Second Largest and Second Smallest Elements in an Array

#include <stdio.h>
int main()
{
        int n,i,j,temp,a[100];
        printf("Enter the number of elements: ");
        x: scanf("%d",&n);
        if(n<2)
        {
                printf("No. of elements must be greater than 1: ");
                goto x;
        }
        printf("Enter %d elements.\n",n);
        for(i=0; i<n; i++)
                scanf("%d",&a[i]);
        for(i=0;i<n-1;i++)
        {
                for(j=0; j<n-i-1; j++)
                {
                        if(a[j]>a[j+1])
                        {
                                temp = a[j];
                                a[j] = a[j+1];
                                a[j+1] = temp;
                        }
                }
        }
        printf("Second-Smallest number is %d",a[1]);
        printf("\nSecond-Largest number is %d",a[n-2]);
        fflush(stdin);
        getchar();
        return 0;
}
//Output
//Now enter 5 elements:-
//1
//2
//3
//4
//5
//Second Smallest number is 2
//Second Largest is 4