sim management project

#include<stdio.h>

int Add_info()
{
    char name[30];
    FILE *fptr;
    int id;

    float intake, section;
    fptr = fopen("emp.txt", "w+");/*  open for writing */
    if (fptr == NULL)
    {
        printf("File does not exists \n");
        return;
    }
    printf("Enter the id\n");
    scanf("%d", &id);
    fprintf(fptr, "Id= %d\n", id);
    printf("Enter the name \n");
    scanf("%s", name);
    fprintf(fptr, "Name= %s\n", name);
    printf("Enter the Intake\n");
    scanf("%f", &intake);
    fprintf(fptr, "Intake= %.2f\n", intake);
    printf("Enter the Section\n");
    scanf("%f", &section);
    fprintf(fptr, "Section= %.2f\n", section);
    fclose(fptr);

    FILE *fp;
   char buff[255];//creating char array to store data of file
   fp = fopen("emp.txt", "r");
   while(fscanf(fp, "%s", buff)!=EOF){
   printf("%s ", buff);
   }
   fclose(fp);
}


int show_list()
{
    FILE *fp;
   char buff[255];//creating char array to store data of file
   fp = fopen("emp.txt", "r");
   while(fscanf(fp, "%s", buff)!=EOF){
   printf("%s \n", buff);
   }
   fclose(fp);
}


int sim_info()
{
    printf("Idea Sim OF THE PROJECT: \n");
    printf("1. Sim Info \n");
    printf("2. Sim List \n");
    printf("3. Update Info \n");
    printf("4. Delete Info\n");

    int ch;
    printf("Enter your Choice: ");
    scanf("%d", &ch);
    switch(ch)
    {
    case 1:
        Add_info();
        break;
    case 2:
        show_list();
        break;

    default:
        printf("Wrong Input\n");

    }

}


int User()
{
    printf("Nothing\n");

}

int Admin()
{
    printf("ADMIN PANEL OF THE PROJECT: \n");
    printf("1. Idea Sim \n");
    printf("2. Login \n");
    printf("3. Sim Information \n");
    printf("4. My Account\n");
    printf("5. Offers \n");
    printf("6. Emergency Contact \n");
    printf("7. Exit \n");

    int ch;
    printf("Enter your Choice: ");
    scanf("%d", &ch);
    switch(ch)
    {
    case 1:
        idea_sim();
        break;
    case 2:
        idea_sim();
        break;

    default:
        printf("Wrong Input\n");

    }
}

int main()
{
    printf("PROJECT NAME : SIM MANAGEMENT SYSTEM\n\n\n\n\n\n");
    printf("1. USER LOGIN\n");
    printf("2. ADMIN LOGIN\n");
    int ch;
    printf("Enter Your Choice: ");
    scanf("%d", &ch);
    switch(ch)
    {
    case 1:
        User();
        break;
    case 2:
        Admin();
        break;

    default:
        printf("Wrong Input\n");
    }

    return 0;
}