#include <stdio.h>
int main()
{
char men[] = "come and buy";
float kg;
float price =2.2;

printf("today special - %s\n", men);             // just a message
scanf("%f", &kg);                                     // how much kg
printf("you want %f kg.\n", kg);               // printing the kg
printf("that be$%.2f please.\n", price*kg);   // kg*price

int as;                                        // this is just
scanf("%d", &as);                         // to keep the program open      
return (0);                                  //so i can see the result :p
}

#include <stdio.h>

int main()
{
  float unitprice; /* user entry in dollars  */
  int intprice;    /* price in (rounded)cents */
  int quantity;    /* number of items        */
  int itotal;      /* total in cents         */
  int totaldollars, totalcents;

  printf("Enter a number:  ");
  if (scanf("%f", &unitprice) != 1) {
    printf("Illegal entry: not a number.\n");
  }
  if (unitprice < 0) {
    printf("You entered a negative number.\n");
    return 0;
  }
  intprice = (unitprice * 100.0) + 0.5; /* round and convert to (int)cents */
  printf("Price in cents = %d\n", intprice);
  /* now do calculations in cents */
  quantity = 17;
  itotal = quantity * intprice; /* total in cents */

  totaldollars = itotal / 100;
  totalcents   = itotal % 100;

  printf("Total cost     = $%d.%02d\n", totaldollars, totalcents);

  return 0;
}

#include<stdio.h>
int main()
{
   static long a,b,k,l,i;
   float input,temp,result;
   printf("\n enter kg \t");
   scanf("%ld",&a);
   printf("\n enter grams \t");
   scanf("%ld",&b);
   k=b;                         //It is used to calculate the length of grams part
   while(k!=0)
   {
      l++;                      //the length calculates here
      k=k/10;
   }
   for(i=l;i>2;i--)
   {
      b=b/10;                   // rounding off to two decimal places
   }
   temp=(float)b/100;           //conversion in grams
   input=(float)a+temp;         // final input
   result=input*2.25;           // now the cost calculated
   printf("\t %.2f",result);
   return 0;
}

   static long a,b,k,l,i;
   printf("\n enter kg \t");
   scanf("%ld",&a);
   printf("\n enter grams \t");
   scanf("%ld",&b);