Cod sursa(job #1349619)

Utilizator blue_skyPetrica Stefan Cosmin blue_sky Data 20 februarie 2015 12:46:03
Problema Patrate2 Scor 50
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.6 kb
#include <fstream>
#define DIM 200

using namespace std;
short n,a[DIM],lg=1;

void inmultire(int k)
{
    int rest=0;
    for(int i=1;i<=lg;++i)
    {
        a[i]=a[i]*k+rest;
        rest=a[i]/10;
        a[i]=a[i]%10;
    }
    if(rest!=0)
    {
        ++lg;
        a[lg]=rest;
    }
}

int main()
{
    ifstream f("patrate2.in");
    ofstream g("patrate2.out");
    f>>n;
    // n^2 * 2^n * n!
    a[1]=1;
    for(int i=1;i<=n*n;++i)
    inmultire(2);
    for(int i=2;i<=n;++i)
    inmultire(i);
    for(int i=lg;i>=1;--i)
    g<<a[i];
    g<<'\n';
    return 0;
}