#include "tools.h"
    void freeze( int temperatures[], int* n );
    void show( int temperatures[], int n );

    void main( void )
    {
        int max = 6;
        int degrees[6] = { 34, 29, 31, 36, 37, 33 };
        freeze( degrees, &max );
        printf( "\nFreezing days: %i\n", max );
        show( degrees, 6 );
    }  
    /* ---------------------------------------------------- */
    void freeze( int temperatures[], int* n )
    {
        int k;
        for(k = *n-1; k >= 0; --k) 
            if ( temperatures[k] >= 32 )  --*n;
    }
    /* ---------------------------------------------------- */
    void show( int temperatures[], int n )
    {
        int k;
        puts( "\n-------------------" );
        for(k = n-1; k >= 0; --k) printf ( "%i \t", temperatures[k] );
        puts( "\n-------------------" );
    }