PDP

#include <stdio.h>
#include <stdlib.h>

unsigned long int n,n1,n_base,n_try,up_timh_n_try,up_timh_n_base,*pinakas;
int main(void)
{
//--------------------------------------------
   FILE * in = fopen ("operators.in", "r");
   FILE * out = fopen ("operators.out", "w");
   fscanf (in , "%ld/n", &n);
//--------------------------------------


pinakas = (unsigned long int *) malloc(n * 4);

long int up_timh1,up_timh;

      n--;
      n1=0;
//--------------------------------------
   fscanf(in,"%ld",&pinakas[0]);
n1++;
read:                                 //for (n1++;n1<=n;n1++)
fscanf(in," %ld",&pinakas[n1]);       //{
n1++;                                  //fscanf(in," %ld",&pinakas[n1]);
if(n1<=n)                             //}
 goto read;
 //---------------------------------------


n_try=n;
n_base=0;
//--------------------------------------------
up_timh=2147483647;
//---------------------------------------------------------------
//----------------------------------------------------------------
//------------------------------------------------------------
 loop:


                n1=up_timh1=pinakas[n_base] + pinakas[n_try];

         if(up_timh1 < 0)
           n1=up_timh1*= -1;

         if(up_timh1 < up_timh)
             {
              up_timh=up_timh1;
              up_timh_n_try=n_try;
              up_timh_n_base=n_base;
             }



    main_loop:  //------------------------------------------

        n_try--;

        if (n_base == n_try)
           goto print;

                  up_timh1=pinakas[n_base] + pinakas[n_try];

         if(up_timh1 < 0)
             up_timh1*= -1;
            if (up_timh1 < n1)
               {


        //----------------------------------------------

        if(up_timh1 < up_timh)
                       {
                        up_timh=up_timh1;
                        up_timh_n_try=n_try;
                        up_timh_n_base=n_base;
                        }






                      n1 = up_timh1;
                      goto main_loop;
             }


next_base:  //------------------------------------


        n_try++;




        n_base++;
        if (up_timh == 0)
           goto print;

        goto loop;


//--------------------------------------------------------
//--------------------------------------------------------
//--------------------------------------------------------
print:

 fprintf(out,"%ld %ld\n",pinakas[up_timh_n_base],pinakas[up_timh_n_try]);


//---------------------------------------

end:
fclose(in); fclose(out);
   return 0;
}