Union of Two Sets

union_sets.c

/* WAP in 'C' to find out the union of two set */

#include <stdio.h>

int main() {
	int i, j, k = 0; /* Counters */
	int a[] = {1, 3, 5, 7, 9, 11};
	int b[] = {2, 4, 6, 12, 14, 16, 18, 8, 10, 12, 14, 16, 18, 20};
	int r[99] = {};

	int a_size = sizeof(a)/sizeof(a[0]);
	int b_size = sizeof(b)/sizeof(b[0]);

	for (i = 0; i < a_size; i++) {
		for (j = 0; j < k; j++) {
			if(a[i] == r[j]) {
				break;
			}
		}
		if (j == k) {
			r[k] = a[i];
			k++;
		}
	}

	for (i = 0; i < b_size; i++) {
		for (j = 0; j < k; j++) {
			if(b[i] == r[j]) {
				break;
			}
		}
		if (j == k) {
			r[k] = b[i];
			k++;
		}
	}
	
	for (i = 0; i < k; i++)
		printf("%d ", r[i]);
	
	printf("\n\nSURYANSH SINGH SHISHODIA\n2001641520055\nPSIT-CS-II-AI");

	return 0;
}