#include <iostream>
#include <cmath>

using namespace std;

int main()
{
  
    /*1. how many times happened, that the temperature has changed by more then 10°  */

   const int max_v=30;
   int h[max_v];
   int n;
   do
   {
     cout << "How many data, between: (1<=n<= " <<max_v<< ") " << endl;
     
     cin>>n;
   }while( n<1 || n>max_v);

    cout << " Give the values:  " << endl;
    
for(int i=0; i<n; ++i)
    {
        cin>> h[i];
    }

// counting

    int db=0;

    for(int i=0; i<n-1;++i)	//  - the condition!!!
       {
           if (fabs(h[i]-h[i+1])>10)
               db++;
        }

    cout<<" - it happened  "<<db<<" times; "<<endl;
   

    return 0;
}

****************************************************

#include <iostream>
#include <cmath>

using namespace std;

int main()
{

  /* 2. search  - general..  - did it happen at all, that for 3 days the temperature was less then 0° ? */
  
   const int max_v=30;
   int h[max_v];
   int n;

  do
   {
     cout << "How many data, between: (3<=n<= " <<max_v<< ") " << endl;
     
     cin>>n;
   }while( n<3 || n>max_v);

    cout << " Give the values:  " << endl;
    
for(int i=0; i<n; ++i)
    {
        cin>> h[i];
    }

  
/* search - by while..!!!  */

    int i=0;
    bool van=false;    
/*  van   MEANS : there_is   */

  
/*  HERE YOUR SOLUTION   */

//because it is not sure, that there is:

    if(van)
    cout<<" - yes, there was such a period..! "<<endl;
    else
    cout<<" - no, there was no such a... "<<endl;
    

    return 0;
}



****************************************************




****************************************************

#include <iostream>
#include <cmath>

using namespace std;

int main()
{

    /* what is the average value for those days when the temp. was under 0° ? 
- it is not sure, that there was such a day */

   const int max_v=30;
   int h[max_v];
   int n;

  do
   {
     cout << "How many data, between: (1<=n<= " <<max_v<< ") " << endl;
     
     cin>>n;
   }while( n<1 || n>max_v);

    cout << " Give the values:  " << endl;
    
    for(int i=0; i<n; ++i)
     {
         cin>> h[i];
     }

  

/*  HERE YOUR SOLUTION   */

  




    return 0;
}



****************************************************



#include <iostream>
#include <cmath>

using namespace std;


void read(float v[], int &, int);

int counting(float [], int);

int main()
{

    /*1. how many times happened, that the temperature has changed by more then 10°  */

   const int max_v=30;
   float h[max_v];
   int n;
   

    read(h, n, max_v);


// counting

    int db=counting(h, n);


    cout<<" - it happened  "<<db<<" times; "<<endl;


    return 0;
}


void read(float h[], int & n, int max_v)
{
     do
   {
     cout << "How many data, between: (1<=n<= " <<max_v<< ") " << endl;
     
     cin>>n;
   }while( n<1 || n>max_v);

    cout<<"please, give the values: ";

    for(int i=0; i<n; ++i)
    {

        cin>>h[i];
        cout<<" ";
    }
}



int counting(float h[], int n)
{

       int nr=0;

       for(int i=0; i<n-1;++i)	//  - the condition!!!
       {
           if (fabs(h[i]-h[i+1])>10)
               nr++;
        }

return nr;
}