Need help getting code to work properly. I am coding in C. This is my current code:

/* * Computing the Weight of a Batch of Flat Washers */

#include /*printf, scanf definitions */ #include #define PI 3.14159

int main(void) {

/* * Pointers */ float *innerradius = (float*) malloc(sizeof(float)); /* input - radius of a inner circle */ float *outerradius = (float*) malloc(sizeof(float)); /* input - radius of outer circle */ float *idiameter = (float*) malloc(sizeof(float)); /* diameter of inner circle */ float *odiameter = (float*) malloc(sizeof(float)); /* diameter of outer circle */ float *rimarea = (float*) malloc(sizeof(float)); /* area of a rim */ float *matden = (float*) malloc(sizeof(float)); /* input - density of material in grams/cm^3 */ float *thickness = (float*) malloc(sizeof(float)); /* input - thickness of material in centimeters */ float *weight = (float*) malloc(sizeof(float)); /* weight of a single washer */ int *quantity = (int*) malloc(sizeof(int)); /* number of washers */ float *batch = (float*) malloc(sizeof(float)); /* weight of a batch of washers */ /* * Calculating the radius of both the inner and outer circles */

printf("Enter the inner diameter> "); scanf("%f ", idiameter);

printf("Enter the outer diameter> "); scanf("%f ", odiameter);

*innerradius = *idiameter / 2.0; *outerradius = *odiameter / 2.0;

printf("The inner radius is %f ", *innerradius); printf("The outer radius is %f ", *outerradius);

/* * Calculating the area of the rim */

*rimarea = PI * *outerradius * *outerradius-PI * *innerradius * *innerradius;

printf("Area of the flat washer is %f ", rimarea);

/* * Finding material density and thickness */

printf(" Enter the density of the material in grams/cm cubed "); scanf("%f",matden);

printf(" Enter the thickness of the flat washer "); scanf("%f",thickness);

/* * Finding the weight of a single flat washer */

*weight = *rimarea * *matden * *thickness;

printf("Weight of a single flat washer is %f ",weight);

/* * Finding the weight of a batch of flat washers */

printf("Number of flat washers in a batch - "); scanf("%d ",quantity);

*batch = *weight * *quantity;

/* * Displaying the weight of the batch of washer */

printf(" The weight of the batch of washers is %f grams ",batch); free(innerradius); free(outerradius); free(idiameter); free(odiameter); free(rimarea); free(matden); free(thickness); free(weight); free(quantity); free(batch); return (0); }