Submission #3097196

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Source Code Expand

#include<cmath>
#include<iostream>
using namespace std;
int ax,ay,bx,by,cx,cy;
double ab,bc,ca,p;
int main()
{
    cin>>ax>>ay>>bx>>by>>cx>>cy;
    ab=sqrt(pow(ax-bx,2)+pow(ay-by,2));
    bc=sqrt(pow(cx-bx,2)+pow(cy-by,2));
    ca=sqrt(pow(ax-cx,2)+pow(ay-cy,2));
    p=1.0*(ab+bc+ca)/2;
    printf("%.1lf\n",sqrt(p*(p-ab)*(p-bc)*(p-ca)));
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:13:50: error: ‘printf’ was not declared in this scope
     printf("%.1lf\n",sqrt(p*(p-ab)*(p-bc)*(p-ca)));
                                                  ^