4.1 This program is used to store and access "id, name and percentage" for one student using structure. We can also store and access these data for many studeuts using array of structures. 4.2 : Program for student detail information. 4.3 Program for accessing members of structure. 4.4 Program for array of structures. 4.5 Program for the declaration of a pointer to a structure. 4.6 Program for pointer to a structure. 4.7 Program for passing of structure variables by the means of its members passing each its members of by value and by address/reference. 4.8 In this program, the whole structure is passed to another function by value. It means the whole structure is passed to another function with all members and their values. So, this structure can be accessed from called function. 4.9 In this program, the whole structure is passed to another function by address. It means only the address of the structure is passed to another function. The whole structure is not passed to another function with all members and their values. So, this structure can be accessed from called function by its address. 4.10 Program for nested structure. 4.11 Program for typedef with structure