C program for Struct

structs.c

#include <stdio.h>
#include <string.h>

struct Student {
	char name[100];
	int marks;
	int roll;
	float grade;
};

int main() {
	int n;
	printf("Enter the number of students: ");
	scanf("%d", &n);
	int option;
	struct Student students[n];
	printf("First, enter the details of students\n");
	for(int i = 0; i < n; i++) {
		printf("Enter the name of student %d: ", i + 1);
		scanf("%s", students[i].name);
		printf("Enter the marks of student %d: ", i + 1);
		scanf("%d", &students[i].marks);
		printf("Enter the roll number of student %d: ", i + 1);
		scanf("%d", &students[i].roll);
		printf("Enter the grade of student %d: ", i + 1);
		scanf("%f", &students[i].grade);
		printf("Recorded the details of student %d", i + 1);
		printf("\n------------------------------------------\n");
	}
	printf("Enter 1 to compare marks\n2 to display the details of students: ");
	scanf("%d", &option);
	if(option == 1) {
		int max = 0;
		for(int i = 0; i < n; i++) {
			if(students[i].marks > students[max].marks) {
				max = i;
			}
		}
		printf("The student with the highest marks is %s with %d marks\n", students[max].name, students[max].marks);
	}
	else if(option == 2) {
		for(int i = 0; i < n; i++) {
			printf("Name: %s\n", students[i].name);
			printf("Marks: %d\n", students[i].marks);
			printf("Roll number: %d\n", students[i].roll);
			printf("Grade: %f\n", students[i].grade);
		}
	}
	return 0;
}