60 475
Assignments Done
98,1%
Successfully Done
In April 2018

Answer to Question #17895 in C++ for Asma

Question #17895
1- A positive number N is called as perfect if the sum of its divisors is equal to N. For example, 28 is called as perfect since the sum of its divisors 1, 2, 4, 7, and 14 is equal to 28. Write a C++ program that reads any positive integer and checks whether the number is perfect or not.
2- Display all the numbers between 2 and 10000 that are called perfect.
Expert's answer


#include <iostream>

#include <vector>

#include <algorithm>

#include <iterator>

&

bool GenerateFactors(int n)

{

int sum = 0;

std::vector<int> factors;

factors.push_back(1);

factors.push_back(n);

for(int i = 2; i * i <= n; ++i)

{

if(n % i == 0)

{

& sum+=i;

& factors.push_back(i);

& if(i * i != n)

& factors.push_back(n / i);

& sum+=n/i;

}

}

if (sum+1 == n){

return true;

} else

return false;

}

&

int main()

{

const int SampleNumbers[] = {28, 45, 60, 81};

&

for(size_t i = 2; i < 10000; ++i)

{

if (GenerateFactors(i)) {

& std::cout << i << "\n";

}

}

system("pause");

}

& where [HA]=[A] pH of a buffer solution will be equal to pKa.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be first!

Leave a comment

Ask Your question

Submit
Privacy policy Terms and Conditions