Pagini recente » Cod sursa (job #2813717) | Cod sursa (job #1962771) | Cod sursa (job #2853800) | Cod sursa (job #1660244) | Cod sursa (job #1853040)
#include <cstdio>
using namespace std;
int fv[30][30],fin[30],ofin[30];
int main()
{
freopen("nrcuv.in","r",stdin);
freopen("nrcuv.out","w",stdout);
int n,m,i,j,k,cuv=26,mod=104659;
char x,y;
scanf("%d%d\n",&n,&m);
for(i=1;i<=m;i++)
{
scanf("%c %c\n",&x,&y);
fv[x-'a'+1][y-'a'+1]=1;
fv[y-'a'+1][x-'a'+1]=1;
}
for(i=1;i<=26;i++)
fin[i]=1,ofin[i]=1;
for(k=2;k<=n;k++)
{
for(i=1;i<=26;i++)
{
fin[i]=cuv;
for(j=1;j<=26;j++)
if(fv[i][j])
fin[i]-=ofin[j];
}
cuv=0;
for(i=1;i<=26;i++)
cuv+=fin[i],cuv%=mod,ofin[i]=fin[i];
}
printf("%d",cuv);
return 0;
}