Cod sursa(job #483632)
Utilizator | Data | 9 septembrie 2010 14:50:31 | |
---|---|---|---|
Problema | 12-Perm | Scor | 5 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.41 kb |
#include<fstream>
#include<algorithm>
using namespace std;
ifstream f("12perm.in");
ofstream g("12perm.out");
int N,T5;
void solve()
{
int i,T1,T2,T3,T4;
T1 = 1; T2 = 2; T3 = 6; T4 = 12;
for( i = 5 ; i <= N ; i++ )
{
T5 = T4 + T2 + 2*(i-2) ;
T2 = T3;
T3 = T4;
T4 = T5;
}
}
int main ()
{
f >> N;
solve();
g << T5 << '\n';
f.close();
g.close();
return 0;
}