Pagini recente » Cod sursa (job #2879874) | Cod sursa (job #1783821) | Cod sursa (job #686506) | Statistici Badita Marcel (MarcelBadita) | Cod sursa (job #880114)
Cod sursa(job #880114)
#include<fstream>
using namespace std;
ifstream in("nrcuv.in");
ofstream out("nrcuv.out");
bool vf[30][30];
const long long R=104659;
long long a[1020][30];
int n , m;
int main()
{
in>>n>>m;
for(int i=1;i<=26;i++)
a[1][i]=1;
for(int i=1;i<=m;i++)
{
char x, y;
in>>x>>y;
vf[x-'a'+1][y-'a'+1]=true;
vf[y-'a'+1][x-'a'+1]=true;
}
for(int i=1;i<=n-1;i++)
{
for(int j=1;j<=26;j++)
{
if(a[i][i]!=0)
{
for(int litnoua=1;litnoua<=26;litnoua++)
{
if(vf[j][litnoua]==false)
{
a[i+1][litnoua]=(a[i+1][litnoua]+a[i][j])%R;
}
}
}
}
}
long long suma=0;
for(int i=1;i<=26;i++)
suma=(suma+a[n][i])%R;
out<<suma;
return 0;
}