Submission #111776

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Source Code Expand

#include <iostream>
#include <string>
#include <math.h>
 
using namespace std;
 
int main(){
    int xa,ya,xb,yb,xc,yc;
    cin >> xa >> ya >> xb >> yb >> xc >> yc;
    xa = xa - xc;
    ya = ya - yc;
    xb = xb - xc;
    yb = yb - yc;
    double S = double(abs(xa*yb-ya*xb))/2;
    cout << S << endl;
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:14:38: error: ‘abs’ was not declared in this scope