Sample project code

#include <stdio.h>

struct Car {
    char name[50];
    int model;
    int year;
};

int INDEX = 0;
struct Car car[40];

void insert() {
    printf("Enter car name:\n");
    fflush(stdin);
    scanf("%s", car[INDEX].name);
    fflush(stdout);

    printf("Enter car model:\n");
    scanf("%d", &car[INDEX].model);

    printf("Enter Registration year:\n");
    scanf("%d", &car[INDEX].year);
    printf("Car has been inserted!\n\n");
    INDEX++;
}

void show() {
    int i;
    if (INDEX == 0) {
        printf("List is empty\n\n");
    } else {
        for (i = 0; i < INDEX; i++) {
            printf("Car Name: %s\n", car[i].name);
            printf("Car Model: %d\n", car[i].model);
            printf("Registration Year: %d\n", car[i].year);
            printf("\n");
        }
    }
}

int main() {
    int choise;

    while (1) {
        printf("Menu\n");
        printf("1. Insert Car\n");
        printf("2. Show All Cars\n");
        printf("3. Exit\n");
        printf("Enter your choise:\n");
        scanf("%d", &choise);

        if (choise == 1) {
            insert();
        } else if (choise == 2) {
            show();
        } else if (choise == 3) {
            break;
        } else {
            printf("Wrong Option!\n\n");
        }
    }
}