Cod sursa(job #34033)
Utilizator | Data | 19 martie 2007 23:41:51 | |
---|---|---|---|
Problema | Cifre | Scor | 20 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.44 kb |
#include<fstream.h>
int main(){
ifstream fin("cifre.in");
ofstream fout("cifre.out");
long int a,b,x,p=1;
double z=0;
short c,k=0,nr=0,s=0;
fin>>a>>b>>c>>k;
while (s<k-1) {
s++;
p*=10;}
for (long int i=p;i<=b;i++){
x=i;
nr=0;
for (short y=0;y<k;y++){
if (x%10==c)
nr++;
x/=10; }
if (nr>=k)
z++;}
long int h=b-a;
z/=(h+1);
fout<<z<<"\n";
fin.close();
fout.close();
return 0;
}