Logical errors in code, output not correct

[jeffcbr]

I am very new to programming and do not know what is wrong with this code...
project due soon. need feedback asap please...



[CODE=c]#include <stdio.h>

// Constant
#define COST_OF_GLASS .02

int main() {

// Declare and initiate variables
int length;
int width;
int height;
int cost;

// Prompt length
printf("Please enter the length of the tank.\n");
scanf("%lf", &length);

// Prompt width
printf("Please enter the width of the tank.\n");
scanf("%lf", &width);

// Prompt height
printf("Please enter the height of the tank.\n")
scanf("%lf", &height);

// Calculate glass demensions
total1 = (length * height)*2
total2 = (length * width)*2
total3 = (height * width)
total = total1 + total2 + total3
cost = total * .02

// Print results
printf("The goldfish tank costs %lf cost to build")

return 0;
}[/CODE]

[Savage]

I am very new to programming and do not know what is wrong with this code...
project due soon. need feedback asap please...



#include <stdio.h>

// Constant
#define COST_OF_GLASS .02

int main() {

// Declare and initiate variables
int length;
int width;
int height;
int cost;

// Prompt length
printf("Please enter the length of the tank.\n");
scanf("%lf", &length);

// Prompt width
printf("Please enter the width of the tank.\n");
scanf("%lf", &width);

// Prompt height
printf("Please enter the height of the tank.\n")
scanf("%lf", &height);

// Calculate glass demensions
total1 = (length * height)*2
total2 = (length * width)*2
total3 = (height * width)
total = total1 + total2 + total3
cost = total * .02

// Print results
printf("The goldfish tank costs %lf cost to build")

return 0;
}

For inputing integer, flag is %d,not %lf.

Savage

[mattmao]

// Print results
printf("The goldfish tank costs %lf cost to build")

should be:

// Print results
printf("The goldfish tank costs %lf cost to build", cost);