Cod sursa(job #1121809)
Utilizator | Data | 25 februarie 2014 14:11:30 | |
---|---|---|---|
Problema | Progresie | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva ICPC | Marime | 0.35 kb |
#include<fstream>
#define LMAX 55000
using namespace std;
ifstream fin("progresie.in");
ofstream fout("progresie.out");
int t,n,r;
long long sol;
int main()
{
fin>>t;
while(t--)
{
fin>>n>>r;
sol=0;
for(int i=1;i<LMAX;i++)
if(i>=(n-1)*r+1)
{
sol=i*i-i+1;
break;
}
fout<<sol<<'\n';
}
return 0;
}