CS 473: Algorithms, Fall 2010
HW 10 (due Thursday, December 2)
This homework contains four problems.
Read the instructions for submitting homework on
the course webpage
. In particular,
make sure
that you write the solutions for the problems on
separate sheets of paper; the sheets for each problem should be stapled together. Write your name
and netid on each sheet.
Collaboration Policy:
For this home work, Problems 13 can be worked in groups of up to 3
students each.
Problem 0 should be answered in Compass as part of the assessment HW10Online
and should be done individually.
0. (10 pts) HW10Online on Compass.
1. (25 pts) Let
G
= (
V,E
) be an undirected graph. A subset
S
⊆
V
of nodes in
G
is called a
covering set
if for all
v
∈
V
,
v
∈
S
or there is some node
u
∈
S
such that
{
u,v
} ∈
E
. In other
words every node in
V
\
S
is connected by an edge to some node in
S
. The decision version of
the minimum covering set problem is the following: Given a graph
G
and an integer
k
, does
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 Fall '08
 Chekuri,C
 Algorithms, Graph Theory, Node Disjoint Paths, Disjoint Paths problem

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