Cod sursa(job #544492)

Utilizator andraardnaandra ardna andraardna Data 1 martie 2011 17:58:01
Problema Cifra Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.31 kb
Raporteaza aceasta sursa 
#include<fstream>

using namespace std;
ifstream fin("cifra.in");
ofstream fout("cifra.out");
int main ()
{
	int n,i,u,p,c,j;
	fin>>n;
	u=0;
	for(i=1;i<=n;i++)
	{
		if(i%4==0)p=4;
		else p=i%4;c=1;
		for(j=1;j<=p;j++)
			c=c*i;
		u=u+c%10;
	}
	fout<<u%10;
	fin.close();
	fout.close();
	return 0;
}