Thread: A question about structure and array

Suppose I have the following structure and array.

Code:

typedef struct name {
	
	char firstName[20];
	
	char lastName[20];
	
} name


name nameList[100];

Can I assume that nameList[i].firstName and nameList[i].lastName always have a size of 20?

Is strcpy the only way to store data into this name struct array?
(e.g. strcpy(nameList[i].firstName, "John")