C++ Data Structure program, C/C++ Programming

Assignment Help:
Description

A long time ago in a galaxy far, far away, the country Mafghanistan had n cities and m old roads, where each road connected a pair of cities. Due to the treacherous mountains, there was no road or even path between some cities (i.e., some cities were unreachable from others). During Operation Mafghanistan Freedom, which spread democracy across Mafghanistan like wildfire in Santa Barbara in the summer, the Mamerican forces evaporated all the old roads in Mafghanistan. As the Commanding General of the Mamerican forces, you are in charge of Operation Mafghan Reconstruction, which will build new roads in Mafghanistan subject to the following constraints:

Due to the treacherous mountains, you may build new roads only between the cities where old roads existed before Operation Mafghanistan Freedom.
You should build enough new roads such that if City A was reachable from City B via some old roads, City A must be reachable from City B via some new roads.
You should minimize the total lengths of the new roads to be built.
Define a region to be a set of cities that will be reachable from one another via some new roads. Find all the regions using algorithms with good asymptotic running times.

You may NOT use STL classes except the string class.

Input

Read input from cin. The input contains the number of cities (n), the number of old roads (m), and a series of old roads where each road is represented by its two terminal cities and its length. Each city is represented by a unique integer from 0 to n-1. Each road length is represented by an integer. The following EBNF specifies the input. An example input is available in the hand out. Your program need not handle invalid input (such as invalid file format or invalid numbers representing cities).

::= *
::= * * ''\n''
::= * * ''\n''
::= * + + * ''\n''
::=
::=
::= +
::= ''0''|''1''|''2''|''3''|''4''|''5''|''6''|''7''|''8''|''9''
::= '' '' | ''\t''
Output

On the first line, print

On the second line, print:

Print each region in the ascending order of the number of cities in the region. For each region:
On the first line, print:

Then, print each new road per line in the ascending order of the lengths of the roads. For each new road, print its two terminal cities represented by their numbers (print the smaller number before the larger number), and then the length of the road, as in the following example:
0 5 10
On the last line, print:

On the last line, print:

The output of your program must match the output of the reference program. In other words, if you run
diff my_output your_output
you should see no output from diff.

Your program must exit with the exit code 0, i.e., call return 0 from the function main() or call exit(0).

Determinism in comparison of equal values

To avoid non-determinism of your algorithm when two roads e1=(s1, t1) and e2=(s2, t2) have the same length, consider e1 to be shorter than e2 if and only if

min(s1, t1) < min(s2, t2), or
min(s1, t1) == min(s2, t2) and max(s1, t1) < max(s2, t2)
To avoid non-determinism of your algorithm when two regions r1={...} and r2={...} have the same number of roads, consider r1 to have fewer roads than r2 if and only if min(r1) < min(r2), where min(s) returns the smallest member of the set s. Note that regions are disjoint sets of cities.

Related Discussions:- C++ Data Structure program

Roman code python help , In general, Roman numerals can be converted mathem...

In general, Roman numerals can be converted mathematically by simply assigning a numerical value to each letter, according to the chart below, and calculating a total: M=1000 | D=5

Explain operators, Operators The variables, which are declared and expl...

Operators The variables, which are declared and explained, are the operands, which are operated upon by the operators. Operators specify what operations are to be performed on

Describe overloading??, A: Along with the C++ language, you can overload op...

A: Along with the C++ language, you can overload operators and functions. Overloading is the practice of supplying more than one definition for a provided function name in the same

AREA UNDER CURVE, Write a program to find the area under the curve y = f(x)...

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b

Define polymorphism?, Define Polymorphism? A: Polymorphism let a client ...

Define Polymorphism? A: Polymorphism let a client to treat di_erent objects in the simialr way even if they were developed from di_erent classes and exhibit di_erent behaviors.

Microprocessors and motherboards, The heart of the modern electronic system...

The heart of the modern electronic system is the microprocessor e.g. the video, sound, game consoles, portable phones and domestic appliances. Let us consider the heart of a home c

How to define a structure, How to Define a Structure? Structure declara...

How to Define a Structure? Structure declarations are rather more complicated than array declarations, ever since a structure must be defined in terms of its individual members

Using substitution model write corresponding constructor, (a) Pairs may be ...

(a) Pairs may be represented using a lambda. Using only lambdas, create a procedure (triple x y z) that constructs a triplet. You may NOT use car, cons or cdr in the triplet proced

#CompilerRelated, #C Why don''t online compilers support the header file?...

#C Why don''t online compilers support the header file? What can I do to resolve this? PS. I have tried , does''nt work either. Thannk in advance.

Decode the Code, Smugglers are becoming very smart day by day. Now they hav...

Smugglers are becoming very smart day by day. Now they have developed a new technique of sending their messages from one smuggler to another. In their new technology, they are send

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd