Cod sursa(job #25786)
| Utilizator |  Pop Mircea contt |
Data | 4 martie 2007 14:37:26 |
|---|---|---|---|
| Problema | Cifra | Scor | 0 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.33 kb |
#include<fstream.h>
#include<math.h>
int main()
{
int a[50][50],i,j,suma=0,x,n;
ifstream f("cifra.in");
f>>n;
f.close();
for(i=0;i<=9;i++)
for(j=1;j<=4;j++)
{ x=pow(i,j);
a[i][j%4]=x%10;
}
for(i=1;i<=n;i++)
suma+=a[i%10][i%4];
ofstream g("cifra.out");
g<<suma%10<<"\n";
g.close();
return 0;
}