Reverse a Number & recursive function c++

Linear Search in C++ Program Example Code

#include
#include

     int main()

    {
cout<<"enter the size of array:   ";
int size;
cin>>size;
int array[size], key,i;

 taking input in array
 for(int j=0;j

{
 cout<<"enter "<
 cin>>array[j];
 }
your entered array is
 for(int a=0;a

{

   cout<<"array[ "<
   cout<
 }
 cout<<"enter key to search  in array";
 cin>>key;
  for(i=0;i

{
     if(key==array[i])

{
  cout<<"key found at index number :  "<
  break;
   }
 }

if(i != size)

{
cout<<"key found at index :  "<
}
else

{
cout<<"key not found in array  ";
}
   return 0;
}

Reverse a Number in C++ Program Code

   

     #include

     #include

int main()

{
int number, reverse = 0;
cout<<"input a number to reverse and press enter: ";
 cin>> number; 

 taking input number in variable number
   for( ; number!= 0 ; )
   {
      reverse = reverse * 10;
      reverse = reverse + number%10;
      number = number/10;
   }
   cout<<"new reversed number is:  "<    return 0;
}

C++ program linear search program using recursive function

 #include

 #include

int recursivelinearsearch(int array[],int key,int size)

{

    size=size-1;

      if(size <0 span="">

{

      return -1;

      }

      else if(array[size]==key)

{

      return 1;

      }

      else

{

      return recursivelinearsearch(array,key,size);

      }

    }

    int main()

 {

    cout<<"enter the size of array:   ";

    int size;

    cin>>size;

    int array[size], key,i;

   taking input in array

    for(int j=0;j

{

    cout<<"enter "<

    cin>>array[j];

 }

   your entered array is

  for(int a=0;a

{

       cout<<"array[ "<  =  ";

       cout<

    }

    cout<<"enter key to search  in array";

    cin>>key;

    int result;

result=recursivelinearsearch(array,key,size--);

    if(result==1)

{

    cout<<"key found in array  ";

    }

    else

{

    cout<<"key not found in array  ";

    }

       return 0;

    }