Cod sursa(job #2039515)

Utilizator stahlhelmVirtejaru Mihai stahlhelm Data 14 octombrie 2017 16:55:30
Problema Aria Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.29 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("aria.in");
ofstream c("aria.out");
int main()
{ unsigned long long x[10*10*10*10*10],y[10*10*10*10*10],N,i,s=0;
f>>N;
for(i=1;i<=N;i++)
    f>>x[i]>>y[i];
for(i=1;i<=N;i++)
    s=s+x[i]*y[i+1]-x[i+1]*y[i];
c<<s;
}