Submission #426104

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Source Code Expand

#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;

int main(){
	int xa , ya , xb , yb , xc , yc;
	cin >> xa >> ya >> xb >> yb >> xc >> yc;
	double ans=abs(abs(xa-xb)*abs(ya-yc)-abs(xa-xc)*abs(ya-yb))/2.0;
	printf("%.9f\n" , ans );
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:10:24: error: ‘printf’ was not declared in this scope