Supermarket project

#include<stdio.h>
typedef struct supermarket
{
    char pr[50];
    int q;
    int bp;
    int sp;
    int qs;
}supermarket;
int main()
{
    supermarket s;
    char password[50]={"apple"};
    char user[50]={"admin"};
    char p[6];
    char u[6];
    char pname[20],ename[20];
    printf("--------LOG-IN Form--------\n");
    printf("\nEnter Username and Password.\nUsername: ");
    scanf("%s",&u);
    printf("Password: ");
    scanf("%s",&p);
    int i,c=0,d=0,n,ch;
    for(i=0;p[i]!='\0';i++)
    {
        if(u[i]==user[i])
        {
            c++;
        }

        if(p[i]==password[i])
        {
            d++;
        }
    }
    if(c==5 && d==5)
        {
            for(i=1;;i++)
            {
                printf("\nSelect an option:\n1. Add record. (press 1)\n2. Show record. (Press 2)\n3. Search record. (Press 3)\n4. Edit record. (Press 4)\n5. Delete record. (Press 5)\n6. Exit. (press 6)\n");
                scanf("%d",&ch);

                if(ch<1 || ch>=6)
                    break;

                if(ch==5)
                {
                    FILE *f;
                    f=fopen("Supermarket.txt","w");
                    fprintf(f,"\n");
                    fclose(f);
                    printf("\nAll the records has been deleted.\n");
                }

                if(ch==1)
                {
                    FILE *f;
                    f=fopen("Supermarket.txt","a+");
                    printf("\nEnter the following information:\nProduct\nQuantity\nBuying price\nSelling price\nTotal quantity sold\n\n");
                    printf("Product: ");
                    scanf("%s",&s.pr);
                    printf("Quantity: ");
                    scanf("%d",&s.q);
                    printf("Buying price: ");
                    scanf("%d",&s.bp);
                    printf("Selling price: ");
                    scanf("%d",&s.sp);
                    printf("Quantity sold: ");
                    scanf("%d",&s.qs);
                    printf("\n");
                    fprintf(f,"\nProduct: %s\nQuantity: %d\nBuying price: %d\nSelling price: %d\nQuantity sold: %d\n\n",s.pr,s.q,s.bp,s.sp,s.qs);
                    fclose(f);
                }

                if(ch==2)
                {
                    printf("\nOpen the FILE to check the record.\n");
                }

                if(ch==3)
                {
                    FILE *f;
                    f=fopen("Supermarket.txt","a+");
                    printf("Enter product name: ");
                    scanf("%s",&pname);
                    if (strcmp(pname,s.pr)==0)
                    {
                        fprintf(f,"\n\nSearched Record:-\n");
                        fprintf(f,"\nProduct: %s\nQuantity: %d\nBuying price: %d\nSelling price: %d\nQuantity sold: %d\n\n",s.pr,s.q,s.bp,s.sp,s.qs);
                        printf("\nOpen the FILE to check the searched product info.\n");
                    }
                    else
                    {
                        printf("\nThere's no product in the name of \"%s\"\n",pname);
                    }
                    fclose(f);
                }

                if(ch==4)
                {
                    FILE *f;
                    f=fopen("Supermarket.txt","a+");
                    printf("Enter the product that you want to edit: ");
                    scanf("%s",&ename);
                    if(strcmp(ename,s.pr)==0)
                    {
                        printf("\nEnter new product name, Quantity, Buying price, Selling price, Quantity sold:\n");
                        printf("\nEnter the following information:\nProduct\nQuantity\nBuying price\nSelling price\nTotal quantity sold\n\n");
                        printf("Product: ");
                        scanf("%s",&s.pr);
                        printf("Quantity: ");
                        scanf("%d",&s.q);
                        printf("Buying price: ");
                        scanf("%d",&s.bp);
                        printf("Selling price: ");
                        scanf("%d",&s.sp);
                        printf("Quantity sold: ");
                        scanf("%d",&s.qs);
                        printf("\n");
                        fprintf(f,"\nEdited Info:-\n\nProduct: %s\nQuantity: %d\nBuying price: %d\nSelling price: %d\nQuantity sold: %d\n\n",s.pr,s.q,s.bp,s.sp,s.qs);
                    }
                    else
                    {
                        printf("\nThere's no product in the name of \"%s\"\n",ename);
                    }
                    fclose(f);
                }
            }
        }
    else
        printf("\nWrong Username and Password combination.\n");

return 0;
}