortings
2900
x102
1381E
Origami
geometry
,
math
,
sortings
3300
x100
1762G
Unequal Adjacent Elements
constructive algorithms
,
sortings
3100
x97
1746G
Olympiad Training
binary search
,
data structures
,
dp
,
flows
,
geometry
,
implementation
,
sortings
3500
x88
1628F
Spaceship Crisis Management
binary search
,
data structures
,
geometry
,
sortings
3500
x84
64I
Sort the Table
*special problem
,
sortings
2400
x84
1940C
Burenka and Pether
*special problem
,
data structures
,
dfs and similar
,
divide and conquer
,
dsu
,
graphs
,
sortings
,
trees
x32
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