Ques 2

#include <stdio.h>
#include <string.h>
//Declaring outer and inner structure
struct student
{
    //main structure
    char name[50];
    int age;
    struct uni_info
    {
        //inner structure
        char uni_name[50];
        int uni_id;
    }uni_info[20]; //variable for nested structure
}stu_info[20]; // variable for main structure

int main()
{
    #ifndef ONLINE_JUDGE
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif

    char ch;
    scanf("%s",&stu_info->name); //take name
    scanf("%c",ch); //clear buffer
    scanf("%d",&stu_info->age); //take age
    scanf("%s",&stu_info->uni_info->uni_name); //take nested structure uni name
    scanf("%c",ch); //clear buffer
    scanf("%d",&stu_info->uni_info->uni_id);
    printf("%s\n%d\n%s\n%d",stu_info->name,stu_info->age,stu_info->uni_info->uni_name,stu_info->uni_info->uni_id);

    return 0;
}