Exercise 1: Write a C Program to create the data for some students (roll, name, mark1, mark2, mark3, term mark) and then find the total marks for each student and average mark of each student.

//Exercise 1: Write a C Program to create the data for some students
//(roll, name, mark1, mark2, mark3, term mark) and then find the total
//marks for each student and average mark of each student.
#include<stdio.h>
void header()
{
    printf("\n\n\n\n\n\n\n\t\tBUILT AND DESIGNED BY >> ARSLAN UD DIN SHAFIQ\n\n\t\tWebsite>>\twww.CWorldbyAS.blogspot.com\n");
    printf("\n\t\tCOMSATS Institute of Information Technology,\n\n\t\t\t\t\t  Lahore , Pakistan\n\n\n");
}
struct student
{
    int rollno;
    char name[500];
    float mark1;
    float mark2;
    float mark3;
    float term_mark;
    float total;
    float average;
}st;
int main()
{
    header();
    system("pause");
    system("cls");
    printf("Enter Roll No.   : ");
    scanf("%d",&st.rollno);
    fflush(stdin);
    printf("\nEnter Name       : ");
    gets(st.name);
    printf("\nEnter Marks 1    : ");
    scanf("%f",&st.mark1);
    printf("\nEnter Marks 2    : ");
    scanf("%f",&st.mark2);
    printf("\nEnter Marks 3    : ");
    scanf("%f",&st.mark3);
    printf("\nEnter Term Marks : ");
    scanf("%f",&st.term_mark);
    system("cls");
    fflush(stdin);
    printf("Name         : %s ",st.name);
    printf("\nMarks 1      : %.2f",st.mark1);
    printf("\nMarks 2      : %.2f",st.mark2);
    printf("\nMarks 3      : %.2f",st.mark3);
    printf("\nTerm Marks   : %.2f",st.term_mark);
    st.total=0;
    st.total=st.mark1+st.mark2+st.mark3+st.term_mark;
    st.average=0;
    st.average=st.total/4;
    printf("\nAverage      : %.2f",st.average);
    printf("\nTotal        : %.2f ",st.total);
    printf("\n\n\n");
    return 0;
}