[c-prog] how to insert multi thread in this program tat i write?

[freak_creeper21]

i writen the program below but i am a noobie in multi threading. I 
need to develop a develop a multithreaded M3 program in C or C++ by 
using POSIX threads(pthreads) library to statistically analyze a set 
of data by computing its minimum value, maximum value and the mean of 
the population. any idea on how to add 8 worker threads to compute 
the minimum, maximum and mean... my data size is 8000. any idea on 
how i set the array to 0-7999. thanx for the help... 


#include <stdio.h>

#define DATA_SIZE 8000

int result_max;
int result_min;

/* need long integer to hold so as to prevent overflow(in case) */
long result_sum;
int mark[DATA_SIZE];

/* compute max, min and total sum */
void Compute()
{

        int  i;

        result_sum=mark[0];
        result_max=mark[0];
        result_min=mark[0];

        /* start from index 1 instead of 0 as the
         * first element is already assigned to the 
         * result_sum, max and min */
        for (i=1; i<DATA_SIZE; i++){
            result_sum = result_sum+mark[i];
            if (mark[i] > result_max) 
                    result_max = mark[i];
            if (mark[i] < result_min) 
                    result_min = mark[i];
        }       

}


int main()
{
        int i;
        int mean;

        for (i=0; i<DATA_SIZE; i++) 
        /* i+1 as starting mark is 1 instead of 0 */
                mark[i] = i+1;


        Compute();
        
        /* integer value for mean is just good enough :) */
        mean = result_sum / DATA_SIZE;

        printf("min=%d, max=%d, mean=%d\n", result_min, result_max, 
mean);
        return 0;
}