Question

b. wg. Prompt the user to input the value of a double variabler, which stores the radius of a sphere. The program then outputs the following: i. The value of 4.0 nr?, which is the surface area of the sphere. ii. The value of (4.0/3.0) 7tr 3, which is the volume of the sphere. 5. Write a program to test the functions described in Exercises 11 and 14 of this chapter. 6. Write a program to test the functions described in Exercises 23 and 26 of this chapter. Write a program that prompts the user to enter two positive integers less than 1,000,000,000 and the program outputs the sum of all the prime numbers between the two integers. Two prime numbers are called twin primes, if the difference between the two primes is 2 or -2. Have the program output all the twin primes and the number of twin primes between the two integers. The following program is designed to find the area of a rectangle, the area of a circle, or the volume of a cylinder. However (a) the statements 8.

No. 7

7th question

i want this code to be done on c++ visual studio without using bool operation.
and please try to make as simple as possible.
Also i need flowchart for the code
thanks.

Q7

I need a code programmed on c++ visual studios.
Also flowchart of the code.
Try to make it simple college level understandable code.
thanks.

Answer 1

#include <iostream>
using namespace std;

bool isPrime(int number)
{
   if (number == 1) {
       return false;
   }
   for (int i = 2; i*i <= number; i++) {
       if (number % i == 0) {
           return false;
       }
   }
   return true;
}

int primeSum(int left, int right)
{
   int sum = 0;
   for (int i = left; i <= right; i++) {
       if (isPrime(i)) {
           sum += i;
       }
   }
   return sum;
}

void printTwinPrimes(int left, int right)
{
   int count = 0;
   for (int i = left; i + 2 <= right; i++)
   {
       if (isPrime(i) & isPrime(i + 2))
       {
           cout << "(" << i << ", " << (i + 2) << ")" << endl;
           count++;
       }
   }
   cout << "twin primes total count :: " << count;
}

int main()
{
   int left, right;
   cout << "enter left range value";
   cin >> left;
   cout << "enter right range value";
   cin >> right;
   cout << primeSum(left, right) << endl;
   cout << "twin primes :-" << endl;
   printTwinPrimes(left, right);

}

enter left range value5 enter right range value100 1055 twin primes :- (5, 7) (11, 13) (17, 19) (29, 31) (41, 43) (59, 61) (71, 73) twin primes total count :: 7

Start get input range OL icright i is prime sumum ti i right i and i+2 are puti and i+1 print count end