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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!!!~ 

C Structure & Union Programs »


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