Cod sursa(job #1377628)
| Utilizator | Data | 5 martie 2015 23:12:04 | |
|---|---|---|---|
| Problema | Pascal | Scor | 20 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.45 kb |
#include <iostream>
#include <fstream>
int fact(int x){
int f=1;
for(int i=1; i<=x; i++)
f=f*i;
return f;
}
int comb(int n, int k){
return fact(n)/(fact(k)*fact(n-k));
}
using namespace std;
int r, d, nr;
int main()
{
ifstream f("pascal.in");
f >> r >> d;
ofstream g("pascal.out");
for(int i=1; i<=r; i++){
if(comb(r, i)%d == 0)
nr++;
}
g << nr;
return 0;
}
