C Program To Find Intersection Of Two Sets | C Programming

C Program To Find Intersection Of Two Sets


#include <stdio.h>
#include <conio.h>
int main()
{
    int a[10], b[10], m, n, i, j;
    int c[20], k = 0, flag = 0;
    int ch;
    printf("Enter the number of elements in first set:\n");
    scanf("%d", &m);
    printf("Enter the elements:\n");
    for (i = 0; i < m; i++)
    {
        scanf("%d", &a[i]);
    }
    printf("\nElement of First set:\n");
    for (i = 0; i < m; i++)
    {
        printf("%d\t", a[i]);
    }
    printf("\nEnter the number of elements in second set:\n");
    scanf("%d", &n);
    printf("\nEnter the elements:");
    for (i = 0; i < n; i++)
    {
        scanf("%d", &b[i]);
    }
    printf("\nElement of Second set:\n");
    for (i = 0; i < n; i++)
    {
        printf("%d\t", b[i]);
    }
    for (i = 0; i < m; i++)
    {
        flag = 0;
        for (j = 0; j < n; j++)
        {
            if (a[i] == b[j])
            {
                flag = 1;
                break;
            }
        }
        if (flag == 1)
        {
            c[k] = a[i];
            k++;
        }
    }
    if (k == 0)
    {
        printf("\n\nResultant set is null set!\n");
    }
    else
    {
        printf("\nElement of resultant set\n");
        for (i = 0; i < k; i++)
        {
            printf("%d\t", c[i]);
        }
    }
}

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