Q:

# Calculate party expenses using C program

This C program can be used to read item details used in party and calculate all expenses, divide expenses in all friends equally.

This program will read item name, price, quantity and calculate amount (price*quantity), using this program maximum 50 items can be read and calculate the total paid amount. (I think 50 items are enough for a party, it’s a joke actually. You can change the maximum number of items according to party items.

``````#include <stdio.h>
#define MAX 50 //maximum items entry

//structure definition
typedef struct item_details{
char itemName[30];	//item name
int quantity;	//item quantity
float price;	//per item price
float totalAmount; //total amount = quantity*price
}item;

int main(){
item thing[MAX]; //structure variable
int i,choice;
int count=0;
float expenses=0.0f;

i=0;
//infinite loop
do{
printf("Enter item details [%2d]:\n",i+1);

printf("Item?  ");
fgets(thing[i].itemName,30,stdin);

printf("Price? ");
scanf("%f",&thing[i].price);

printf("Quantity?  ");
scanf("%d",&thing[i].quantity);

thing[i].totalAmount=(float)thing[i].quantity*thing[i].price;
expenses += thing[i].totalAmount;

i++;	//increase loop counter
count++;//increase record counter

printf("\nWant to more items (press 1): ");
scanf("%d",&choice);

getchar();

}while(choice==1);

//print all items
printf("All details are:\n");
for(i=0; i<count; i++)
{
printf("%-30s\t %.2f \t %3d \n %.2f\n",thing[i].itemName, thing[i].price, thing[i].quantity, thing[i].totalAmount);
}
printf("#### Total expense: %.2f\n",expenses);

printf("Want to divide in friends (press 1 for yes): ");
scanf("%d",&choice);
if(choice==1)
{
printf("How many friends? ");
scanf("%d",&i);
printf("Each friend will have to pay: %.2f\n",(expenses/(float)i));
}

printf("~Thanks for using me... Enjoy your party!!!~\n");
return 0;
}``````

Output

```Enter item details [ 1]:
Item?  Beer (Kingfisher)
Price? 90.50
Quantity?  10

Want to more items (press 1): 1
Enter item details [ 2]:
Item?  RUM (Old Monk)
Price? 5
Quantity?  186

Want to more items (press 1): 1
Enter item details [ 3]:
Item?  R.S. Whisky
Price? 250.50
Quantity?  2

Want to more items (press 1): 0
All details are:
Beer (Kingfisher)        90.50    10   905.00
RUM (Old Monk)           186.00    5   930.00
R.S. Whisky             250.50     2   501.00

#### Total expense: 2336.00
Want to divide in friends (press 1 for yes): 1
How many friends? 6
Each friend will have to pay: 389.33

~Thanks for using me... Enjoy your party!!!~ ```