Cod sursa(job #480141)
Utilizator | FMI Romila Remus Arthur R.A.R | Data | 26 august 2010 15:27:31 |
---|---|---|---|
Problema | Lista lui Andrei | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.63 kb |
#include <fstream>
#define MOD 104659
using namespace std;
ifstream in("nrcuv.in");
ofstream out("nrcuv.out");
bool D[30][30];
int V[1001][30];
int main()
{
int N,M,i,j,k;
char c1,c2;
long nr=0;
in>>N>>M;
while(M--)
{
in>>c1>>c2;
c1-='a',c2-='a';
D[c1+1][c2+1]=1,D[c2+1][c1+1]=1;
}
for(i=1;i<=26;i++)V[1][i]=1;
for(i=2;i<=N;i++)
for(j=1;j<=26;j++)
for(k=1;k<=26;k++)
if(!D[j][k])
V[i][k]+=V[i-1][j],V[i][k]%=MOD;
for(i=1;i<=26;i++)
nr+=V[N][i],nr%=MOD;
out<<nr;
return 0;
}