View Code of Problem 24

#include <stdio.h>
#include <math.h>

int main(void)
{
	int a,b,c;
	float s,p;

	scanf("%d %d %d", &a, &b, &c);

	p = float(a+b+c)/2;

	s = sqrt(p*(p-a)*(p-b)*(p-c));		

	printf("%.2f", s);

	return 0;
}

/*
Main.c: In function 'main':
Main.c:11:6: error: expected expression before 'float'
  p = float(a+b+c)/2;
      ^~~~~
*/