18BCE2182 MIDTERM PART-B ATOMIC, C (gcc)

18BCE2182 MIDTERM PART-B ATOMIC

#include <omp.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <time.h>

#define N 50

int main()
{
    srand(time(NULL));
    int arr[N];
    for (int i = 0; i < N; i++)
    {
        arr[i] = (rand() - (RAND_MAX / 2)) % N;
        printf("%d ", arr[i]);
    }
    printf("\n");
    int x = arr[rand() % N];
    int cnt = 0;
    int max = INT_MIN;
    int min = INT_MAX;
    #pragma omp parallel for
    for (int i = 0; i < N; i++)
    {
        if (arr[i] > max)
        {
            #pragma omp critical (max_critical)
            {
                if (arr[i] > max) 
                    max = arr[i];
            }
        } 
        else 
        {
            #pragma omp critical (min_critical)
            {
                if (arr[i] < min) 
                    min = arr[i];
            }
        }
        if (arr[i] > x) 
        {
            # pragma omp atomic
                cnt++;
        }
    }
    printf("max = %d\n", max);
    printf("min = %d\n", min);
    printf("Number of elements greater than %d = %d", x, cnt);
    return 0;
}


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