Submission #2239985

---

Source Code Expand

#include <iostream>
#include <cmath>

using namespace std;

int calcDirection(int deg);
int calcWindPower(int dis);

int main()
{
    int x1;
    int x2;
    int x3;
    int y1;
    int y2;
    int y3;
    double s;
    cin >> x1 >> y1 >> x2 >> y2 >> x3 >> y3;

    s = fabs((double)(x1 * y2 + x2 * y3 + x3 * y1 - y1 * x2 - y2 * x3 - y3 * x1 ) / 2);

    cout << fixed << setprecision(3) << s << endl;

    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:22:36: error: ‘setprecision’ was not declared in this scope
     cout << fixed << setprecision(3) << s << endl;
                                    ^