TheAlgorithms-C/misc/quartile.c

#include <math.h>
#include <stdio.h>
#include <stdlib.h>

int main()
{
    int a[10], n, i, j, temp;
    float q1, q3, iqr;

    printf("Enter no. for Random Numbers :");
    scanf("%d", &n);
    for (i = 0; i < n; i++)
    {
        a[i] = rand() % 100;
    }
    printf("Random Numbers Generated are :\n");
    for (i = 0; i < n; i++)
    {
        printf("\n%d", a[i]);
    }
    printf("\n");
    printf("\nSorted Data:");
    for (i = 0; i < n; i++)
    {
        for (j = 0; j < n; j++)
        {
            if (a[i] < a[j])
            {
                temp = a[i];
                a[i] = a[j];
                a[j] = temp;
            }
        }
    }
    for (i = 0; i < n; i++)
    {
        printf("\n%d", a[i]);
    }
    q1 = a[n / 4];
    printf("\nFirst Quartile : %f", q1);
    q3 = a[(3 * n) / 4];
    printf("\nThird Quartile : %f", q3);
    iqr = q3 - q1;
    printf("\nInterQuartile Range is : %f", iqr);

    return 0;
}