Cod sursa(job #1024155)
| Utilizator | Data | 8 noiembrie 2013 12:21:05 | |
|---|---|---|---|
| Problema | Lista lui Andrei | Scor | 50 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.74 kb |
#include <fstream>
using namespace std;
ifstream in("nrcuv.in");
ofstream out("nrcuv.out");
#define R 104659
long long n,m,mat[27][1005],i,j,k;
bool T[27][27];
char l1,l2;
int main()
{
in>>n>>m;
for(i=1;i<=m;i++)
{
in>>l1>>l2;
T[l1-'a'+1][l2-'a'+1]=T[l2-'a'+1][l1-'a'+1]=1;
}
for(i=1;i<=26;i++)
mat[1][i]=1;
for(i=2;i<=n;i++)
{
for(j=1;j<=26;j++)
{
for(k=1;k<=26;k++)
{
if(T[j][k]==0)
{
mat[i][j]+=mat[i-1][k];
mat[i][j]%=R;
}
}
}
}
k=0;
for(i=1;i<=26;i++)
k+=mat[n][i];
out<<k%R;
return 0;
}
