Struct HW

/*Animals can be classified into insects, birds, mammals and fishes.
Write a program making the best use of composite variables and
bit fields to manage a database of animal entries. The system must
be able to add, delete, replace and lookup entries into the memory
database. The animal classes are described by:
(a) number of legs and life span for insects
(b) flight speed, wing length and migration habbits for birds
(c) weight, height and food type for mammals
(d) weight, swimming depth and water salt percentage for fishes*/

#include <stdio.h>
#include "animals.h"
#include <stdlib.h>

int main()
{
    int nr_i,nr_b,nr_m,nr_f,x,a;
    printf("How many insects do you want to enter?\n");
    scanf("%d",&nr_i);

    printf("Enter information of insects:\n");

    // storing information
    for(x=0; x<nr_i; ++x)
    {
        i[x].nr = x+1;

        printf("\nThe insect number %d:\n",i[x].nr);

        printf("Enter insect: ");
        scanf("%s",i[x].name);


        printf("Enter the number of legs: ");
        scanf("%d",&i[x].nr_legs);

        printf("Enter the life span in months: ");
        scanf("%d",&i[x].lspan);

        printf("\n");
    }

    printf("How many birds do you want to enter?\n");
    scanf("%d",&nr_b);

    printf("Enter information of birds:\n");

    // storing information
    for(x=0; x<nr_b; ++x)
    {
        b[x].nr = x+1;

        printf("\nThe bird number %d:\n",b[x].nr);

        printf("Enter bird: ");
        scanf("%s",b[x].name);

        printf("Enter the flight speed in km/h: ");
        scanf("%d",&b[x].fspeed);

        printf("Enter the wing lenght in meters: ");
        scanf("%.1f",&b[x].wlength);

        //printf("Enter the migration habbits: ");
        //scanf("%s",b[x].mhabits);


        printf("\n");
    }


    printf("How many mammals do you want to enter?\n");
    scanf("%d",&nr_m);

     printf("Enter information of mammals:\n");

    // storing information
    for(x=0; x<nr_m; ++x)
    {
        m[x].nr = x+1;

        printf("\nThe mammal number %d:\n",m[x].nr);

        printf("Enter mammal: ");
        scanf("%s",m[x].name);

        printf("Enter the weight in kg: ");
        scanf("%.1f",&m[x].weight);

        printf("Enter the height in cm: ");
        scanf("%d",&m[x].height);

        //printf("Enter the food type: ");
        //scanf("%s",m[x].food);


        printf("\n");
    }

    printf("How many fishes do you want to enter?\n");
    scanf("%d",&nr_f);

    printf("Enter information of fishes:\n");

    // storing information
    for(x=0; x<nr_f; ++x)
    {
        f[x].nr = x+1;

        printf("\nThe fish number %d:\n",f[x].nr);

        printf("Enter fish: ");
        scanf("%s",f[x].name);

        printf("Enter the weight in kg: ");
        scanf("%.1f",&f[x].weight);

        printf("Enter the swimming depths in m: ");
        scanf("%d",&f[x].sdepths);

        printf("Enter the water salt percentage: ");
        scanf("%d",&f[x].wsaltper);


        printf("\n");
    }

    printf("Displaying Information:\n\n");
    // displaying information
    for(x=0; x<nr_i; ++x)
    {
        printf("\nInsect number: %d\n",x+1);
        printf("Name: ");
        puts(i[x].name);
        printf("Number of legs: %d\n",i[x].nr_legs);
        printf("Life span: %d months\n",i[x].lspan);

        printf("\n");
    }

    printf("If you wish to add another student,press 1\n");


    scanf("%d",&a);
    if(a==1)
        printf("HAI");
    else
        printf("No student,okay boss");


    return 0;
}

struct insects
{
    char name[10];
    int nr;
    int nr_legs;
    int lspan;
}i[10];

struct birds
{
    //char mhabits[100];
    char name[10];
    int nr;
    int fspeed;
    float wlength;


}b[10];

struct mammals
{
    char name[30];
    int nr;
    float weight;
    int height;
    //char food[30];
}m[10];

struct fishes
{
    char name[20];
    int nr;
    float weight;
    int sdepths;
    int wsaltper;
}f[10];