View Code of Problem 24

#include <stdio.h>
#include <iostream>
#include <string.h>
#include <string>
#include <algorithm>
#include <iomanip>
#include<vector>
using namespace std;
int main()
{
	int a, b, c;
	cin >> a >> b >> c;
	double p = (a + b + c) / 2.0;
	double s =sqrt( (p*(p - a)*(p - b)*(p - c)));
	cout << fixed << setprecision(2) << s;
	

}
/*
Main.c:2:10: fatal error: iostream: No such file or directory
 #include <iostream>
          ^~~~~~~~~~
compilation terminated.
*/