C++ code for 1st practical (intoduction to c++)

         SEMESTER 4: Object oriented programming with C++.

.check that given number is palindron or not :c++ code

 #include<iostream>
using namespace std;
int main()
{
  int number,temp;
  int sum=0,reminder;
  cout<<"give the number what you want"<<endl;
  cin>>number;
  temp=number;
  while(number !=0)
  {
      reminder=number%10;
      sum=sum+reminder*reminder*reminder;
      number=number/10;

  }
    if(sum == temp)
        cout<<"armstrong number"<<endl;
    else
         cout<<"not armstrong number"<<endl;


   return(0);
}

• find the maximum among the three number

#include<iostream>
using namespace std;

int main()

{

     int a,b,c;

     cout<<"give your three numbers"<<endl;

     cout<<"value of a"<<endl;

     cin>>a;

     cout<<"value of b"<<endl;

     cin>>b;

     cout<<"value of c"<<endl;

     cin>>c;

     if(a>b)

     {

         if(a>c)

            cout<<a <<'\t'<<" is maximum among all three"<<endl;

         else

            cout<<c <<'\t'<<" is maximum among all three"<<endl;

     }

     if (b>a)

     {

         if(b>c)

            cout<<b <<'\t'<<"  is maximum among all three"<<endl;

         else

            cout<<c <<'\t'<<"  is maximum among all three"<<endl;

     }

         cout<<"*******"<<endl;

  
  return(0);

}

• write a code for Fibonacci series up to 100.

#include<iostream>
using namespace std;
int main()
{
    int a=0,b=1,c=0;
    int i;
    cout<<"fibbo series of 1 to 100"<<endl;
    for(i=0;i<30;i++)
        {

             if(i<=1)
              c=i;
              else
               {
                   c=a+b;
                    a=b;
                    b=c;
                }

            if(c<=100)
            {
                cout<<c<<endl;
            }

         }
    return(0);
}

• write a program to exchange the information of two variable using pass by reference.

  #include<iostream>
  using namespace std;
  int  swap(float &a,float &b);
  int main()
  {
      float a,b;
      cout<<"give the value of two variable"<<endl;
      cout<<"value of a is "<<endl;
      cin>>a;
      cout<<"value of b is "<<endl;
      cin>>b;
      swap(a,b);
       cout<<" 1.value of a is"<<a<<endl;
        cout<<" 1.value of b is"<<b<<endl;
  }
  int swap(float &a,float &b)
  {
      float t;
        t=a;
        a=b;
        b=t;
       return(0);
  
  

  }