C program to calculate the total marks, percentage and division of student with C language

#include <stdio.h>
#include <string.h>
void main()
{
    int rollno, phy, che, eng, total;
    float percentage;
    char name[20];

    printf("Input the Roll Number of the student :");
    scanf("%d", &rollno);

    printf("Input the Name of the Student :");
    scanf("%s", name);

    printf("Input the marks of Physics, Chemistry and English: ");
    scanf("%d%d%d", &phy, &che, &eng);

    total = phy + che + eng;
    percentage = total / 3.0;

    printf("\nRoll No : %d\nName of Student : %s\n", rollno, name);
    printf("Marks in Physics : %d\nMarks in Chemistry : %d\nMarks in English : %d\n", phy, che, eng);

    printf("Total Marks = %d\nPercentage = %5.2f\n", total, percentage);
}

Output:-

Input the Roll Number of the student :54
Input the Name of the Student :laia
Input the marks of Physics, Chemistry and English: 80 60 80

Roll No : 54
Name of Student : laia
Marks in Physics : 80
Marks in Chemistry : 60
Marks in English : 80
FirstTotal Marks = 220
Percentage = 73.33