SECOND LARGEST NUMBER IN AN UNSORTED ARRAY

#include<stdio.h>

#include<conio.h>

main()

{

  int un[10], i, big1, big2;

  printf("Enter array elements: ");

  for ( i = 0; i < 10; ++i )

            scanf("%d", &un[i]);

  big1 = un[0];

  for ( i = 1; i < 10; ++i )

  {

            if ( big1 < un[i] )

                        big1 = un[i];

            if ( big1 != un[0] )

                        big2 = un[0];

            else

                        big2 = un[1];

  }

  for ( i = 1; i < 10; ++i )

  {

            if ( big1 != un[i] && big2 < un[i] )

                        big2 = un[i];

  }

  printf("Second largest: %d\n", big2);

  return 0;

}