What is the difference between a structure and a union?

Question

Accepted Answer

Structure is a data type that allows storing different data types in a single variable, while union is a data type that allows storing only one value at a time.

Structure allows storing multiple data types in a single variable, while union allows storing only one value at a time
In structure, each member has its own memory location, while in union all members share the same memory location
Example: struct Person { char name[20]; int age; }; union Data { int num; float value; };
Structures are used when different types of data need to be stored together, while unions are used when only one type of data needs to be stored at a time