array calculations

**dwks** · 04-01-2006

Code:

scanf("%s", staff[i][j]);

Look up fgets().

Why don't you just use a array of doubles (or floats)?

Code:

#include<stdio.h>
int main (void)
{
	/*declare variables */
	int i, j;
	double staff[20][3][50];

	/*Allow a user to enter staff's details*/
	printf("Please enter the staff's name, pay classification (in $) and hours worked.\n");
				
		for (i = 0; i < 20; i++)
		{
			for (j = 0; j < 3; j++)
			{ 						
		 	           scanf("%lf", staff[i][j]);
			}/*end (for (j = 0; j < numCols; ++j))*/

			putchar('\n');
					
		}/*end (for (i = 0; i < numRows; ++i))*/

printf("\n\n Name: %s, Pay class: %s, Hrs: %s\n", staff[0][0], staff[0][1], staff[0][2]);
	
     return 0;
}

Something like that might work . . . if you fixed the printf() . . . .

**ortegac** · 04-01-2006

Here is in use of a simple structure. This is a structure that contains array members. You can only use the array of strings in the variables fname and lname.
To be more accurate you need to have a double, as enggabhinandan said. I see that dwk is helping you out too. But I don’t know if that will work, if he says so he knows what he is doing. It might work too.

Tell me if this help you out!
Caleb

Code:

/* Demonstrates a structure that has array members. */

#include <stdio.h>

/* Define and declare a structure to hold the data. */
/* It contains one float variable and two char arrays. */

  struct data{
      char fname[30];
      char lname[30];
      double pay;
      double hrs;
      double totalpayed;
 } rec;

  main()
{
     /* Input the data from the keyboard. */

     printf("Enter the Person first and last names?,\n");
     printf("separated by a space: ");
     scanf("%s %s", rec.fname, rec.lname);

     printf("\nEnter the $ amount payed per hour?: ");
     scanf("%lf", &rec.pay);

	 printf("\nEnter the amount of Hours worked?: ");
     scanf("%lf", &rec.hrs);

	 rec.totalpayed = rec.pay * rec.hrs;

     /* Display the information. */
     /* Note: %.2f specifies a floating-point value */
     /* to be displayed with two digits to the right */
     /* of the decimal point. */

     /* Display the data on the screen. */

     printf("\nPerson Name: %s %s Pay: $%.2lf Hrs: %.2lf Total pay: $%.2lf\n", rec.fname, rec.lname, rec.pay, rec.hrs, rec.totalpayed);

     return 0;
}

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Solution is to use a simple structure

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