Write a c++ program that takes a number as an input and check whether the number entered by the user is prime or composite using for loop and if-else statement.
Sample Program Input
Please enter a number: 5
Output
Your entered number is a prime number.
#include <iostream> //Preprogressive Directive
using namespace std; // Global Identifier
int main() // Main Function
{
int number;
cout << "Please enter a number: ";
cin >> number;
bool isPrime = true;
if (number == 1 || number == 0)
{
isPrime = false;
}
else
{
for (int i = 2; i <= number / 2; ++i)
{
if (number % i == 0)
{
isPrime = false;
break;
}
}
}
if (isPrime)
{
cout<<"Your entered number is a prime number.";
}
else
{
cout<<"Your entered number is not a prime number.";
}
return 0;
}
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| c++ programming exercise with solution |
Fibonacci Upto n
#include <iostream> //Preprogressive Directive
using namespace std; // Global Identifier
int main() // Main Function
{
int initialNumber = 0, nextNumber = 1, userNumber;
cout<<"Please Enter a Number: ";
cin>>userNumber;
cout<<initialNumber<<" "<<nextNumber<<" ";
for (int i = 1; i <= userNumber/2; i++)
{
initialNumber += nextNumber;
nextNumber += initialNumber;
cout<<initialNumber<<" "<<nextNumber<<" ";
}
return 0;
}
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| c++ programming exercise with solution |