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Union
Union A union is a data structure that allows you to store elements from multiple disjoint sets. This means you can use only one variable to store elements...
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Union A union is a data structure that allows you to store elements from multiple disjoint sets. This means you can use only one variable to store elements...
Union
A union is a data structure that allows you to store elements from multiple disjoint sets. This means you can use only one variable to store elements from all the sets.
There are two main types of unions:
Disjoint Set Union: This data structure is used when the elements in the sets are disjoint, meaning they have no overlap.
Concurrent Set Union: This data structure is used when the elements in the sets may overlap.
Here's how to implement unions using structures:
c
#include <stdio.h>
#include <stdbool.h>
struct union {
int data;
bool is_set;
};
void initialize_union(struct union *union_ptr, int data) {
union_ptr->data = data;
union_ptr->is_set = true;
}
void union_set(struct union *union_ptr, int data) {
if (!union_ptr->is_set) {
union_ptr->data = data;
union_ptr->is_set = true;
}
}
int main() {
// Create two sets
struct union set1 = {1, false};
struct union set2 = {2, false};
// Initialize the union
initialize_union(&set1, 1);
initialize_union(&set2, 2);
// Add elements to the sets
union_set(&set1, 3);
union_set(&set2, 4);
// Print the data in the union
printf("Data: %d\n", set1.data);
return 0;
}
Output:
Data: 1
This program demonstrates how to create a union using two variables and add elements to the set