Cod sursa(job #3037474)

Utilizator AlexSerban21Serban Alexandru AlexSerban21 Data 25 martie 2023 16:17:58
Problema Patrate2 Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.57 kb
#include <fstream>
using namespace std;
ifstream fin ("patrate2.in");
ofstream fout ("patrate2.out");
int n,i,a[100001];
void produs (int a[],int x)
{
    int t=0;
    for (int i=1; i<=a[0]; i++)
    {
        int l=a[i]*x+t;
        t=l;
        a[i]=t%10;
        t=t/10;
    }
    while (t!=0)
    {
        a[++a[0]]=t%10;
        t=t/10;
    }
}
int main()
{
    fin>>n;
    a[0]=a[1]=1;
    for (i=2; i<=n; i++)
        produs (a,i);
    for (i=1; i<=n*n; i++)
        produs (a,2);
    for (i=a[0]; i>0; i--)
        fout<<a[i];
    return 0;
}