Submission #111968

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Source Code Expand

#include <iostream>
#include <string>
#include <math.h>
#include <algorithm>
using namespace std;


int main()
{
	double xa,ya,xb,yb,xc,yc,hoge,fuga;
	cin>>xa>>ya>>xb>>yb>>xc>>yc;

	xb -= xa;
	xc -= xa;
	yb -= ya;
	yc -= ya;

	hoge = abs(static_cast<double>(xb*yc) - static_cast<double>(xc*yb))/2;
	fuga = hoge*10;
	

	if((int)fuga % 10 == 0)
		cout<<hoge<<".0"<<endl;
	else
		cout<<hoge<<endl;

	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:18:68: error: call of overloaded ‘abs(double)’ is ambiguous
./Main.cpp:18:68: note: candidates are:
/usr/include/stdlib.h:771:12: note: int abs(int)
/usr/include/c++/4.6/cstdlib:173:3: note: long long int __gnu_cxx::abs(long long int)
/usr/include/c++/4.6/cstdlib:139:3: note: long int std::abs(long int)