Submission #172948

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Source Code Expand

#include<iostream>
#include<string>
#include<cmath>
 
using namespace std;
 
double myabs(double in){
			if( in < 0.0) return -in;
				return in;
}
 
int main(){
	double a[7];
	cin>>a[0]>>a[1]>>a[2]>>a[3]>>a[4]>>a[5];
	double tmp = (a[2]-a[0])*(a[5]-a[1]) - (a[3]-a[1])*(a[4]-a[0]);
	tmp = myabs(tmp);
	tmp /= 2.0;
	cout << setprecision(10); 
	cout<<tmp<<endl;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:18:25: error: ‘setprecision’ was not declared in this scope