Cod sursa(job #1373851)

Utilizator firutibogdanFiruti Bogdan-Cristian firutibogdan Data 4 martie 2015 20:57:59
Problema Progresie Scor 0
Compilator cpp Status done
Runda Arhiva ICPC Marime 0.34 kb
Raporteaza aceasta sursa 
#include<fstream>
using namespace std;
int n,i,t;
long double s,r;
int main()
{
     ifstream fin("progresie.in");
    ofstream fout("progresie.out");
    fin>>t;
    for(i=1;i<=t;i++)
    {
        fin>>n>>r;
        s=1+(n-1)*r*((n-1)*r+1);
        fout<<s<<'\n';
    }
    fin.close();
    fout.close();
    return 0;
    }