int N;
    printf("How many people?\n");
    scanf("%d",&N);
    for(int i = 0 ; i < N ; i++)
    {    
        printf("\nPerson #%d\n",i+1);
        printf("Age?\n");
        fgets(p.name, 65, stdin);
        scanf("%d", &p.age);

        printf("Height?\n");
        scanf("%lf", &p.height);

        printf("Name?\n");
        scanf(" %[^\n]",p.name);

        fwrite(&p, sizeof(Person), 1, fp);
    }