Student Record Program

prog.c

#include <stdio.h>
#define MAX 10

struct date {
	int year;
	int month;
	int date;
};

struct Student_record {
	char name[128];
	int roll_number;
	struct date date_of_birth;
	float s[5];
	float total;
};

void print_record(struct Student_record);
void print_rank_wise(struct Student_record []);
void print_roll_number_wise(struct Student_record []);

int main() {
	int i,j;
	
	struct Student_record sr[MAX];

	for(i = 0; i < MAX; i++) {
		printf("Enter name: ");
		scanf("%s", sr[i].name);
		printf("Enter roll number: ");
		scanf("%d", &sr[i].roll_number);
		printf("Enter DOB in DD MM YYYY format: ");
		scanf("%d %d %d", &sr[i].date_of_birth.date, &sr[i].date_of_birth.month, &sr[i].date_of_birth.year);
		printf("Enter marks :");
		sr[i].total = 0;
		for(j = 0; j < 5; j++) {
			scanf("%f", &sr[i].s[j]);
			sr[i].total += sr[i].s[j];
		}
	}

	print_rank_wise(sr);
	print_roll_number_wise(sr);

	return 0;
}

void print_record(struct Student_record x) {
	printf("%20s %3d %2d - %2d - %4d %3.1f %3.1f %3.1f %3.1f %3.1f %3.1f\n",
		x.name,
		x.roll_number,
		x.date_of_birth.date,
		x.date_of_birth.month,
		x.date_of_birth.year,
		x.s[0],
		x.s[1],
		x.s[2],
		x.s[3],
		x.s[4],
		x.total);
}

void print_rank_wise(struct Student_record x[MAX]) {
	int i,j;
	for(i = 0; i < MAX; i++) {
		for(j = i+1; j < MAX; j++) {
			if(x[i].total < x[j].total) {
				struct Student_record t = x[j];
				x[j] = x[i];
				x[i] = t;
			}
		}
	}
	for(i = 0; i < MAX; i++)
		print_record(x[i]);
}

void print_roll_number_wise(struct Student_record x[MAX]) {
	int i, j;
	for(i = 0 ; i < MAX; i++) {
		for(j = i+1; j < MAX; j++) {
			if(x[i].roll_number > x[j].roll_number) {
				struct Student_record t = x[j];
				x[j] = x[i];
				x[i] = t;
			}
		}
	}
	for(i = 0; i < MAX; i++)
		print_record(x[i]);
}