Nested Structure and Array Within Structure.

Example For Nested Structure and Array Within Structure.

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>
struct data {
    int day;
    int month;
    int year;
};

struct student {
    char name [20];
    struct data bday ;
    struct data graduation_data;
    int grade[3];
};

int main () {
    int num , i , j;
    char f_name[10] , s_name[10] ;
    struct student list [30];
    printf("Enter Number Of Students : \n");
    scanf("%d",&num);
    for (i=0;i<num;i++){
        printf("Please Enter Student %d  First Name : \n",i+1);
        scanf("%s",f_name);
        printf("Please Enter Student %d  Second Name : \n",i+1);
        scanf("%s",s_name);
        strcpy(list[i].name,f_name);
        strcat(list[i].name," ");
        strcat(list[i].name,s_name);
        printf("Please Enter Student %d  BirthDay Date: (day/month/year)\n",i+1);
        scanf("%d%d%d",&list[i].bday.day,&list[i].bday.month,&list[i].bday.year);
        printf("Please Enter Student %d  Graduation Date: (day/month/year)\n",i+1);
        scanf("%d%d%d",&list[i].graduation_data.day,&list[i].graduation_data.month,&list[i].graduation_data.year);
        printf("Please Enter  Three Subject Grade For Student %d :\n",i+1);
        for (j=0;j<3;j++){
            scanf("%d",&list[i].grade[j]);
        }
    }

    printf("Entered Student Information :\n \n");
        for (i=0;i<num;i++){
        printf("Student %d Name : %s\n",i+1,list[i].name);
        printf("Student %d  BirthDay Date: %d / %d / %d \n",i+1,list[i].bday.year,
               list[i].bday.month,list[i].bday.day);
        printf("Student %d  Graduation Date: %d / %d / %d \n",i+1,list[i].graduation_data.year,
               list[i].graduation_data.month,list[i].graduation_data.day);
        printf("Student %d Three Subjects Grades : \nSubject 1 Grade: %d\nSubject 2 Grade : %d\nSubject 3 Grade : %d\n"
               ,i+1,list[i].grade[0],list[i].grade[1],list[i].grade[2]);
        printf("\n");
        }
        return 0 ;
    }

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