What is difference between union and structure?

Answer 1

Structure is a collection of different types of elements on the single name

Answer 2

for example take a structure and union in the following way
struct
{
int a;
int b;
}c;
int main()
{
/* scaning a and b
structure uses different memory locations for a and b
so after scaning we can print them in any way*/

cin>>c.a;
cin>>c.b;
cout<<c.a;
cout<<c.b;
}
if input: 2 3
output:2 3

union
{
int c;
int d;
}e;
int main()
{
/*in union it uses same memory location for all the variables in it */
cin>>e.c;
cout<<e.c;
cin>>e.d;
cout<<e.d;
/* here in unions we should print or use the value immediately other wise the value will be replaced with the next value*/
}

## if my solution is acceptable reply me with an vote###

Answer 3

hii