Cod sursa(job #3237728)

Utilizator popescu_georgePopescu George popescu_george Data 12 iulie 2024 12:26:14
Problema Aria Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.27 kb
Raporteaza aceasta sursa 
#include<bits/stdc++.h>
using namespace std;
ifstream F("aria.in");
ofstream G("aria.out");
long double a,b,c,d,e,f,s;
int main()
{
    for(F>>a>>a>>b>>c>>d,s+=a*d-b*c,G<<fixed<<setprecision(5);F>>e>>f;s+=c*f-d*e,c=e,d=f);
    return s+=b*c-a*d,G<<0.5*(s<0?-s:s),0;
}