Cod sursa(job #1551765)
Utilizator | Data | 16 decembrie 2015 16:45:06 | |
---|---|---|---|
Problema | Cifre | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.33 kb |
#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;
int a,b,c,k,k1,l,i,i1;
double p=1.00;
int main()
{
cin>>a>>b>>c>>k;
for(i=a;i<=b;i++,k1=0){
i1=i;
while((i1>0)&&(k1<k)){if(i1%10==c)k1++;i1/=10;}
if(k1==k)l++;}
p=l/((b-a+1)*1.00);
cout<<p;
return 0;
}