C PROGRAM FORSECOND SMALLEST NUMBER IN AN UNSORTED ARRAY

 SECOND SMALLEST NUMBER IN AN UNSORTED ARRAY

main()
{
  int un[10], i, s1, s2;
  clrscr();
  printf("Enter array elements: ");
  for ( i = 0; i < 10; ++i )
            scanf("%d", &un[i]);
  s1 = un[0];
  for ( i = 1; i < 10; ++i )
  {
            if ( s1 > un[i] )
                        s1 = un[i];
            if ( s1 != un[0] )
                        s2 = un[0];
            else
                        s2 = un[1];
  }
  for ( i = 1; i < 10; ++i )
  {
            if ( s1 != un[i] && s2 > un[i] )
                        s2 = un[i];
  }
  printf("\nSecond smallest: %d", s2);
  return 0;
}