How do i print out the names of the items inputted? - c

Question

i'm new to programming so i'm having a hard time figuring out how to output the names of the items inputted in my loop, all other calculations are executing but i keep getting unknown values when the names of the item is outputted.
#include <stdio.h>
int main()
{
int count,num,a;
char *item [15][100];
float price,net_total, tax, total_pay,grandT;
do{
printf("Please enter the name of the item:");scanf("%s",&item[a]);
printf("\n");
printf("Please enter the price of the item: $");scanf("%f",&price);
net_total+=price;
tax=0.14*net_total;
grandT=net_total+tax;
printf("\nSelect '1' to continue or '0' to exit:\n");
scanf("%d",&num);
count++;
}
while (num!=0);
system ("cls");
printf("\tSummary Information of Items purchsed\n");
printf("Name(s)of the item(s) purchased: \t%s\n ",item[a]);
printf("Net total:\t$%.2f\n",net_total);
printf("Total tax:\t$%.2f\n",tax);
printf("Total payable:\t$%.2f\n ",grandT);
}`

Answer 1

1/ You should indent your code so it becomes easier to read.
2/ You didn't initialize a, count and net_total. (a is an index from 0 to 15).
3/ char item [15][100]
#include <stdio.h>
int main()
{
int count=0,num,a=0;
char item [15][100];
float price,net_total=0, tax, total_pay,grandT;
do
{
printf("Please enter the name of the item:");
scanf("%s",&item[a]);
printf("\n");
printf("Please enter the price of the item: $");
scanf("%f",&price);
net_total+=price;
tax=0.14*net_total;
grandT=net_total+tax;
printf("\nSelect '1' to continue or '0' to exit:\n");
scanf("%d",&num);
count++;
}
while (num!=0);
system ("cls");
printf("\tSummary Information of Items purchsed\n");
printf("Name(s)of the item(s) purchased: \t%s\n ",item[a]);
printf("Net total:\t$%.2f\n",net_total);
printf("Total tax:\t$%.2f\n",tax);
printf("Total payable:\t$%.2f\n ",grandT);
}