Program to find minimum and maximum from an array using structure

#include<stdio.h>
#include<pthread.h>

struct minmax
{
    int min;
    int max;
};
typedef struct minmax s;

int a[10],n;

void *min_max();
s *smain,*sthread;

main()
{
    int finalmin,finalmax,i;
    pthread_t tid;

    smain=(s*)malloc(sizeof(s));

    printf(\"Enter the limit : \");
    scanf(\"%d\",&n);

    printf(\"\\nEnter the elemenats :\");
    for(i=0;i<n;i++)
    {
        printf(\"\\na[%d] : \",i);
        scanf(\"%d\",&a[i]);
    }

    smain->min=smain->max=a[0];

    pthread_create(&tid,NULL,min_max,NULL);

    for(i=0;i<n/2;i++)
    {
        if(a[i] < smain->min)
            smain->min=a[i];
        if(a[i] > smain->max)
            smain->max=a[i];
    }

    pthread_join(tid,NULL);

    if(smain->min <= sthread->min)
        finalmin=smain->min;
    else
        finalmin=sthread->min;

    if(smain->max >= sthread->max)
        finalmax=smain->max;
    else
        finalmax=sthread->max;

    printf(\"\\nMin : %d \\n Max : %d\",finalmin,finalmax);
}

void *min_max()
{
    int i;

    sthread=(s*)malloc(sizeof(s));

    sthread->min=sthread->max=a[n/2];

    for(i=a[n/2];i<n;i++)
    {
        if(a[i] < sthread->min)
            sthread->min=a[i];
        if(a[i] > sthread->max)
            sthread->max=a[i];
    }
}